Search PubMed⌕ Search

Biomedical subjects

P Lind

Publications and source records attributed to P Lind.

At least 73 records · Page 4Linked to original sources

Evaluation of head and neck cancer with 18F-FDG PET: a comparison with conventional methods.

The aim of this study was to evaluate the usefulness of 18F-FDG PET in the diagnosis and staging of primary and recurrent malignant head and neck tumours in comparison with conventional imaging methods [including ultrasonography, radiography, computed tomography (CT) and magnetic resonance imaging (MRI)], physical examination, panendoscopy and biopsies in clinical routine. A total of 54 patients (13 female, 41 male, age 61.3+/-12 years) were investigated retrospectively. Three groups were formed. In group I, 18F-FDG PET was performed in 15 patients to detect unknown primary cancers. In group II, 24 studies were obtained for preoperative staging of proven head and neck cancer. In group III, 18F-FDG PET was used in 15 patients to monitor tumour recurrence after radiotherapy and/or chemotherapy. In all patients, imaging was obtained at 70 min after the intravenous administration of 180 MBq 18F-FDG. In 11 of the 15 patients in group I, the primary cancer could be found with 18F-FDG, yielding a detection rate of 73.3%. In 4 of the 15 patients, CT findings were also suggestive of the primary cancer but were nonetheless equivocal. In these patients, 18F-FDG showed increased 18F-FDG uptake by the primary tumour, which was confirmed by histology. One patient had recurrence of breast carcinoma that could not be detected with 18F-FDG PET, but was detected by CT. In three cases, the primary cancer could not be found with any imaging method. Among the 24 patients in group II investigated for staging purposes, 18F-FDG PET detected a total of 13 local and three distant lymph node metastases, whereas the conventional imaging methods detected only nine local and one distant lymph node metastases. The results of 18F-FDG PET led to an upstaging in 5/24 (20.8%) patients. The conventional imaging methods were false positive in 5/24 (20.8%). There was one false positive result using 18F-FDG PET. Among the 15 patients of group III with suspected recurrence after radiotherapy and/or chemotherapy, 18F-FDG was true positive in 7/15 (46.6%) and true negative in 4/15 (26.6%). The conventional imaging methods were true positive in 5/15 (33.3%) and true negative in 4/15 (26.6%). One false negative (6.6%) and three false positive findings (20%) on 18F-FDG PET were due to inflamed tissue. The conventional imaging methods were false positive in three (20%) and false negative in three cases (20%). It is concluded that in comparison to conventional diagnostic methods, 18F-FDG PET provides additional and clinically relevant information in the detection of primary and metastatic carcinomas as well as in the early detection of recurrent or persistent head and neck cancer after radiotherapy and/or chemotherapy. 18F-FDG PET should therefore be performed early in clinical routine, usually before CT or MRI.

Female↗

[Preoperative assessment of thyroid nodules in an endemic goiter region--possibilities and limitations].

In iodine-sufficient areas any thyroid nodule has to be regarded as potentially malignant, whereas in iodine-deficient areas (endemic goiter areas) thyroid nodules, even multinodular goiter, are frequent. The majority of thyroid nodules in an endemic goiter area can be regarded as being most likely benign and thus not all patients with multinodular goiter have to undergo surgery. The major diagnostic aim and challenge is the selection for surgery of only those patients who suffer from mechanical obstruction due to large goiter and those who present with nodules suspicious of malignancy. Thus, for these cases the question of accurately excluding or verifying malignancy is essential for the patient and the specialist of nuclear medicine or endocrinology. A variety of investigations may be used for the preoperative evaluation of thyroid nodules, although currently sonography and fine-needle biopsy have to be regarded as the key investigations to clarify preoperatively the dignity of thyroid nodules. The article presents the indications and limitations of the different methods in use for the evaluation of thyroid malignancy. The authors present a diagnostic algorithm for the preoperative evaluation of thyroid malignancy with special respect to problems occurring in a(n) (former) endemic goiter area.

Biopsy, Needle↗

[Paget disease or fibrous dysplasia of the radius?--A case report].

A 46 years old man, who showed a painful and progressive deformity of the left radius, is presented. After some months a fracture within the affected bone area occurred. The diagnostic procedures including X-ray, MRI, scintigraphy and histology were controversial. Both fibrous dysplasia and Paget's disease of bone were suspected. The critical analysis of all results concluded that the most likely diagnosis was fibrous dysplasia. Unaware of the diagnostic discrepancies, the patient received a therapy with pamidronate 3 x 60 mg intravenously, which improved symptoms. After 14 months, the patient complained again about pain in the left radius. After a second therapy with pamidronate the patient currently exhibits no symptoms. The controversial diagnostic results and the applied therapeutic procedure are discussed.

