Waldenström Macroglobulinaemia presenting as a Perirenal Mass: a Case Report

Abstract

Perirenal masses are a rare manifestation of Waldenström macroglobulinaemia (WM). We report a 70-year-old male diagnosed with Waldenström macroglobulinaemia arising as a huge perirenal mass, which was discovered by abdominal ultrasound and computed tomography. The patient underwent ultrasound-guided aspiration biopsy and the histopathological examination showed a monoclonal lymphoplasmocitoid proliferation of B-cells arranged in a diffuse pattern. This case report shows not only the importance of image and biopsy studies, but also the good response to chemotherapy with the CHOP regimen.

Key Words:

• Waldenström macroglobulinaemia
• lymphoma
• lymphoplasmocytic lymphoma
• kidney tumour.

Additional information

Notes on contributors

S.-T. Wu

Dr. S.-T. Wu, M.D. Division of Urology Department of Surgery Tri-Service General Hospital No. 325, Cheng-Kung Rd, Sec 2 Taipei 114, Taiwan Tel.: [phone] Fax: [phone] E-mail: [email protected]