title: Low-grade mucosa-associated lymphoid tissue lymphoma involving the kidney: report of 3 cases and review of the literature.
abstract: Low-grade B-cell lymphoma of mucosa-associated lymphoid tissue involving the kidney is rare. We report a series of 3 cases. The first case occurred in an 83-year-old woman who presented with back pain. The second case was a 53-year-old man with a history of sarcoidosis who was found, in the course of evaluation of sarcoidosis, to have a right renal mass. The third case occurred in a 72-year-old man who had a history of periorbital mucosa-associated lymphoid tissue lymphoma and had been treated with surgery and radiation 1 year prior to this presentation. Histologically, all 3 patients showed infiltrate of uniform small-to-medium-sized lymphocytes with irregular nuclear contours and abundant cytoplasm resembling centrocytes or monocytoid lymphoid cells. The first patient received chemotherapy without complications. The second patient underwent a partial nephrectomy and was asymptomatic at the subsequent follow-up. The third patient developed a pulmonary embolism following nephrectomy, and further follow-up is not available.
authors.affiliation: Department of Pathology, Mount Sinai Medical Center, New York, NY 10029, USA.
authors.forename: Libo
authors.initials: L
authors.lastname: Qiu
authors.forename: Pamela D
authors.initials: PD
authors.lastname: Unger
authors.forename: Robert W
authors.initials: RW
authors.lastname: Dillon
authors.forename: James A
authors.initials: JA
authors.lastname: Strauchen
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000970:Antineoplastic Agents / Q000627:therapeutic use; D001416:Back Pain / Q000150:complications / Q000473:pathology; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000150:complications / Q000473:pathology* / Q000628:therapy; D018442:Lymphoma, B-Cell, Marginal Zone / Q000150:complications / Q000473:pathology* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D016609:Neoplasms, Second Primary; D009392:Nephrectomy; D012507:Sarcoidosis / Q000150:complications / Q000473:pathology; D016896:Treatment Outcome
chemical_list: D000970:Antineoplastic Agents