Segmental cord atrophy. Unusual case report in an infant.
We describe an unusual case of paraplegia in infancy. Radiographs of the spine were unable to detect any anomalies. An MRI demonstrated segmental atrophy of the spinal cord.
Atrophy↗
Biomedical subjects
A Dana
Publications and source records attributed to A Dana.
[Echography in pyelocaliceal tumors].
In a study of over 32 pyelocaliceal tumors greater than 1 cm in diameter, the authors review retrospectively the reports of the pyelographic and sonographic documents obtained in these patients before the definitive diagnosis was confirmed by the pathological examination. They observed that pyelography has a much greater diagnostic accuracy than does sonography: 31 confirmed (27) or suspected (4) tumors whereas only one tumor was overlooked (silent kidney) on pyelography and 12 diagnosed tumors, 15 overlooked and 5 diagnostic errors on ultrasonography. However, it should be noted that the results of ultrasonography are much better when the results of the intravenous pyelogram are known than when the latter is performed first. These results are supported by triple-blind re-reading of ultrasonographic documents of tumors of the excretory tract grouped with documents of normal kidneys presenting another disease of the sinus. The authors conclude that ultrasonography must be performed first whenever a tumor of the excretory tract is suspected (especially in case of hematuria) and that in this field, there are essentially two indications for ultrasonography: --To remove a stone (hyperechogenic with a cone of shadow) if there is a pyelocaliceal lacuna of unknown cause. --To establish that obstruction is due to a tumor, in the presence of a silent kidney.
Hematuria↗
[Ultrasonographic concept of the central prostate. Value of the endorectal approach].
In view of the difficulties involved in tissue characterisation of prostatic lesions by suprapubic and transrectal ultrasonography, the authors propose the concept of the central prostate in order to improve the possibility of histological diagnosis based on a topographical approach to ultrasound modifications. When the lesions are selectively situated in the central prostate, with clear distinction between the central prostate and the peripheral prostate, there is a low probability of a neoplastic lesion. However, the histological diagnosis must be extremely cautious and when a suspicious lesion is detected on ultrasonography, ultrasound guided aspiration biopsy may be required.
Adenoma↗
[Desmoid fibroma of the abdominal wall. Apropos of a case].
A case of desmoid fibroma of anterior abdominal wall, an exceptional benign tumor, is reported. Based on results of CT scan imaging of this lesion, differential diagnosis of other expansive processes of abdominal wall are discussed. This benign tumor is a potentially serious lesion due to its infiltrating character and the high incidence of recurrence. The need for total surgical excision is emphasized.
Abdominal Muscles↗
[Ultrasonography in the study of prostatic pathology].
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Biopsy, Needle↗
Liver changes and complications in adult polycystic kidney disease.
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Adenoma, Bile Duct↗
Lymphographic patterns in systemic mastocytosis with diffuse bone involvement and hematological signs.
Lymphography revealed the nature of diffuse lymph node involvement in systemic mastocytosis with diffuse bone involvement and hematological signs, similar to that seen in some malignant hematological diseases or in osteomyelosclerosis. The final stages of transformation into acute lymphoblastic leukemia must also be considered.
Bone Diseases↗
[Radiological signs of primary sarcoma of the kidney in adults : a report on 5 cases (author's transl)].
Primary sarcomas of the kidney are extremely uncommon and the results of their angiographic study are rarely reported. A study of five cases that were confirmed histologically demonstrates the absence of specific clinical and urographic findings. Arteriographic appearances are variable and not related to the histological type. The poorly vascularized forms are traditionally the most frequent (2 out of 5 cases) but are not fundamentally different from adenocarcinomas. The diagnosis can be suspected, however, when there is an infiltrating peripheral tumor extending well beyond the capsule. The hypovascularized pseudocystic forms raise the same arteriographic problems as the adenocarcinomas. Arteriography can diagnose malignancy, but the diagnosis of sarcoma is usually impossible before operation.
Adult↗
[Value of profile aortography for the topographic diagnosis of intraperitoneal masses: a report on 5 cases (author's transl)].
The superior mesenteric artery was found to be displaced posteriorly in 5 patients with intraperitoneal masses. In 3 cases, the mass was a mesenteric tumor, and in the 2 other cases a tumor arising from the retroperitoneal area which had grown into the mesentery. The authors emphasize, therefore, the value of defining the position of the superior mesenteric artery in the sagittal plane for the topographic diagnosis of intraperitoneal masses. This investigation does not, however, eliminate the possibility of a retroperitoneal origin of the tumoral mass.
