Search Results
Results 601 - 650 of 1238
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Mboyo A - - 1998
A case of an unilocular renal hydatid cyst in a 10-year-old French girl without any notion of travelling in a foreign country is reported. In children affected by renal echinococcosis, clinical symptoms and physical examination are nonspecific. Among the diagnostic procedures, the role of echography in the assessment of the ...
Evans N L - - 1998
Renal malacoplakia is an uncommon condition with a variety of radiological characteristics which may initially suggest an alternative diagnosis. Three cases of renal malacoplakia were diagnosed in our hospital during a 2 year period. This apparent cluster of cases probably reflects the increased use of imaging and biopsy in the ...
Gupta R K - - 1998
In nearly 25% of patients with primary renal-cell carcinoma, metastasis is not uncommon and usually does not give rise to difficulties in diagnosis. However, its presentation as a mass in the head of the pancreas following an elapse of several years after the initial diagnosis of renal carcinoma is not ...
Glassberg K I - - 1998
PURPOSE: Classically cysts in multicystic dysplastic kidneys are described as noncommunicating. We determined the accuracy of this hypothesis by performing ex vivo intracystic contrast studies of the typical multicystic kidney and hydronephrotic form of the multicystic kidney. MATERIALS AND METHODS: We evaluated 7 multicystic dysplastic kidneys in patients between 2 ...
Stein S L - - 1998
Wegener's granulomatosis (WG) is a necrotizing granulomatous vasculitis usually affecting the upper and lower respiratory tracts and kidneys. Any organ system can be affected by the pathologic process, which remains an etiologic enigma. Limited forms of the disease are recognized in which few extrapulmonary and no renal lesions occur. Cutaneous ...
Shishikura Y - - 1998
An unusual case of cystic renal cell carcinoma in a 70-year-old Japanese male is reported. He had had a simple renal cyst removed 1 year ago. On presentation the right kidney was surrounded by multiple translucent cysts, which varied in size from 1 to 50 mm. The cyst walls were ...
Matsuki M - - 1998
Ectopic ureter draining into seminal vesicle cyst is very rare congenital anomaly, which is thought to be caused by ectopic ureteral bud arising on the mesonephric duct. It is often associated with ipsilateral renal agenesis. We experienced a case of ectopic ureter draining into seminal vesicle cyst that is associated ...
Hendry W F - - 1998
Adult polycystic kidney disease has been found in association with pathological dilatation of the seminal vesicles in six patients. These men appeared normal on clinical examination, but had azoospermia or severe oligozoospermia. They were investigated by scrotal exploration with vasography, renal and transrectal ultrasound scans (TRUS), and percutaneous puncture of ...
Sokkar S M - - 1998
The present work was conducted to investigate the possibility of inducing renal lesions in chickens subcutaneously or orally inoculated with E. coli [E. coli O1K67(B12)], Staphylococcus aureus and Actinomyces pyogenes. The strains were previously isolated from the kidneys of broilers showing different pathological lesions. The gross lesions observed in the ...
D'Andrea C C - - 1998
Thrombotic thrombocytopenic purpura (TTP) is an uncommon and potentially fatal disease that is characterized by endothelial cell abnormalities, platelet dysfunction, microangiopathic hemolysis, fever, neurological abnormalities, and renal involvement. Before the introduction of plasmapharesis in the 1970s, TTP was fatal. This case report is presented to illustrate how subtly TTP can ...
Ngai R L - - 1998
Scrotal masses in young children are often caused by hydrocoeles and hernias. When they arise from the testis, testicular tumor or orchitis, although rare in this age group, is often the diagnosis. Cystic dysplasia of the testis, a rare condition frequently associated with renal anomalies, is another possible differential diagnosis. ...
Lees G E - - 1998
Two litters of English cocker spaniels (ECSs) produced by familial nephropathy (FN) carriers were evaluated to characterize the early features of this disease. Three puppies developed FN. Proteinuria, which began when these puppies were five-to-eight months old, was the first abnormality detected. Proteinuria persisted while each puppy's growth rate slowed, ...
