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

Fibroinflammatory disorders constitute heterogeneous clinical conditions whose cause and pathogenesis are largely unknown. Inflammatory pseudotumor has been applied in a generic sense to several of these disorders, which present as a mass displacing surrounding anatomic structures or leading to organ dysfunction secondary to compressive growth around the ureter(s), common bile duct, or great vessels in the mediastinum. The fibrosclerosing disorders of retroperitoneal fibrosis, sclerosing mediastinitis, sclerosing cholangitis, orbital pseudotumor, and Riedel thyroiditis are seemingly related in a clinical sense because there are well-documented cases of patients with two or more of these conditions and reports of these disorders presenting in family members. Although the pathogenesis of the fibrosclerotic disorders has not been elucidated, autoimmunity in the context of an established collagen vascular disease or the setting of inflammatory periaortitis in retroperitoneal fibrosis has been one suggested mechanism. In the course of the diagnostic evaluation of an individual with a suspected fibrosclerotic disorder, it is imperative to exclude an underlying infection or malignancy. This caveat is especially relevant to sclerosing mediastinitis as a presentation of histoplasmosis or to retroperitoneal fibrosis secondary to a sclerosing large cell lymphoma. Sclerosing mesenteritis has some clinical and pathological overlap with the fibrosclerotic disorders, but its nosologic and pathogenetic relationship is uncertain at this time. There are several other fibroinflammatory processes, such as focal myositis, inflammatory fibroid polyp of the gastrointestinal tract, calcifying fibrous pseudotumor, and sclerosing peritonitis, which are probably unrelated to inflammatory myofibroblastic tumor or the primary fibrosclerotic disorders.
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PMID:Idiopathic fibrosclerotic disorders and other inflammatory pseudotumors. 960 7

An 80-year-old woman was referred to our hospital because of irregular genital bleeding. An abnormal mass was found in the uterine cervix, and diagnosed as non-Hodgkin's lymphoma, diffuse large B cell type. Soon after admission, the patient became anuric and was given a diagnosis of acute renal failure due to obstruction of the ureter. She was immediately placed on dose-reduced CHOP and radiotherapy of 15 Gy. As a result, not only did the malignant lymphoma go into remission, but diminished renal function was alleviated. Because malignant lymphoma of the uterus is extremely rare, it exact biocharacteristics are not well understood. We are unaware of any previous report concerning uterine lymphoma complicated by renal failure.
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PMID:[Primary non-Hodgkin's lymphoma of the uterine cervix complicated by acute renal failure due to ureter obstruction]. 969 77

We report the case of a man in which a Hodgkin's lymphoma involved the ureter as the very first clinical situs of the disease. Ureteral involvement in lymphomas is very rare (0.86%-7% and 1%-16%, found in two studies, respectively, of cases of patients with lymphoma examined post mortem) and when it does occur it is secondary to renal involvement or retroperitoneal adenopathies. It is by all means exceptional as an isolated situs of disease. Those cases reported in the literature as presenting lymphomatous involvement of the ureter have always been diagnosed as Non-Hodgkin's lymphomas.
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PMID:Hodgkin's lymphoma: an isolated case of involvement of the ureter. 1010 60

We report the first documented case of undifferentiated carcinoma of the renal pelvis with a prominent lymphoid stroma (lymphoepithelioma-like carcinoma [LELC]). LELCs are morphologically identical to nasopharyngeal carcinoma and are rarely seen in the urinary tract, with only isolated cases involving the urinary bladder and ureter. The tumor was composed entirely of large pale staining malignant epithelial cells with ill-defined borders arranged in syncytial sheets separated by mainly reactive lymphocytes, occasional plasma cells and histiocytes. Tumor cells were immunoreactive to cytokeratin and were negative for leukocyte common antigen. Awareness of LELC is important, as it should be distinguished from lymphoma or inflammatory lesions including, xanthogranulomatous pyelonephritis.
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PMID:Lymphoepithelioma-like carcinoma of the renal pelvis. 1064 22

