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At least 487 records · Page 27Linked to original sources
PubMed1992

Recognizing malignant skin changes following breast cancer.

Estimates are that 180,000 cases of breast cancer will be diagnosed in 1992. Breast conservation therapy is becoming the treatment of choice for many women. Physicians providing long-term care for these women must be aware of the cutaneous presentations of local metastatic or recurrent disease, including inflammatory, nodular, telangiectatic and scirrhous variants. In addition, radiation changes, as well as the development of a secondary malignancy at the site of previous radiation therapy, must be distinguished from metastatic breast lesions.

Adenocarcinoma↗
PubMedDate not supplied

Congenital mesoblastic nephroma presenting with massive hematuria and hemorrhagic shock: report of one case.

Congenital mesoblastic nephroma (CMN) is a rare benign tumor that occurs during the neonatal period and early infancy. The vast majority of these tumors present as asymptomatic palpable abdominal masses. We describe an unusual presentation of a CMN in a 10-month-old male infant who presented with massive hematuria and the development of hemorrhagic shock. Abdominal ultrasound showed a heterogeneous solid complex mass measuring 4.8 x 3.5 cm arising from the upper pole of the left kidney. The patient was resuscitated using intravenous fluids and blood transfusions because persistent massive bloody urine leading to progressive shock occurred the night of the admission day. Preoperative diagnosis was possible Wilms tumor of the left kidney. The histopathological findings were consistent with the character of a cellular variant of CMN. The patient was free of recurrence and metastasis at the 2-year follow-up examination. Our case report suggests that CMN is a rare benign renal tumor during infancy and may present with unusual massive hematuria and shock.

Hematuria↗
PubMed1991

[Spontaneous bacterial peritonitis: a frequent and recurrent complication in cirrhotic patients with ascites].

One hundred and twenty consecutive patients with liver cirrhosis and ascites were prospectively studied in order to analyze the frequency, clinical and bacteriological features, recurrence, and prognosis of spontaneous bacterial peritonitis (SBP). Two variants of SBP were defined: culture positive SBP and culture negative neutrocytic ascites (CNNA). During a follow-up of 6 +/- 2 months, thirty three episodes in 23 patients were identified. Nineteen episodes had ascites positive cultures (58%). The total mortality rate associated with SBP was 39%. (47% for culture positive form and 29% for CNNA). Seven of 15 cirrhotics who had recovered from a first episode of SBP (46%) had 10 recurrences. Mortality associated with SBP recurrence was 50%. Six-month survival probability was 65% in patients with sterile ascites and 33% in SPB (p < 0.05). Impairment of liver function was present in 23 episodes (70%) but abdominal complaints occurred only in one/third and 4 (12%) were asymptomatic. E coli was the most frequent agent involved in culture positive SBP. We confirm that SBP is a frequent, recurrent and severe complication of ascites in cirrhotics. Episodes of SBP without abdominal symptoms or with a silent course are not infrequent. Then, SBP recognition requires ample use of diagnostic paracentesis.

Adult↗
PubMed1991

[Lung function in tobacco growers suffering from exogenous allergic alveolitis].

Overall 38 patients suffering from exogenous allergic alveolitis of tobacco growers including 28 with alveolitis running its course by the type of bronchitis, 8 with alveolitis which ran its course by the type of bronchial asthma, and 6 with alveolitis running its course by the type of recurrent pneumonia were examined. In all the three variants of alveolitis, the obstructive syndrome associated with pulmonary hyperinflation was predominant in the picture of the functional parameters. Marked restriction of the lungs was recorded in rare cases, the decrease of the diffusion lung capacity was mainly detected by the steady state method. Arterial hypoxemia was detectable at rest and during physical exercise. Distributive disorders turned out to be the main cause of hypoxemia.

Adolescent↗
PubMed1990

[Plasma levels of various gastrointestinal polypeptides in patients with cholelithiasis and different degree of functional disorders of the major duodenal papilla].