Hayakawa M - - 1998
PURPOSE: We compared cytokine levels in fluid from renal cysts with and without renal cell carcinoma. MATERIALS AND METHODS: Fluid was aspirated from 18 renal cysts without (benign) and 21 with renal cell carcinoma (malignant). Serum from patients with renal cell carcinoma and healthy controls was collected and cytokines were ...
Miric A - - 1998
BACKGROUND AND OBJECTIVES: Metastatic disease represents the most common neoplastic process involving bone. Recently, a small subset of cortical based metastatic lesions has been identified. We attempted to delineate the incidence, origin, location, and possible significance of these lesions within an orthopaedic patient population. METHODS: A chart and radiographic review ...
Hergesell O - - 1998
BACKGROUND: Ultrasound-guided renal biopsy with an automated spring-loaded biopsy device has become the standard method for kidney biopsy. Information on the success rate and safety of the routine use of this procedure from large series is not available. Such information is of interest for cost benefit considerations and for medicolegal ...
Gupta R K - - 1998
A case is presented in which the diagnosis of renal angiomyolipoma was made by computed tomography (CT)-guided, fine-needle aspiration cytology and the examination of a cell block. The tumor was characterized by epithelioid smooth muscle cells, blood vessels and fat in the cytologic material. The cytodiagnosis was further substantiated by ...
Sacher P - - 1998
We report two boys aged 1 year and 2 years 2 months, respectively, with cystic nephromas. Both presented with a painless abdominal mass. Computed tomography showed a homogeneous, multicystic tumor of the lower pole of the kidney in both cases with thin septa without solid parts. Macroscopically, the surface of ...
Epler G R - - 1998
Reports of the characterization and understanding of bronchiolitis obliterans organizing pneumonia (BOOP) have continued at an accelerated rate for several years. The radiographic and high-resolution CT features of BOOP continue to be documented. There have been new insights into the pathogenesis of BOOP. An animal model has been developed. Video-assisted ...
el Khader K - - 1998
In Morocco, hydatid disease is endemic and constitutes a major problem of public health. Renal echinococcal cyst ranks third after pulmonary and hepatic locations. We report a case of renal echinococcal cyst diagnosed during percutaneous nephrolithotomy which was treated endoscopically. To our knowledge, this situation has not been reported previously ...
Chalmers G W - - 1998
Tumoral calcinosis-like lesions of the foot are a pedal manifestation of end-stage renal disease. Although they are benign, they have the potential to cause significant morbidity because of their invasive nature. Following a brief description of tumoral calcinosis-like lesions, the authors provide an illustrative case presentation including radiographs, magnetic resonance ...
Dal Cin P - - 1998
Cytogenetic investigation of a metastatic lesion appearing 31 years after nephrectomy allowed for the diagnosis of a renal cell carcinoma. The der(X)t(X;1)(p11.2;q21.1) found in this case and review of the 14 other cases previously reported indicates that this chromosome lesion may characterize a specific subgroup of renal cell carcinoma, with ...
Völk M - - 1998
We report a case of ischiogluteal bursitis mimicking a soft-tissue metastasis from a renal cell carcinoma. A 66-year-old woman suffered from pain over the left buttock 6 months after she was operated on for renal cell carcinoma of the left kidney. CT of the abdomen and pelvis revealed a tumor-like ...
Brown J A - - 1998
OBJECTIVE: Benign renal cysts are commonly found in adult patients. However, giant renal cysts measuring more than 15 cm in greatest diameter or containing more than 1500 cc of fluid are rarely seen. A giant renal cyst presenting as obesity, a unique form of presentation, is described herein. METHODS/RESULTS: We ...
Work T M - - 1998
A necropsy survey of Laysan albatross, Diomedea immutabilis, chicks on Midway Atoll in June 1993, 1994, and 1995 revealed 54% (21/39), 67% (49/71), and 93% (15/16), respectively, to have enteritis as the most severe pathologic finding. The lesion was limited to the ileum, ceca, and large intestine. We were unable ...
Levy Y - - 1998
Renal involvement in antiphospholipid syndrome (APS) is increasingly reported. So far, massive proteinuria as the principal feature of primary APS (PAPS) has not been well documented. We describe 3 patients with PAPS and massive proteinuria. Renal biopsy was performed in all 3, and features consistent with membranous and focal segmental ...