Malignant tumors of the small bowel are usually associated with digestive and general symptoms. We report the case of a 26-year-old patient who presented with right lumbar pain and right testicular pain. Final diagnosis was lymphoma of the terminal ileum involving the right pelvic ureter and the right vas deferens. We discuss frequency and mechanisms of this very unusual extension of malignant small bowel tumors.
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PMID:[Urogenital expression of a tumor of the terminal ileum]. 1259 75

Primary uterine lymphoma is a rare gynecologic cancer. Usually it involves rather the cervix than the uterine corpus and most of them are B-cell lymphomas. We describe a case of a 43-year old, asymptomatic patient, arrived observed for ureter dilatation due to a pelvic mass diagnosed by urography. The history of the patient, the presurgical clinical and radiological findings did not reveal any sign of uterine lymphoma. These difficulties show that at present it is not possible to make any prevention for this kind of cancer. The diagnosis of lymphoma was done at frozen section during surgery, but the final diagnosis is reached after two weeks. The patient underwent a debulking surgery of the mass, ureter cleaning with introduction of ureteral stent and a node sampling was done. The correct staging and the surgical and/or medical management of this cancer (not yet standardized) are the most important factors to improve the survival of these patients.
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PMID:[Primary lymphoma of the uterus. A case report]. 1259 47

Non urotelial malignant neoplasm of the ureter has been rarely described, usually arising from muscular, vascular and nervous tissue. Primary lymphoma of the ureter is an uncommon finding; we report a case of primary Non Hodgkin Lymphoma of the ureter in young woman.
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PMID:Non Hodgkin lymphoma of the ureter: a rare disease. 1569 36

We report a case of malignant lymphoma (ML) of the ureter. A 71-year-old man was admitted to our hospital with the chief complaint of macroscopic hematuria. IVP showed the dilation of left ureter and renal pelvis. Retrograde pyelography showed a 2cm filling defect in the right middle ureter. From the data given, a right ureteral tumor was suspected, and we performed tumor biopsy under an ureteral scope. Since it was diagnosed not as transitional cell carcinoma (TCC) of ureter but as ML with strong inflammation, partial ureterectomy and uretero-uretero anastomosis were done. Histological diagnosis was B cell follicular center lymphoma. Because Ga-scintigraphy revealed no evidence of other involement, it was diagnosed as ML originating from ureter. ML secondarily invading the urinary tract organs is commonly found, but ML originating from the urinary tract is rare. Especially, in regards to ML originating from ureter, only 16 cases have been reported in Japan.
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PMID:[Malignant lymphoma of the ureter: a case report]. 1591 88

Computed tomography (CT) of an 87-year-old man who presented to the emergency department with chest pain after a motor vehicle collision demonstrated multiple broken ribs and a thoracic periaortic soft tissue mass which was high density on precontrast images and enhanced postcontrast. The scan also demonstrated a mass encircling the left ureter and masses in the axilla and pelvis. The enhancement of the periaortic lesion and the presence of the additional soft tissue masses suggested lymphoma as opposed to intramural hematoma (IMH). The diagnosis of follicular B-cell lymphoma was rapidly confirmed with fluorodeoxyglucose-positron emission tomography/CT and excisional biopsy of the axillary lymph node. While this is an atypical presentation, lymphoma and other extravascular pathology must be considered in the evaluation of a periaortic high attenuation mass seen on CT.
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PMID:Periaortic lymphoma as a mimic of posttraumatic intramural hematoma. 1689 55

Rupture of the urinary collecting system associated with peripelvic extravasation of the urine is an unusual condition and commonly associated with obstructing calculus. We report a patient, recently given chemotherapy due to lymphoma, with acute abdomen symptoms. He had a renal pelvis rupture with perirenal extravasation of urine, an uncommon condition due to a stone in the ureter. Diagnosis was suspected on serial ultrasonography, and confirmed by computed tomograhy. Diagnosis, follow-up, and therapeutic approach are discussed.
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PMID:Spontaneous rupture of the renal pelvis caused by calculus: a case report. 1769 61


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