Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0079731 (B-cell lymphoma)
 16,671 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The acute tumor lysis syndrome (ATLS) may be a dramatic complication of anticancer treatment. It occurs mostly in haematological malignancies and less commonly in solid tumors. Spontaneous tumor lysis syndrome (STLS) has been reported more frequently in Burkitt's lymphomas than in other haematological tumors, and exceptionally in solid tumors like small-cell lung carcinoma and germ-cell tumors. We report on the case of a patient with a diffuse large B-cell lymphoma (DLBCL) of the urinary tract involved by acute renal failure due to STLS and complicated by obstructive uropathy subsequent to neoplastic infiltration of the bladder. Hyperhydration, urine alkalinization, urate oxidase administration and continuous veno-venous haemodiafiltration (CVVHDF) permitted to control the initial renal failure and to administer chemotherapy. The patient then developed chemotherapy-induced tumor lysis syndrome (TLS) controlled by urate oxidase administration, hyperhydration and urine alkalinization. The treatment of TLS and the differences between ATLS and STLS are discussed.
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PMID:B-cell lymphoma presenting with renal failure associated to spontaneous tumor lysis syndrome and urinary tract obstruction. 1735 96

Plasmablastic lymphoma (PBL) is an aggressive diffuse large B-cell lymphoma (DLBCL) with plasmablastic features that was initially described in the oral cavity of HIV-infected individuals. PBL remains a diagnostic challenge given its close morphologic resemblance and overlapping immunophenotypic patterns to other B-cell lymphoid malignancies and plasmablastic plasma cell myeloma (PCM) with extramedullary involvement. The presence of serum monoclonal protein and radiographic evidence of lytic bone lesions favors the diagnosis of plasma cell myeloma over PBL. Distinguishing PBL from PCM is important as PBL is treated with a completely different chemotherapy regimen compared to PCM. PBL carries a guarded prognostic profile among DLBCLs with high relapse rate and poor median survival. We present a case of a 44-year-old HIV-positive man who presented with a large retroperitoneal mass associated with obstructive uropathy, sacral radiculopathy, and inferior vena caval compression. The mass was initially mistaken to be a PCM on histopathology; however, subsequent investigations revealed an extra-oral PBL with plasmacytic differentiation. To our knowledge, this will be the first case of PBL of the retroperitoneum in an HIV- and HCV-positive patient and the second one at this location in the English-language literature. In this report, key differentiating points between PBL versus PCM and newer therapeutic agents such as proteasome inhibitors have been discussed along with related review of literature.
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PMID:Plasmablastic lymphoma of the retroperitoneum in an HIV- and HCV-positive patient: hard to diagnose and harder to treat. 2256 57

Primary ureteral lymphomas are rare. We present a case of extranodal B-cell lymphoma of the ureter presenting as asymptomatic bilateral ureteral obstruction. A 34-year-old male was incidentally found to have obstructive uropathy. Imaging showed severe bilateral hydronephrosis and percutaneous nephroureteral stents were placed. Diagnostic work up did not uncover any apparent etiology to the obstruction. Histopathological analysis of the ureter excised during ureteral reimplantation revealed CD20+, CD5-, CD10- B-cell lymphoma with areas of aggressive disease. The patient received six cycles of R-CHOP chemotherapy and is currently disease free.
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PMID:Primary ureteral lymphoma presenting as bilateral obstructive uropathy. 3310 99