Spectrum of renal involvement in hematolymphoid neoplasms: Renal biopsy findings of 12 cases

• Main Authors: M Vankalakunti, A Rohan, S Vishwanath, S Rampure, R Bonu, K Babu, H S Ballal
• Format: Article
• Language: English
• Published: Wolters Kluwer Medknow Publications 2015-01-01
• Series: Indian Journal of Nephrology
• Subjects: Hematolymphoid malignancy; intravascular lymphoma; lymphoma infiltration; paraneoplastic glomerulopathy; renal biopsy
• Online Access: http://www.indianjnephrol.org/article.asp?issn=0971-4065;year=2015;volume=25;issue=4;spage=201;epage=205;aulast=Vankalakunti
• ISSN: 0971-4065; 1998-3662

Spectrum of causes for renal dysfunction in patients with hematolymphoid malignancy (excluding plasma cell dyscrasia) is varied. A retrospective evaluation of "native" renal biopsies referred to our institute during the period from January 2010 to December 2013 revealed 12 cases. Age ranged between 7 and 69 (median 54.5) years. All patients were males. The neoplasms included non-Hodgkin lymphoma, chronic lymphocytic leukemia, acute lymphoblastic leukemia, Burkitt′s lymphoma, intravascular lymphoma, Hodgkin lymphoma and chronic myeloid leukemia. Proteinuria was noted in 66% of the patients (nephrotic range in 5, subnephrotic range in 3). Renal insufficiency was noted in 100% patients. Malignancy-related kidney injury was noted in 75% of the cases. Renal histology showed lymphomatous infiltration (8), membranoproliferative glomerulonephritis (MPGN) (3), intracapillary monoclonal deposit disease (1) and intravascular lymphoma (1). Distribution of lymphomatous infiltration was diffuse in 50% and focal in 50%. We observed that renal dysfunction was predominantly a direct effect, that is, lymphomatous invasion. Paraneoplastic glomerulopathic changes occur in the form of MPGN. Proteinuria of >2 g/day correlated with glomerular disease.