Single testicular metastasis mimicking primary testicular neoplasm: a rare manifestation of prostate cancer

Abstract

The incidence of secondary testicular tumors ranges from 0.02 to 2.5% among autopsies in general. With the exception of leukemias and lymphomas, prostate cancer is the most common primary site. It is diagnosed in autopsies or incidentally, following therapeutic orchiectomies in more advanced stages of the disease. In the present report, we show a case of testicular metastasis derived from prostate neoplasm whose clinical presentation as a single metastasis was similar to a primary testicular neoplasm. The diagnosis was evidenced after orchiectomy by histological examination and immunohistochemical tests.

Rare Case of Gastrointestinal Stromal Tumor Presenting with Scrotal Metastasis

“…Most commonly they originate from testicular, renal, prostate and gastrointestinal primary tumors [2]. Postulated mechanisms of spread include lymphatic spread, retrograde extension through the vas deferens or via retrograde venous embolism [3,4]. The processus vaginalis may also be a route of metastasis.…”

Sonographic Features of a Metastatic Extratesticular Gastrointestinal Stromal Tumor

“…These include retrograde extension through the vas deferens, through its lumen, through the lymphatic channels in its wall, or as transperitoneal seeding along a patent tunica vaginalis. 9,10 Disseminated gastrointestinal carcinoma and spermatic cord or tunica vaginalis metastases accompanied by a hydrocele have been previously reported. 11,12 Sonography is the primary imaging method for scrotal abnormalities, and it has reported accuracy of 95% to 100% for distinguishing intratesticular from extratesticular lesions.…”