| Popis: |
A 37-year-old male presented with a 2-year history of progressive left scrotal swelling. Ultrasound showed an enlarged left testicle with heterogeneous echogenicity. Serum a-fetoprotein (AFP) and b-human chorionic gonadotropin were negative. There was no evidence of metastatic disease on computerized tomography. Left radical inguinal orchiectomy was performed. Pathological examination of the specimen revealed a 6.0 5.0 5.0 cm multicystic mass surrounded by a dense, pink/white, rubbery capsule involving the epididymis but without invasion of the tunica albuginea. The cystic lining was thick and rubbery, with focal hemorrhage and multiple shaggy papillary excrescences (fig. 1). The cysts were 0.2 to 5.0 cm and filled with thick, brown/ maroon, mucinous fluid and tan/pink, gelatinous material. Histological sections revealed predominantly serous cells with focal endometrioid differentiation (fig. 2). The cells were immunoreactive to estrogen receptor (ER), cytokeratin (CK) 7 and Wilms tumor suppressor gene (WT-1) with negative staining for |