Diagnosis, Differential↗

Results of preoperative ultrasound guided fine needle aspiration biopsy of solitary thyroid nodules as compared with the histology. A retrospective analysis of 538 patients.

AIM: The goal of this study was to assess the accuracy and limitations of ultrasound guided fine-needle aspiration biopsy (ug-FNAB) of solitary thyroid nodules. METHODS: The ug-FNAB results of 538 patients with solitary thyroid nodules, who afterwards underwent thyroid surgery, were compared retrospectively with the histology. Patients with multinodular goiter were excluded from the study. Ug-FNAB was performed on growing and/or hypoechoic and/or hypofunctional nodules. The ug-FNAB results were grouped as follows: group 1: malignant (n = 44); group 2: malignancy cannot be ruled out (n = 173); group 3: non-malignant (n = 296), group 4: inadequate (n = 25). RESULTS: When the cytological results of group 1 and group 2 were interpreted as being malignant and those of group 3 as being benign, sensitivity, specificity and accuracy of ug-FNAB were 96.7%, 65.8% and 69.5% respectively. The 62 thyroid carcinomas (TC) biopsied presented in 59 cases a suspicious or malignant cytology (95.2%). The smallest TC diagnosed by ug-FNAB had a diameter of 0.5 cm and 36.4% of all papillary TC < or = 1 cm displayed stage pT4. The histology verified a TC in 18 cases out of the 173 ug-FNABs in group 2. Non-malignant ug-FNABs were confirmed by histology in 294 patients (99.3%) in group 3. In 4.65% of the ug-FNABs inadequate material was aspirated. CONCLUSION: Nodules with non-suspicious ug-FNAB results can be safely followed-up by sonography, as the cytological diagnoses were verified in more than 99% by histology. Papillary TC can be diagnosed with ug-FNAB very accurately. As stage pT4 was present in more than one third of patients with papillary TC < or = 1 cm, ug-FNAB is also recommended for thyroid nodules 0.5-1 cm in diameter located adjacent to the thyroid capsule. However, microfollicular proliferations remain the limitation of ug-FNAB, as the cytology cannot distinguish between benign adenoma and follicular TC.

Adenocarcinoma, Follicular↗

Conditional dependence between tests affects the diagnosis and surveillance of animal diseases.

Dependence between the sensitivities or specificities of pairs of tests affects the sensitivity and specificity of tests when used in combination. Compared with values expected if tests are conditionally independent, a positive dependence in test sensitivity reduces the sensitivity of parallel test interpretation and a positive dependence in test specificity reduces the specificity of serial interpretation. We calculate conditional covariances as a measure of dependence between binary tests and show their relationship to kappa (a chance-corrected measure of test agreement). We use published data for toxoplasmosis and brucellosis in swine, and Johne's disease in cattle to illustrate calculation methods and to indicate the likely magnitude of the dependence between serologic tests used for diagnosis and surveillance of animal diseases.

Animals↗

Radiation pneumonitis after breast cancer irradiation: analysis of the complication probability using the relative seriality model.

BACKGROUND: Toxicity of the respiratory system is quite common after radiotherapy of thoracic tumors; breast cancer patients represent one of the groups for which there is also a long expected survival. The quantification of lung tissue response to irradiation is important in designing treatments associated with a minimum of complications and maximum tumor control. METHODS: The study population consisted of 68 patients who received irradiation for breast cancer at Stage II. Radiation pneumonitis was retrospectively assessed on the basis of clinical symptoms and radiological findings. For each patient, a measure of the exposure (i.e., the lung dose-volume histogram [DVH]) and a measure of the outcome was available. Based on these data, a maximum likelihood fitting to the relative seriality model was performed. The uncertainties of the model parameters were calculated and their impact on the dose-response curve was studied. The optimum parameter set was then applied to 5 other patient groups treated for breast cancer, and the normal tissue complication probability (NTCP) was calculated. Each group was individuated by the radiotherapy treatment technique used; the dose distribution in the lung was described by a mean DVH and the incidence of radiation pneumonitis in each group was known. Lung radiosensitivity was assumed to be homogeneous through all of the calculations. RESULTS: The relative seriality model could describe the dataset. The volume effect was found to be relevant in the description of radiation pneumonitis. Age was found to be associated with increased risk of radiation pneumonitis. Two distinct dose-response curves were obtained by splitting the group according to age. The impact of the parameter uncertainties on the dose-response curve was quite large. The parameter set determined could be used predictively on 3 of the 5 patient groups. CONCLUSION: The complication data could be modeled with the relative seriality model. However, further independent datasets, classified according to the same endpoint, must be analyzed before introducing NTCP modeling in clinical practice.