Adult↗
[Critical study of the value of superior mesenteric arteriography in the diagnosis of Meckel's diverticulum. Radiological and clinical findings in 10 cases (author's transl)].
The authors underline the value of selective superior mesenteric arteriography in the diagnosis of Meckel's diverticulum. In the ten cases reported, seven were found to have a Meckel's diverticulum on operation, while it was absent in the other three. Arteriography was able to diagnose its presence correctly in sex patients, gave a false positive diagnosis in three cases, and was considered to be normal in the last case in which a Meckel's diverticulum was present. Valid radiological signs are extravasation of the contrast medium into the lumen of the digestive tract and the presence of a vitellin artery dividing into a vascular network. The single fact of a hypervascularized zone at the end of the superior mesenteric artery dividing into a vascular network. The single fact of a hypervascularized zone at the end of the superior mesenteric artery without definite artery formation is not as valid and its interpretation is difficult.
Adolescent↗
[Radiological techniques for locating intrauterine device (author's transl)].
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Adult↗
[The diagnostic possibilities and limitations of arteriography in necrosed carcinomas of the kidney (author's transl)].
On the basis of a review of 186 cases of carcinoma of the kidney studied by arteriography in the Department of Radiology for Diseases of the Urinary Tract at Necker Hospital, the authors drew the following conclusions: 1. The diagnosis of carcinoma could be affirmed in the very great majority of cases and suspected in the others. 2. There were no instances of a reassuring false diagnosis (cyst). 3. A precise, rigourous and faultless technique, perfectly demonstrating the exteriorised part of the mass and attentive, thorough and careful interpretation of the films obtained, in particular with regard to the mass in its exteriorised portion, are always essential in order to obtain such results. In particular, the presence of a vascularisation of a discontinuous opaque band at the periphery of the mass in its exteriorised part indicates a strong suspicion of a necrotic malignancy and under no circumstances is an unreserved diagnosis of a cyst possible. 4. Diagnostic errors in the sense of false positives involving certain "thick-walled" cysts should be eliminated by pre-operative needle puncture. 5. The authors conclude by describing the method of radiological exploration which they feel to be desirable in practice following the discovery of a renal mass by intravenous pyelography.
Aged↗
[Imaging of ureteral and pelvic diverticuli. Apropos of 49 cases].
A review of 49 cases of rare ureteral and pelvic diverticula enables certain clinical and radiologic conclusions to be drawn. Lesions were bifid ureters with blind branches (20 cases), single (8 cases) or multiple (10 cases) diverticula of ureter and pelvic diverticula (11 cases). As previously reported, ureteral diverticula produced few clinical signs whereas these were marked in pyelic lesions. Multiple diverticula are particularly difficult to detect, but diagnosis is the rule from radiologic appearances and is generally confirmed by results of therapy. Their pathogenesis is poorly understood, however, mainly due to lack of histologic data, but recent studies by Cochran suggest they are a particular from of ureteritis. The only debatable point is the frequent association of multiple diverticula with bladder tumor, described by Cochran and confirmed by the authors and unlikely to be the result of chance. Further studies are necessary to provide clarification.
Adolescent↗
[Results of radiological studies of prostate lesions in patients with urinary tract tuberculosis (author's transl)].
The authors have reviewed the case-reports of 160 patients with urinary tract tuberculosis in whom a complete radiological examination of the lower urinary tract had been performed. They analyze the frequency and significance of any prostatic lesions and describe the most effective investigational procedures for demonstrating such lesions. They were observed in about 50% of patients as opacification of the prostatic cavities, and can be clearly demonstrated in the large majority of cases by micturition cystography after intravenous urography, provided a satisfactory technique hs been used. In those cases where intravenous urography does not permit an effective micturition study, retrograde opacification is necessary, preferably by suprapubic cystography, and in some well-defined cases, by retrograde uretrography. The search for any prostatic affection is not a t a speculative study as it can explain some of the symptoms presented by the patient, and enable specific therapy to be prescribed.
Adult↗
[Radiological aspects of cancer of the breast in men (author's transl)].
The radiological signs of malignant mammary tumours in men, which are similar to those observed in women, are reviewed. Several points have to be remembered, however; the common retro-mammillary location, the frequent nodular character, the skin involvement and the usual mamillary retraction, and, finally, the absence of characteristic microcalcifications. The interest of mammography to rate T in the TNM classification is also mentioned.
Adenocarcinoma↗