BACKGROUND:

Cysts of the tunica albuginea are benign tumors with an incidence that varies from 0.3 to 0.76%. The majority of cases are classified as intratesticular and average size is 2 to 5 mm. When the cysts are very large, due to location and size, they can be misinterpreted as malignant.

CLINICAL CASE:

A 55-year-old man presented with progressive enlargement of the left testicular region of 30-year progression. Ultrasound and computed tomography studies identified a well-defined, heterogeneous cystic tumor that compressed the left testis, for which orchiectomy was performed. The anatomopathologic study confirmed a 20 x 16 cm, unilocular cyst with fluid content, located in the tunica albuginea. Microscopically, it was lined with a flat or cuboidal epithelium with no atypia. Diagnosis was a cyst of the tunica albuginea.

CONCLUSION:

Treatment of cysts of the tunica albuginea may vary according to size and symptomatology. The case presented herein is the largest cyst of the tunica albuginea to yet be reported.

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