Priapism secondary to penile metastasis of rectal cancer.

Metastatic penile carcinoma is rare and usually originates from genitourinary tumors. The presenting symptoms or signs have been described as nonspecific except for priapism. Rectal adenocarcinoma is a very unusual source of metastatic penile carcinoma. We report a case of metastatic penile carcinoma that originated from the rectum. Symptomatic improvement occurred with palliative radiotherapy.

Priapism due to sacrococcygeal chordoma metastasis treated with radiation therapy.

We are reporting the first case of priapism due to a sacrococcygeal chordoma metastasis treated with radiation therapy as palliative treatment.

A clinical case report of priapism treated with external RT.

The aim of this short communication is to present an extremely uncommon case of penile metastases from rectal adenocarcinoma treated with an external beam radiotherapy technique. A 76-year-old man affected by very painful priapism from penile metastases was treated with radiotherapy (30 Gy) for symptom relief. In the course of the radiotherapy treatment the patient reported gradual and continuous pain reduction. One month after the end of radiotherapy both the priapism and the pain had disappeared. Although the long-term prognosis remains poor, good quality of life was achieved in this patient.

Metastasis to the penis from malignant melanoma: case report and review of the literature.

A case of metastatic malignant melanoma to the shaft of the penis is described and the literature reviewed to collate the incidence of primary sites which metastasize to the penis. Less than 260 cases of metastasis to the penis have been reported. Of these, 76% are from genitourinary primary sites and 17% are from gastrointestinal primary sites but only one case of metastatic melanoma to the penis has been previously reported. The described case presented with painful priapism while receiving combination chemotherapy for metastatic disease. A CT scan demonstrated a deposit in the left corpora cavernosa and needle aspiration cytology of a plaque attached to the shaft confirmed malignant melanoma cells. Palliation of the painful priapism was achieved by treatment with radiotherapy using large doses per fraction. Retrograde venous or lymphatic spread may have been the cause of a metastasis at this site. Prognosis is very poor.

[A case of priapism successfully managed by local irradiation].

A 42-year-old man with priapism is reported. The condition did not improve by cavernous body irrigation with heparin, intravenous administration of anticoagulant, or various surgical shunt operations. However, the condition improved after local radiation therapy: a total dose of 6Gy, 1.5 Gy daily for 4 days, was given to a site 24 cm x 24 cm which covered the small pelvic cavity and the femoral area centering around the root of the penis. Improvement of the condition became evident from Day 3 of radiation therapy. For about 1 year since then the patient has been entirely free of recurrence.