title: Primary renal lymphoma mimicking a subcapsular hematoma: a case report.
abstract: Primary renal lymphoma (PRL) is a rare entity with a history of controversy regarding its existence. Lymphomatous involvement of the kidney is more commonly seen secondarily to spread from an adjacent lymphomatous mass, rather than arising primarily from the kidney. PRL can mimic other renal lesions such as renal cell carcinoma, renal abscess, and metastasis; therefore, an early diagnosis is crucial to guide treatment and properly assess prognosis. We present a rare case of a 77 year-old male who presented with hematuria and PRL mimicking a subcapsular hematoma.
authors.affiliation: Department of Radiology, Madigan Army Medical Center, Tacoma, WA, USA.
authors.forename: Erik
authors.initials: E
authors.lastname: Dedekam
authors.affiliation: Department of Radiology, Madigan Army Medical Center, Tacoma, WA, USA.
authors.forename: Jess
authors.initials: J
authors.lastname: Graham
authors.affiliation: Department of Pathology, Madigan Army Medical Center, Tacoma, WA, USA.
authors.forename: Karen
authors.initials: K
authors.lastname: Strenge
authors.affiliation: Department of Radiology, Madigan Army Medical Center, Tacoma, WA, USA.
authors.forename: Andrew D
authors.initials: AD
authors.lastname: Mosier
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D006406:Hematoma / Q000175:diagnosis*; D006417:Hematuria / Q000209:etiology; D006801:Humans; D061705:Image-Guided Biopsy / Q000379:methods; D007680:Kidney Neoplasms / Q000175:diagnosis*; D018442:Lymphoma, B-Cell, Marginal Zone / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008297:Male; D049268:Positron-Emission Tomography; D015641:Radiography, Interventional; D014057:Tomography, X-Ray Computed
keywords: Primary renal lymphoma; lymphoma; non-Hodgkin lymphoma of the kidney