Age Factors↗

Probe-guided surgery for colorectal cancer.

Anti-CEA-scintigraphy turned out to be very reliable in detecting primary and recurrent colorectal cancer, its overall accuracy being more than 90%. The intraoperative application of this technology should provide similar results when focussing at extrahepatic tumor deposits, for example in lymph nodes, thus allowing accurate staging of the underlying disease. To test this hypothesis we launched the following feasibility study the results of which are compared to those reported in the recent literature. We investigated 20 patients, six with rectum and 14 with colon cancer. 24 hours before surgery they were intravenously given 1 ml of a fab'-fragment-antibody to CEA, labeled with 25 mCi of 99mTc (CEA-Scan). During surgery the radioactivity in lymph glands regional to the tumors was measured and compared to the much lower activity in healthy nodes. For this we used a scintillation probe (C-Trak, Care Wise, Inc., Morgan Hill, CA). All lymph nodes of interest were then excised and submitted to frozen section pathology. In 7 out of 20 cases scintimetry led to an up-staging of the disease. In addition we found metastatic spread to lymph nodes that were basically not regional to the primary tumor (retroperitoneum, renal hilum etc.). Scintimetry can precisely identify even very small tumor deposits. So it leads to accurate staging while surgery is still ongoing. In a further step the concept of sentinel node diagnosis, which is right now being clinically evaluated, may some day be applied in colorectal surgical oncology.

Adenocarcinoma↗

Value of ultrasound-guided fine-needle aspiration biopsy of thyroid nodules in an endemic goitre area.

The aim of this study was to determine the value, advantages and limitations of ultrasound-guided fine-needle aspiration biopsy (US-FNAB) in an endemic goitre area. US-FNAB was performed on all outpatients who presented with hypoechoic and/or hypofunctional and/or growing nodules. A total of 4518 US-FNABs were performed and 718 patients from this series underwent surgery. Cytological results of the primarily performed US-FNAB of these patients were compared retrospectively with the histological results. US-FNAB results were grouped as (1) non-malignant (n = 303), (2) non-malignant follicular proliferation (n = 177), (3) malignancy cannot be ruled out (n = 133), (4) malignant (n = 61), (5) inadequate (n = 34), and (6) sampling error; biopsy of a non-malignant nodule (n = 10). Nodules as small as 5 mm in diameter could be biopsied, gaining representative material. US-FNAB found a malignant or suspicious cytology in 65 out of 87 cases with malignant histology (74.71%). Diagnosis of early tumour stages was often possible: 12 of 18 thyroid carcinomas biopsied and smaller than 10 mm in diameter had malignant or suspicious cytology (groups 3 and 4). US-FNAB was performed incorrectly within non-malignant nodules in ten patients (1.39%) with multinodular goitre (ten papillary carcinomas, nine smaller than 10 mm). Regarding the cytology of groups 1 and 2 as benign and those of groups 3 and 4 as malignant, US-FNAB performance was as follows: sensitivity 87.84%, specificity 78.50%, negative predictive values 98.13%, positive predictive values 33.51% and accuracy 79.53%. Biopsies with inadequate material were obtained in 4.73% of all biopsies. No major adverse effects occurred. Re-biopsies in 61 cases did not alter the cytological outcome in those cases where adequate material was obtained. US-FNAB is a valuable method in the pre-operative assessment of thyroid nodules in order to select patients for surgery, as malignancy can often be detected even in early tumour stages. However, even with ultrasonographic guidance, the minimal tumour size detectable by US-FNAB is around 5 mm. The cytological interpretation in cases with regression and microfollicular proliferation also sets limits on the method. However, patients with non-malignant cytologies can be followed up safely by sonography due to the high NPV of US-FNAB as long as thyroid nodules do not become larger. Re-biopsies seem to be of limited value as long as adequate material was obtained by US-FNAB.