García-Valtuille R - - 1998
Perineurioma is an extremely rare benign tumor of the peripheral nervous system composed exclusively of perineurial cells. Imaging findings of this tumor are non-specific and the diagnosis is based on histologic studies. We report a case of perineurioma of the kidney in a 7-year-old girl discovered incidentally during the evaluation ...
Mikaelian I - - 1998
A 33-year-old captive male golden eagle (Aquila chrysaetos) was presented for necropsy with a history of emaciation and depression. The liver was severely distorted by numerous, coalescent, poorly demarcated, white firm nodules. Upon microscopic examination, these masses were found to be infiltrative and were composed of anastomosing tubular structures lined ...
Turkeri L N - - 1998
This paper reports a rare case of cirsoid renal arteriovenous malformation (AVM) that showed radiological characteristics of a renal malignancy. Using only conventional procedures such as computerized tomography, the present case was misdiagnosed as a solid tumor mass and therefore radical nephrectomy was indicated. Angiographic analysis is expected to improve ...
Salomé F - - 1998
OBJECTIVES: To describe the features and treatment of renal lesions in von Hippel-Lindau disease (VHL) from a series of patients, to highlight important issues in the management of these lesions. MATERIALS AND METHODS: We performed a retrospective study in 7 patients with VHL who underwent surgery for renal lesions between ...
Kinoshita H - - 1998
A 16-year-old girl with renal failure was transferred to our hospital for an extensive renal examination. Computerized tomography and ultrasonography showed multiple small cysts throughout the medulla of both kidneys. Histological findings revealed tubular atrophy and dilatation and marked periglomerular fibrosis, all of which were compatible with nephronophthisis. Her development ...
van den Ouden D - - 1998
OBJECTIVE: Seminal vesicle cysts combined with ipsilateral renal agenesis represent a rare urological anomaly. We searched the literature to review the clinical presentation, diagnosis and therapeutic treatment options of this anomaly. METHODS: A pooled analysis was performed of 52 cases of seminal vesicle cysts combined with ipsilateral renal agenesis, including ...
Xie T - - 1997
Thirty cases of IgA nephropathy having been diagnosed by biopsy with kidney puncture were selected. The treatment was based on the differentiation of syndromes in traditional Chinese medicine (TCM). The disease was divided into 4 stages: the initial stage with the lesion in the lung and kidney, the stable stage ...
Moe L - - 1997
The clinical findings in German shepherd dogs with hereditary multifocal renal cystadenocarcinomas and nodular dermatofibrosis are presented. Between 1978 and 1996, 51 cases were examined. Eight cases were detected after being offered a clinical examination because the disease was present in a parent. The remaining 43 dogs were diagnosed after ...
Mordkin R M - - 1997
Sarcomatous lesions of the kidney comprise less than 2% of all primary renal malignancies. Angiosarcomas are an exquisitely infrequent histologic type in this setting and are associated with a universally poor prognosis. We report the eighth known case of primary renal angiosarcoma and review the available literature on this rare ...
Zinn H L - - 1997
Simple renal cysts are very uncommon among children. Of 50 children with AIDS that underwent computed tomography at our hospital, 4 had radiographically simple cysts. The incidence of simple renal cysts in this group of children is thus approximately 45 times that seen in normal children. To our knowledge, simple ...
Pal D K - - 1997
In the present study 1500 patients having abdominal ultrasonography were included. Unsuspected renal cysts were detected in 76 patients (5.06%). The age range was between 8 and 86 years with a maximum incidence being at 41-60 years age group. These asymptomatic cysts were observed commonly in the upper pole of ...
Wahner-Roedler D L DL Division of Area General Internal Medicine, Mayo Clinic Rochester, Minnesota 55905, - - 1997
Renal cell carcinomas are notorious for their tendency to metastasize early, often before the primary tumor has become apparent. Frequently, the initial complaint is referable to a distant metastatic lesion. Metastatic lesions have been found in almost every organ or tissue of the body. When a patient with a clinically ...
Minevich E - - 1997
PURPOSE: Conservative management of children who have unequivocal multicystic dysplastic kidney with a stable or regressive pattern of disease during close followup is well established. However, a clear diagnosis may prove difficult. We report 3 cases in which the diagnosis was particularly difficult to increase awareness of the importance of ...
