Rare case of gastrointestinal stromal tumor presenting with scrotal metastasis.

While gastrointestinal stromal tumors frequently metastasize, the scrotum is an extremely rare site of involvement. This case is of a 48-year-old male who, having undergone debulking surgery for metastatic gastrointestinal stromal tumor (GIST) of the small intestine 2 years ago, presented with bilateral scrotal swelling. Ultrasound showed hypoechoic mass lesions surrounding the testis and epididymis bilaterally with extension into the spermatic cord and biopsy established a diagnosis of metastatic GIST of the scrotum. As the processus vaginalis is an extension of the peritoneal cavity, we postulate that it may serve a route of spread in malignancies that involve the peritoneal cavity, as in this case.