Findings of dynamic cholangiomanometry with the analysis of the tension curves are overviewed. This technique helped reveal different functional ailments of the bile papilla in major variants of the cholelithiasis course (acute obstructive++ cholecystitis, recurrent pancreatitis, and choledocholythiasis with obstructive jaundice). Parallel radioimmunoassay-based studies of a series of gastrointestinal polypeptides (insulin, glucagon, gastrin, vasoactive peptide, bombesin , and somatostatin) were conducted to determine the importance of these polypeptides in the pathogenesis of cholelithiasis complications. The levels of certain polypeptides were found to be related to the clinical manifestations of the disease. The complex assessment of the bile papilla function and gastrointestinal polypeptide concentrations offers a possibility for elaborating the pathogenetically relevant methods of therapy for this group of diseases.

Adult↗
PubMed1986

Metastatic trichomatricial carcinoma.

Trichomatricial carcinoma has been recently recognized as a rare malignant variant of pilomatricoma with a potential for local recurrence and, rarely, for distant metastases. We describe such a tumor in a 52-year-old man who developed local recurrence and axillary lymph node metastases within six months of local excision, followed by bilateral pulmonary metastases and 2 1/2 years later by death due to disseminated tumor. This, to our knowledge, is the second reported case of metastasizing trichomatricial carcinoma.

Carcinoma↗
PubMed1984

Fixed drug eruption. A brief review.

Fixed drug eruption (FDE) is a distinctive variant of drug-induced dermatoses with characteristic recurrence at the same site of the skin or mucous membranes. The clinical and laboratory features of FDE are reviewed herein and possible pathogenetic mechanisms are discussed.

Drug Eruptions↗
PubMed1984

Sacral meningocele with conotruncal heart defects: a possible autosomal recessive trait.

Three of four siblings had sacral meningocele with subsequent development of hydrocephaly; two died during the neonatal period due to conotruncal heart defects (transposition of the great vessels and truncus arteriosus type I, respectively). An in utero diagnosis of open neural tube defect was made on the third sibling; persistent slightly elevated alpha-fetoprotein levels in amniotic fluid and increased number of rapidly adhering cells in short term amniotic cell culture were found. The unique combination of sacral meningocele and conotruncal malformations in this sibship suggests a new autosomal recessive condition. It also emphasizes the heterogeneity of both the open neural tube defects and congenital heart defects. Awareness of this variant is necessary in regard to the 25% recurrence risk instead of the 3% to 5% recurrence risk given for both congenital heart defects and open neural tube defects as isolated anomalies. The difficult prenatal diagnosis for the small neural tube defect should be appreciated.

Female↗
PubMed1995

Expressions of E-cadherin and exon v6-containing isoforms of CD44 and their prognostic values in human transitional cell carcinoma.

Cell surface adhesion molecules, E-cadherin and exon v6 containing CD44 isoforms (CD44v6), were readily found in well-to-moderately differentiated urothelial cell lines but were down-regulated in poorly differentiated cell lines. One hundred and fifteen tumors of transitional cell carcinoma (TCC) were examined with E-cadherin and CD44v6 specific antibodies. Sixty-five (56.5%) tumors exhibited a preserved type while 50 (43.5%) showed a reduced type for CD44v6. Sixty-seven (58.3%) tumors were classified as the preserved type, and 48 (41.7%) were classified as the reduced type for E-cadherin. The staining pattern of E-cadherin was the same as that of CD44v6 in 87.0% (100 of 115) of tumors. The frequency of the reduced type was higher in poorly differentiated carcinomas (32 of 52 for CD44v6, p = 0.001; 27 of 52 for E-cadherin, p = 0.112) and tumors with an invasive growth pattern (22 of 27 for CD44v6, p < 0.001; 20 of 27 for E-cadherin, p < 0.001) than it was in well-differentiated carcinomas and tumors with expansile growth. However, the association with lymph node involvement or distant metastasis did not reach statistical significance. There was no difference in survival in reference to the expression patterns of CD44v6 and E-cadherin. Furthermore, neither marker was a significant prognostic factor for tumor recurrence and survival according to Cox's multiple variant regression analysis.

Adult↗
PubMedDate not supplied

[The effect of the ecologically adverse factors of a Donets Basin industrial region on the clinico-immunological indices of patients with viral hepatitis A and B].