Adenocarcinoma, Follicular↗

[Speech disturbances and dyskinesias as initial symptoms of cortico- basal degeneration].

The article describes the development of symptoms in a 59-year-old patient. Dyskinesia and speech disorder were the only clinical features in the beginning. Increased immunological parameters and only slight hypokinetic-rigid signs for a long time made the diagnostical and therapeutical process more difficult, as well as atypical findings in neuroimaging techniques. Corticobasal degeneration was diagnosed about 6 years after onset of clinical symptoms.

Animals↗

Characterisation of Toxoplasma gondii isolates using polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) of the non-coding Toxoplasma gondii (TGR)-gene sequences.

The Toxoplasma gondii (TGR) genes constitute a family of non-coding sequences, three of which have been previously described as possible tools for typing of Toxoplasma gondii isolates. We obtained new isolates of T. gondii from domestic and wild animals, and used these to evaluate the possibility of using TGR gene variants as markers to distinguish among T. gondii isolates from different animals and different geographical sources. Based on the band patterns obtained by restriction fragment length polymorphism (RFLP) analysis of the polymerase chain reaction (PCR) amplified TGR sequences, the T. gondii isolates could be separated into seven groups. Sequencing the amplified products showed that at least 20 TGR sequences not hitherto described had been found, demonstrating that the TGR gene family comprises a large number of different yet highly homologous sequences. Each isolate had its own unique TGR sequence. The TGR gene family therefore seems a promising target for typing individual T. gondii isolates and for studying the genetic distance between two isolates, which can be used for tracing routes of infection.

Animals↗

Can postoperative surveillance with serial CEA immunoscintigraphy detect resectable rectal cancer recurrence and potentially improve tumor-free survival?

BACKGROUND: This study was performed to determine if postoperative serial monitoring of rectal cancer patients can be performed with an immunoscintigraphic imaging test for carcinoembryonic antigen (CEA). It was also of interest to assess whether this test, in combination with standard monitoring procedures used in an intensive surveillance plan, can result in the identification of surgically salvageable patients. STUDY DESIGN: Forty consecutive resected Dukes' B and C rectal cancer patients underwent a prospective, single-institution, surveillance trial of physical examination (including digital rectal examination), endoscopy, CT of the abdomen and pelvis, liver ultrasound, chest x-ray, blood CEA, and CEA immunoscintigraphy with arcitumomab (CEA-Scan, Immunomedics, Morris Plains, NJ) every 6 months for the first 2 years and every 12 months for the next 3 years after initial operation. Outcomes were compared with those from a similar group of 69 patients treated previously at the same institution but without CEA imaging. RESULTS: A total of 219 CEA imaging studies were performed without any significant adverse effects or immune responses, and resulted in lesion sensitivity, specificity, accuracy, and positive and negative predictive values of 94.1%, 97.5%, 97.3%, 76.2%, and 99.5%, respectively. Of the 40 patients, 16 developed 22 surgically confirmed local or distant recurrences, and CEA imaging correctly disclosed 82% of these lesions pre-operatively. All of the patients found to have recurrences had at least one tumor site by CEA imaging; only 6 of 16 had elevated blood CEA titers. On a patient-basis, there was a sensitivity of 100%, a specificity of 79.2%, an accuracy of 87.5%, and positive and negative predictive values of 76.2% and 100%, respectively. The potential therapeutic benefit of serial arcitumomab imaging is suggested by the fact that 6 of 16 patients (37.5%) with recurrence underwent potentially curative second-look operations, compared with 6 of 69 (8.7%) of a comparable population studied at this institution during an earlier 6-year period, using all of the same tests except CEA imaging. None of the patients in this historic control group survived more than 21 months, although the mean survival of the six patients resected for cure in the study population was 35 months (range 11 to 69 months). During 6 years of followup, three of the six re-resected patients eventually died of cancer recurrence, two died from other causes (and were confirmed by necropsy to be tumor-free), and one patient is still free of disease in the sixth year. CEA scanning appeared to be more predictive of recurrence than blood CEA testing or other diagnostic modalities. CONCLUSIONS: Arcitumomab inclusion in intensive surveillance of patients with resected rectal cancer can disclose tumor recurrence at a stage that allowed surgical salvage therapy in 37.5% of the 16 patients with recurrence who had second-look surgery, and in 19% the patients were free of disease during longterm followup. This pilot study suggests that a randomized prospective trial comparing standard surveillance procedures to the use of CEA imaging added thereto should be undertaken.

