A 33-year-old male complained of poor vision and visited the ophthalmology department of our hospital. Right iridoncus suspected as a metastatic nodule, was found. A systemic examination was done. Abdominal computed tomographic (CT) scan showed an enhanced mass in the right scrotum, 15 mm in diameter and enlargement of iliac lymph nodes. Chest CT scan demonstrated bilateral enlargement of mediastinal lymph nodes and enlargement of lymph nodes above the collarbone. Since @entity706 or @entity5 was suspected, right orchiectomy was planned. A hard and nodular mass at the head of the epididymis, completely separated from the testis, was recognized. Only open biopsy was done, because no @entity5 was found by the intraoperative biopsy. Pathological findings of the epididymal tissue revealed @entity1149 . @entity370 was diagnosed based on pathological findings and systemic evaluations. @entity134 ocular instillation therapy was started. To the best of our knowledge, this is the 18th report of @entity370 in Japan.

[Epididymal XXXX : a case report].

@entity706 :: ('MESH:D008223', 'Disease') :: ['malignant lymphoma'] @entity5 :: ('MESH:D009369', 'Disease') :: ['malignancy', 'testicular malignancy'] @entity1149 :: ('MESH:D002289', 'Disease') :: ['non-caseating epithelioid cell granulomas'] @entity134 :: ('CHEBI:35341', 'Chemical') :: ['Steroid'] @entity370 :: ('MESH:D012507', 'Disease') :: ['epididymis sarcoidosis', 'Sarcoidosis']
@entity370 :: (MESH:D012507,Disease) :: ['sarcoidosis']
