A 32-year-old man form the Indian subcontinent presented to the emergency department 2 days after having been kicked in the scrotum during a football match with increasing pain and swelling of the right hemiscrotum. A firm discrete mass was noted at the lower pole of the right epididymis that was clinically inseparable from the otherwise unremarkable testicle. The right testicle was nontender and sat in a normal position with no signs of scrotal skin ecchymosis. The history suggested that the scrotal mass had been present for approximately 12 months, and a preliminary diagnosis of a haemorrhagic cyst caused by trauma was made. Initial management included scrotal support, analgesia, and a follow-up magnetic resonance imaging (MRI) scan. The MRI confirmed a 2.3 cm irregular lesion arising posterior to the lower pole of the right testis that enhanced peripherally with central necrosis and therefore could not rule out a potentially malignant lesion (). After informed consent, a scrotal exploration and epididymectomy was performed. Grossly, the specimen measured 25 mm in maximum diameter. Sectioning revealed a 20 mm yellow, partly necrotic tumour mass ().\nHistological examination (H+E) showed a central area of coagulative necrosis with surrounding reactive fibroblastic tissue and inflammation (). Irregular clusters and solid nests of viable epithelioid cells were present, partly obscured by the fibroblastic tissue reaction ().\nOn immunohistochemical staining, these epithelioid cells were positive for CAM5.2 and CK7 and also expressed the mesothelial markers calretinin and WT1 (). The H+E appearances and immunoprofile were consistent with a partly necrotic/infarcted adenomatoid tumour. No evidence of malignancy was seen. The tumour was well circumscribed and completely excised at all margins. The patient was informed of the results, reassured, and discharged from further followup.
A 35 year-old male presented with a right-sided, scrotal swelling of three days’ duration associated with acute scrotal pain of increasing severity. His past medical history was not significant and there was no history of trauma. Clinical examination revealed an enlarged, firm, tender nodule, three cm in diameter, while the contralateral testis was normal. A clinical diagnosis of torsion testis/testicular neoplasm was made. All routine investigations gave normal results. An emergency scrotal ultrasonography (USG) revealed a 2.5 cm, single, ovoid, well-defined, hypoechoic, solitary mass in the right testis. Guided aspiration was done under local anesthesia using a 10 mL syringe and a 24 gauge needle to obtain a scanty, grey-white aspirate. The smears were stained with hematoxylin-eosin (H and E), Papanicolaou, and May-Grünwald-Giemsa (MGG) stains. The smears were moderately cellular, consisting of tumor cells arranged in sheets and clusters. The cells were round to oval, having eccentric, vesicular nuclei with a fine granular chromatin along with a pale/vacuolated cytoplasm []. A cytological diagnosis of adenomatoid tumor was made. The patient underwent orchidectomy as the mass was firmly adherent to the tunica albugenia making conservative surgery unfeasible. The specimen showed the testis with a well circumscribed, encapsulated mass measuring 2.5 × 2 cm [] and its cut section was gray white. Histopathological examination (HPE) showed cuboidal to flat epithelial cells in solid cords, some lining the cystic spaces. Some of these epithelial cells showed prominent cytoplasmic vacuolation. Intervening stroma showed fibrocollagenous tissue with sparse lymphocytic infiltrates []. These features were consistent with those of an adenomatoid tumor.