Clinicoimmunological features of viral hepatitis A and B (VH A and VH B) were studied in residents of unfavorable (from the environmental standpoint) regions. 180 VH A, 86 VII B patients were examined. Clinical picture of VH was characterized by predominance of more severe forms, frequent occurrence of cholestatic variant of VH, high rate of protracted and recurrent (in VH B) course of VH, hepato- and splenomegaly of long duration. The immunologic status was characterized by more pronounced T-lymphopenia, noticeable imbalance of T-helpers and T-suppressors, decrease in the level of immunoglobulins, as well as in phagocytic activity of neutrophilic granulocytes and monocytes in peripheral blood. The use of adaptogens and antioxidants in multimodality treatment promotes rapid normalization of clinicoimmunological parameters in VH.

Adolescent↗
PubMed1993

[Migraine: differential diagnosis in episodic vertigo].

Vestibular symptoms can be the predominant feature of migraine both in children and adults. Attacks of spontaneous or positional vertigo lasting from minutes to days may occur with or without concomitant headache. In the literature three syndromes of vestibular migraine have evolved: basilar artery migraine, benign recurrent vertigo and benign recurrent vertigo of childhood. In clinical practice, however, variants seem to be more frequent than the pure syndromes. Diagnosis is based on the individual constellation of typical precipitants and symptoms of migraine and the efficacy of pharmacological migraine prophylaxis. Nine cases are presented.

Adult↗
PubMed2006

Optineurin gene is not involved in the common high-tension form of primary open-angle glaucoma.

PURPOSE: To assess the influence of optineurin in the more common high-tension, primary open-angle glaucoma (POAG). METHODS: Eighteen sporadic cases and 35 probands from 35 familial cases, including three families with one member having normal-tension glaucoma (NTG), were enrolled. Using transgenomic WAVE denaturing high-performance liquid chromatography (DHPLC), all coding portion of the optineurin gene (from exon 4 to exon 16) was analyzed. Samples displaying an altered elution profile were sequenced to confirm and identify sequence variants. Exon 4 containing the previously reported p.E50K (Glu50Lys) recurrent mutation (covering 13% of normotensive cases) was entirely sequenced. RESULTS: We did not detect the mutation p.E50K, and we did not find any other pathogenic mutation. A putative splice-site mutation was detected in one family. Extension of segregation analysis to additional family members and mRNA investigation failed to establish a certain involvement of this mutation with the disease. We detected a number of common polymorphisms, including the previously reported p.M98K (Met98Lys) variant. CONCLUSIONS: In this population, mutations in the optineurin gene are not associated with adult-onset primary POAG.

Adult↗
PubMed1999

An unusual case of multiple recurrence of a glomangioma.

Glomus tumour is a benign lesion arising from the glomus apparatus of the skin and subcutaneous tissue. Glomangioma is the angiomatous variant, which is uncommon. We report a very rare presentation of a glomangioma with multiple recurrences. We advocate preoperative angiography to delineate the extent of the lesion to facilitate complete excision.

Adult↗
PubMed2006

Myxoid monophasic synovial sarcoma: case report of an unusual histological variant.

We report the case of a 61-year-old woman who presented a recurrent myxoid synovial sarcoma involving the right ankle and foot. This tumor, defined as a synovial sarcoma showing more than 50% myxoid change in the stroma, has only recently been described as a rare histological variant. The histological diagnosis is particularly difficult in such cases, as the one we are describing, where the tumor is entirely myxoid and monophasic raising the possibility of other myxoid soft tissue neoplasms, such as extraskeletal myxoid chondrosarcoma, malignant peripheral nerve sheath tumor or leiomyosarcoma. On the basis of morphological and immunophenotypical findings, the diagnosis of myxoid synovial sarcoma should be properly established, especially in view of its unusual clinical course and treatment. Furthermore, we will discuss the clinicopathological and immunohistochemical features observed in our case.

Female↗
PubMed2006

Cellular and reticular variants of hemangioblastoma differ in their cytogenetic profiles.

