Isolated tuberculous epididymitis presenting as a painless scrotal tumor.

Genitourinary tuberculosis, the second most common extrapulmonary tuberculosis (TB), is very difficult to diagnose unless one maintains a high index of suspicion. Isolated tuberculous epididymitis (ITE), defined as tuberculous epididymitis without clinical evidence of either renal or prostate involvement, is a rare entity among genitourinary tuberculosis. When diagnosed correctly, ITE can be cured with anti-TB medications. However, patients with poor response to medical treatment may require surgery. Here, we report a 20-year-old man who presented with a slow-growing painless scrotal tumor for 2 months, with the initial workup suspicious for a right paratesticular tumor. Surgical resection of the tumor was therefore scheduled. However, severe pain and redness over the patient's right hemi-scrotum were noted on the day of surgery. A repeat scrotal ultrasound was performed that revealed findings suggesting a chronic inflammatory process rather than a malignancy. Frozen section of the lesion confirmed the ultrasonographic findings, and the pathology established the diagnosis of ITE. The patient remained on anti-TB therapy postoperatively for 6 months and had an excellent outcome.