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Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Localized amyloidosis of the uro-genital tract is uncommon. It often simulates a neoplastic process. We describe our experience with three cases of localized amyloid of the bladder and one each of the ureter, prostate and corpora spongiosa.
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PMID:Localized amyloidosis of the genito-urinary tract. 878 4

Amyloidosis of the genito-urinary tract is uncommon. We report 8 cases, often misdiagnosed as a neoplastic process (6/8). Amyloidosis was localized in the bladder (3 cases), in the ureter (1 case) and in the prostate and/or seminal vesicles (4 cases). The amyloid protein was characterized in 7 cases by immunohistochemistry. Among the bladder and ureter amyloidosis, 2 cases were classified as AL lambda amyloidosis and one case as AA amyloidosis in a patient with long history of chronic arthritis. In the fourth case, the deposits could not be identified. Nevertheless an AL amyloidosis might be suggested. Two cases of prostate and/or seminal vesicles amyloidosis were stained with an anti-B2M antibody, in hemodialyzed patients. The 2 others, positive with the anti-Transthyretina antibody, were classified as senile amyloidosis. This small series illustrated the heterogeneous pathogenic types of amyloidosis in the urogenital tract and emphasized the interest of immunohistochemistry to identify the chemical composition of these deposits.
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PMID:[Urogenital amyloidosis: clinico-pathological study of 8 cases]. 1061 5

Access to the kidney and technical performance of nephrectomy should be related to the stage of the disease and degree of pathological process development (I. Viktorov 1983, S. Lambrev and T. Andreev 1961, T. Patrashkov 1982, F. S. Judy et al 1995). Advanced pathoanatomical changes in the kidney and pararenal space greatly interfere with the operation, especially in the event of adhesions to peritoneum and contiguous tissues (N. A. Lopatkina et al 1986, N. Minkov 1987, T. Patrashkov and H. Kumanov 1988). In the authors' reports presented are analyzed 388 patients nephrectomized in the University Hospital "Alexandrovska", covering the period 1990 through 1995. All updated methods are used in diagnosing. The commonest intraoperative complications recorded in a series of 188 nephrectomies (48.45%) include: 1. Pus collections in the kidney--88 cases (46.80%). 2. Opening of peritoneum--64 (34.04%). 3. Decompressive puncture of the kidney--15 (7.97%). 4. Neoplastic masses escaping from the renal parenchyma into the operative field--7 (3.72%). 5. Opening of pleura--5 (2.66%). 6. Purposeful opening of the tumor itself for decompression--3 (1.95%). 7. Kidney removal gives rise to diffuse bleeding necessitating inserting a tampon for hemorrhage control--2 (1.06%). 8. Splenectomy--1 (0.53%). 9. Because of advanced neoplastic process only biopsy is taken--1 (0.53%). 10. Hemicolectomy--1 (0.53%). 11. Injury to v cava inferior--1 (0.53%). As shown by the experience gained, nephrectomy is a technically difficult operation, particularly in case of altered topoanatomical interrelations during secondary interventions on the kidney and ureter, or in case of concomitant pyelonephritis. Intraoperative complications are not life endangering provided treatment is undertaken in opportune time.
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PMID:[The most common complications associated with nephrectomy]. 1119 25

Localized urinary tract amyloidosis (UTA) is a rare disease that mimics neoplasia clinically, cystoscopically, and radiologically. We report eleven cases of isolated UTA from the urinary bladder (n=7) and upper urinary tract including the ureter (n=2) and renal pelvis (n=2). All cases clinically presented as mass lesions prior to histologic examination and clinically suggested a neoplastic process. The amyloid composition in most cases was mixed Kappa and Lambda light chains. All cases were cured after surgical excision except one case which was diagnosed as plasmacytosis/plasmacytoma six months later. Localized amyloidosis of the urinary tract usually has a benign clinical course and simple resection is recommended after systemic disease is ruled out.
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PMID:Primary localized amyloidosis of the urinary tract frequently mimics neoplasia: a clinicopathologic analysis of 11 cases. 2537 7

Amyloid of the ureter is a rare disease with less than 25 cases reported in the literature. Despite being rare, it remains an important entity as it is typically confused with a primary neoplastic process of the urinary system. We report a case of a 68-year-old male with a history of cutaneous amyloid with late presentation of bilateral ureteral involvement.
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PMID:Amyloid Deposition of the Bilateral Ureters in a Patient With Chronic Systemic AL Amyloidosis. 3286 13