Capillary hemangioblastomas of the central nervous system are benign tumors and occur either sporadically or as a manifestation of von Hippel-Lindau disease. A rarer cellular and a more common reticular variant can be distinguished on the basis of the abundance of the stromal cell component, with the cellular variant being significantly associated with a greater probability of recurrence. To investigate whether these subtypes differ in their cytogenetic profile, a comparative genomic hybridization analysis of 10 cellular and 10 reticular hemangioblastomas was undertaken. Comparative genomic hybridization revealed DNA copy number changes in 14 of 20 cases (8 of 10 cellular and 6 of 10 reticular hemangioblastomas). The most common changes overall were losses of chromosomes 19 (35%), 6 (30%), and 22q (15%), whereas loss of 3 and gain of 4 were encountered in one case each (5%). The cellular variant showed losses of chromosomes 6 (60%), 22q and 19 (20% each), as well as gain of 4 (10%), whereas the reticular variant presented with losses of chromosomes 19 (50%), 22q and 3 (10% each). Loss of chromosome 6 was significantly associated with the cellular subtype (P < .005), whereas loss of 19/19p was found more frequently in the reticular variant, albeit not significantly (P = .16). In conclusion, our data may point toward different genetic pathways in the pathogenesis of the 2 histologic subtypes of capillary hemangioblastoma.

Adolescent↗
PubMed1996

Tracking hepatitis C virus quasispecies major and minor variants in symptomatic and asymptomatic liver transplant recipients.

To evaluate the possibility that distinct viral quasispecies play a role in the pathogenesis of progressive hepatitis C virus (HCV) infection, we performed a detailed evaluation of HCV quasispecies before and after liver transplantation in five patients infected with HCV genotype 1, three of whom developed severe recurrent hepatitis C and two of whom developed asymptomatic posttransplant infections with high-titered viremia. HCV quasispecies were characterized by using a combination of nucleotide sequencing plus heteroduplex tracking assay of the second envelope gene hypervariable region (HVR). An average of 30 HVR clones were analyzed per specimen; an average of five specimens were analyzed per patient over a 6- to 24-month study period. The complexity of HCV quasispecies in pretransplant serum varied, ranging from one to nine genetically distinct variants for the five patients. However, in all five cases, relatively homogenous quasispecies variants emerged after liver transplantation. In the three patients who developed recurrent hepatitis, quasispecies major variants present in pretransplant serum were efficiently propagated immediately after liver transplantation and were propagated throughout the course of acute and chronic hepatitis. In contrast, in the two asymptomatic cases, we observed rapid depletion of pretransplant quasispecies major variants from posttransplant serum, followed by emergence of new quasispecies variants by posttransplant day 30. Genetic analysis suggested that in these cases, the new quasispecies variants were derived from minor variants present at relatively low clonal frequency (less than 5% of HVR clones) within the pretransplant quasispecies populations. These data demonstrate that quasispecies tracking patterns are associated with the rapidity and severity of HCV-associated liver disease after liver transplantation. Further characterization of HCV quasispecies in animal model systems is warranted.

Amino Acid Sequence↗
PubMed2002

Expression of MUC1 splice variants in benign and malignant ovarian tumours.

MUC1 is expressed on the surface of ovarian cancer cells. Nine different splice variants of MUC1 have been described, but no study has reported on the expression of MUC1 isoforms in human ovarian cancer. Our study compares patterns of expression of MUC1 splice variants of malignant and benign ovarian tumours. Ovarian tissue samples were taken from patients with benign ovarian tumours (n = 34) and from patients who had surgery for primary (n = 47) or recurrent (n = 8) ovarian cancer. RT-PCR for MUC1 splice variants A, B, C, D, X, Y, Z, REP and SEC was performed and their expression compared to clinical and histopathologic parameters. Variants A, D, X, Y and Z were more frequently expressed in malignant than in benign tumours. All primary ovarian cancer cases were positive for variant REP but negative for variant SEC. No significant association of the expression of MUC1 splice variants with the response to chemotherapy or patient survival could be demonstrated. Expression of MUC1 splice variants A, D, X, Y, Z and REP is associated with the presence of malignancy, whereas expression of MUC1/SEC is associated with the absence of malignancy.

Alternative Splicing↗
PubMed1991

[Predicting the risk of recurrence of duodenal ulcer after vagotomy].

The author suggests a multifactor program for decoding the variant of the course of the postoperative period in patients with duodenal ulcer. It was tested in 199 patients. Three groups of patients with a favourable prognosis, an uncertain prognosis, and with a high risk of recurrent ulcer were distinguished. An individual therapeutic program with consideration for the risk group allows the incidence of postoperative recurrence of ulcer to be reduced by more than three times.

Duodenal Ulcer↗