Adenocarcinoma↗

Scintigraphic and ultrasonographic appearance in different tumor stages of thyroid carcinoma.

RATIONALE AND OBJECTIVES: Scintigraphy is routinely used in evaluating thyroid nodules. Functioning nodules are reported to have a low probability of being malignant. Therefore cancer should appear hypo-functioning or "cold" on scintiscan. The aim of the study was to compare the scintigraphic pattern in different tumor stages of thyroid carcinoma. In addition, sonographic results are evaluated. In 151 patients with thyroid carcinoma 99mTc-pertechnetate scans were evaluated retrospectively by a visual inspection scoring method (A = no significant uptake to D = nodular uptake superior to normal thyroid tissue). Planar images were taken using a small field thyroid gamma camera. There were 52 patients with pT1 carcinoma (2 x follicular and 50 x papillary). The mean tumor size was 0.56 +/- 0.26 cm. The scintigraphic results were A and B in 5.7% (n = 6), C in 73% (n = 38), D in 15.6% (n = 8). Out of 40 patients with pT2 carcinoma, 34 had a papillary, 6 a follicular histology. Mean tumor size was 1.66 +/- 0.49 cm. The scintiscan was A in 12.5% (n = 5), B in 32.5% (n = 13), C in 42.5% (n = 17) and D in 12.5% (n = 5). There were 11 patients with pT3 carcinoma (4 x papillary, 7 x follicular). The mean tumor size was 3.96 +/- 0.88 cm in diameter. Scintiscan was A in 72.7% (n = 8), C in 27.3% (n = 3). Among 48 patients with pT4 carcinoma (2 x follicular, 1 x nondifferentiated, 45 x papillary), scan was A in 41.6% (n = 20), B in 14.5% (n = 7), C in 33.3% (n = 16) and D in 10.4% (n = 5). Mean tumor size was 2.16 +/- 1.45 cm (7 carcinomas < or = 1 cm, 23 x 1-2 cm, the remaining > 2 cm). Tumor size plays an important role in routinely used planar scintigraphy. Nodules greater than 2 cm in diameter tend to appear cold but microcarcinomas (< or = 1 cm) are often indifferent on scan. Therefore, planar 99mTc-pertechnetate scintigraphy is of little value in evaluating small thyroid nodules. In order to diagnose small thyroid nodules, ultrasonography and ultrasonographically guided FNAB should be recommended as the initial diagnostic steps in clinical routine.

Adenocarcinoma, Follicular↗

Unusual malabsorption of levothyroxine.

We report a 50-year-old woman, with overt hypothyroidism undergoing thyrotropin (TSH)-stimulating hormone suppressive levothyroxine (LT4) treatment after subtotal thyroidectomy. At her first visit to our department, the laboratory results revealed a borderline low free thyroxine (FT4) level accompanied by a clearly elevated TSH level. Both parameters did not significantly change during therapy with an oral dose of 500 microg of LT4. Investigations revealed malabsorption of oral administrated LT4. Thyroid serum hormone levels only became normal during parenteral therapy with LT4.

Administration, Oral↗

Comparison between 99mTc-tetrofosmin/pertechnetate subtraction scintigraphy and 99mTc-tetrofosmin SPECT for preoperative localization of parathyroid adenoma in an endemic goiter area.

