Penile Mondor's disease in a patient treated with radical chemoradiation for anal cancer

Abstract

Penile Mondor's disease is a rare condition characterized by sclerosing thrombophlebitis of the superficial dorsal penile vein. Usually its causes are benign, but it is also evident in cancer patients. We report the case of a 62-year-old man with a cT4 anal cancer (infiltration of corpora spongiosa and penile bulb), associated with extensive loco-regional lymphadenopathy, who developed painful lumps in the midline of the anterior penile surface while receiving radical chemoradiotherapy. Physical examination revealed two palpable cord-like swellings located 2 cm from the pubic symphysis. Color Doppler ultrasound established the diagnosis of Mondor's disease. The patient was successfully managed with non-steroidal anti-inflammatory drugs. The causative factors were pelvic malignancy and radiotherapy. The diagnosis was challenging since Mondor's disease is a rare condition and the differential diagnosis included malignancy progression. This is the first case report describing penile Mondor's disease in a patient with anal cancer under chemoradiotherapy.

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