Uncommon case of metastatic prostate cancer developing cutaneous metastasis

Abstract

We report a case of a man in his early 70s with a known history of prostate adenocarcinoma who presented with an undiagnosed skin lesion on his right lower lateral neck 6 years after his metastatic cancer diagnosis. The painless lesion was pink, lobulated and soft. The differential diagnosis included both primary and metastatic tumours. On resection, the histology and immunohistochemical profile of the lesion were consistent with metastatic prostate cancer. He has been managed with multiple lines of therapy since then due to progressive disease. In the 18 months, since his resection, however, he has had no clinical evidence of recurrent cutaneous metastases.