title: Primary testicular amyloidosis mimicking tumor in a cryptorchid testis.
abstract: We present a case of primary testicular amyloidosis mimicking tumor in a cryptorchid testis. Examination revealed the absence of a palpable testis in the left hemiscrotum. The laboratory evaluation showed azoospermia and a low testosterone level. The radiologic investigation demonstrated a heterogeneous left inguinal mass suspicious for tumor in a cryptorchid testis. After radical orchiectomy, the histologic evaluation revealed primary amyloidosis of the testis. The pathogenesis and clinical presentation of testicular amyloidosis are reviewed.
authors.affiliation: Scott Department of Urology, Baylor College of Medicine, Houston, Texas, USA.
authors.forename: Roberto
authors.initials: R
authors.lastname: Casella
authors.forename: David
authors.initials: D
authors.lastname: Nudell
authors.forename: David
authors.initials: D
authors.lastname: Cozzolino
authors.forename: Huamin
authors.initials: H
authors.lastname: Wang
authors.forename: Larry I
authors.initials: LI
authors.lastname: Lipshultz
mesh_terms: D000686:Amyloidosis / Q000150:complications / Q000473:pathology*; D001706:Biopsy; D003456:Cryptorchidism / Q000150:complications*; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009845:Oligospermia / Q000150:complications; D013733:Testicular Diseases / Q000150:complications / Q000473:pathology*; D013736:Testicular Neoplasms / Q000175:diagnosis; D013737:Testis / Q000648:ultrastructure