RATIONALE AND OBJECTIVES: Technetium-99m-((99m)Tc-) tetrofosmin, a cationic, lipophilic complex like (99m)Tc-sestamibi, has proved to be a potential tracer for parathyroid scintigraphy despite some differences in washout behavior from the thyroid gland. Previous results comparing a double-phase technique with single-proton emission computed tomography (SPECT) or with subtraction techniques demonstrated a high detection rate, especially when SPECT and subtraction techniques were used, whereas the double-phase protocol revealed only moderate results. In this study, a direct comparison was made between (99m)Tc-tetrofosmin/pertechnetate subtraction and SPECT to elucidate the optimal protocol for tetrofosmin parathyroid imaging. METHODS: Twenty-three patients who were biochemically suspected of parathyroid adenoma or hyperplasia due to primary or tertiary hyperparathyroidism were included in our study. In all patients, serum calcium, phosphate, and intact parathormone levels were analyzed in a single blood sample before (99m)Tc-tetrofosmin/pertechnetate subtraction scintigraphy and SPECT. Ultrasound of the neck was performed in all patients to exclude false-positive results due to thyroid adenomas. All patients underwent parathyroidectomy with intraoperative revision of all parathyroid glands, and the histological results were compared with preoperative findings. RESULTS: Both imaging modalities, ie, subtraction scintigraphy and SPECT, correctly identified 20 of 23 (87%) histologically confirmed adenomas preoperatively. The positive predictive value was calculated to be 95% and 100%, respectively, for these two methods. Subtraction scintigraphy and SPECT showed concordant results in 19 patients (18 positive, 1 false-negative) and discordant results in 4 patients (2 positive with subtraction, 2 with SPECT). The combined use of subtraction scintigraphy and SPECT techniques revealed a sensitivity of 95.7% (22/23) and a positive predictive value of 95%. The whole procedure can be performed in less than 90 minutes per patient. Whereas subtraction scintigraphy tended to show more false-positive retentions due to thyroid adenomas, the interpretation of SPECT may be difficult in small adenomas with missing thyroid/parathyroid differential washout. CONCLUSIONS: Both imaging modalities, subtraction scintigraphy with pertechnetate and SPECT, are highly sensitive methods for parathyroid adenoma localization with (99m)Tc-tetrofosmin. However, our study did demonstrate that a combination of both modalities can further improve the diagnostic accuracy. Especially in an endemic goiter area, additional ultrasound may be required to avoid false-positive results due to thyroid adenomas.

Adenoma↗

County commissioners as a key constituency for public health.

Local government elected officials are an important constituency for public health as they represent all citizens in their cities and counties, make policy decisions that affect the public's health, and allocate funding to support public health activities. This article describes efforts to determine the current knowledge and perspective of county commissioners regarding factors that affect local governmental decision making, particularly involving public health. Interview findings indicate that county commissioners are influenced by what their constituents consider important. The article suggests actions that public health managers can take to increase local elected officials' understanding of public health.

Community-Institutional Relations↗

The role of F-18FDG PET in thyroid cancer.

Hypofunctioning nodules on scintiscan using Tc-99m Pertechnetate or I-123 have a higher probability of malignancy compared to eu- or hyperfunctioning nodules. However, in the preoperative assessment of thyroid nodules, ultrasonography and ultrasonography guided fine needle aspiration biopsy play the most important role, especially for papillary thyroid cancer. The problem of differentiating follicular adenoma from highly differentiated follicular carcinoma however remains. Also the additional use of a multi tracer imaging strategy (Tl-201/Tc-99m subtraction scan, Tc-99m Sestamibi, Tc-99m Tetrofosmin dual phase scintigraphy) has not solved this problem. Although it is unlikely, the question whether FDG PET is able to give a better differentiation between benign and malignant tumours in the preoperative assessment of thyroid nodules is not answered up to now. In contrast to preoperative diagnostics, FDG PET is of great value in the postoperative follow up of differentiated thyroid cancer. In case of elevated serum thyroglobulin but negative I-131 WBS FDG PET is the method of choice to detect I-131 negative recurrences and metastases. FDG uptake in metastases from differentiated thyroid cancer is correlated to low differentiation and maybe bad prognosis. There is also evidence that FDG PET may have a role in the follow up of anaplastic and especially in medullary thyroid cancer in the future.

Fluorodeoxyglucose F18↗

[Osteoporosis in Turner syndrome with chromosomal mosaicism (45,XO/46,XY). A case report].

We report a rare case of Turner's syndrome (UTS) due to a gonosomal mosaic 45,X0/46,XY with the main clinical feature of several fractures in the course of osteoporosis. The bone mineral density (BMD) of the lumbar spine and the hip measured by DXA showed osteoporosis. The other clinical investigations including laboratory parameters presented beside an estrogen deficiency due to primary amenorrhea, a small thyroid with hypothyroidism, increased renal calciuria and increased markers of bone metabolism. Beside the supplementation of estrogen and thyroid hormone deficits, only a combination of different bone-associated drugs could normalize the bone mineral density and the bone turnover. During a two years' follow-up period no further fractures occurred. Furthermore, theories regarding the occurrence of osteoporosis and other complex pathologies in UTS are discussed with the conclusion that osteopenia in UTS is probably based on a multifactorial genesis. Due to these complex pathologies during adulthood, patients with UTS should get multidisciplinary care in order to reduce morbidity and preserve quality of life.

Adult↗