Siegel C L - - 1997
OBJECTIVE: Our objective was to assess the clinical usefulness and interobserver variability of the Bosniak classification scheme for characterizing a series of pathologically proven cystic renal lesions imaged with CT. MATERIALS AND METHODS: Seventy pathologically proven cystic renal masses (38 benign, 32 malignant) in 46 patients were reviewed independently by ...
Lin H C - - 1997
A 9-year-old girl was discovered to have had a huge retroperitoneal mass causing moderate hydronephrosis and anterior displacement of the right kidney and which was found on a renal ultrasonographic examination. A series of examinations including (1)IVP, (2) abdominal computed tomography, (3) MRI and(4) incisional biopsy revealed a giant dumb-bell ...
Curry N S - - 1997
A common problem in radiologic and urologic practice today is what to do with the small or indeterminant renal mass. Whether found incidentally or sought after because of patient symptomatology, these lesions present a challenge in diagnosis and management. This article outlines the scope of the problem, illustrates representative lesions, ...
Liao S Y - - 1997
The MN/CA9 protein is a tumor-associated antigen that has been shown to have diagnostic utility in identifying cervical dysplasia and carcinoma. MN/CA9 expression is limited to very few normal tissues. We have now extended those observations to further investigate expression of the MN/CA9 protein in histological sections and fine-needle aspiration ...
Caduff R F - - 1997
A 9-month-old boy with a primary cystic lymphangioma of the right kidney is reported. The clinical and radiological features favored a malignant tumor. Histology revealed the lesion to be a lymphangioma; the diagnosis was confirmed by immunohistochemistry and chemical analysis of the intracystic fluid. Lymphangiomas of the kidney are rare ...
Hession P R - - 1997
Haematogenous metastases to the small bowel are a rare occurrence, usually from malignant melanoma or bronchogenic carcinoma. There are occasional reports of other primary tumours presenting with small bowel involvement as the first evidence of metastases. We describe a case of intraluminal jejunal metastasis from a renal cell carcinoma, occurring ...
Feather S A - - 1997
BACKGROUND: Oral-facial-digital syndrome type 1 (OFD1) is a rare disorder comprising malformations of the face, oral cavity, hands, and feet. Polycystic kidney disease (PKD) is a more recently recognized feature of the syndrome. SUBJECTS AND METHODS: We now report on the clinical, radiological and histopathological features of an OFD1 and ...
Renshaw A A - - 1997
OBJECTIVE: To evaluate the cytologic features of each subtype of renal cell carcinoma (RCC) for separating the various subtypes. STUDY DESIGN: Thirty-eight renal fine needle aspiration (FNA) specimens with surgical resection follow-up were retrospectively reviewed and classified without knowledge of the resection specimen diagnosis. These included 18 clear cell RCCs, ...
Campbell S C - - 1997
OBJECTIVES: To determine the accuracy and clinical utility of fine needle aspiration (FNA) of small, solid renal masses. METHODS: A total of 25 patients with small (less than 5.0 cm), solid, clinically localized renal masses were prospectively identified and evaluated with computed tomography guided FNA with analysis for presence of ...
Farreli J - - 1997
We present the case of a young woman who developed renal failure of unknown cause, and after 2 months of maintenance hemodialysis developed livedo reticularis, retinopathy, and peripheral sensory neuropathy. The patient was subsequently shown to have primary oxalosis type I, a rare autosomal recessive error of metabolism characterized by ...
Ahmed M - - 1997
The association between malignancy and glomerular disease has been appreciated for over three decades. Although the relationship between membranous glomerulonephritis or minimal-change nephrotic syndrome and carcinoma or lymphoma, respectively, are the most widely known, several other glomerular lesions have been described in patients with malignancy. In this article, a patient ...
Renshaw A A - - 1997
BACKGROUND: Fine-needle aspiration (FNA) of the adult kidney is an excellent diagnostic tool in the appropriate clinical setting. The indications, cytologic criteria, and therapeutic implications of renal FNA may be changing. METHODS: A review of the English language literature concerning the indications, utility, and criteria for renal FNA was performed. ...
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