Metastatic cutaneous carcinoma
Cutaneous metastases usually indicate a very poor prognosis, with an approximate 75% one-year mortality rate. Patients may be any age but are typically older adults. The interval between detection of the primary tumor and development of cutaneous metastases may be on the order of years, or skin metastases may be the first manifestation of an internal malignancy.
In addition to the skin lesion(s), patients with previously undiagnosed cancer may also notice a palpable mass, pallor, or weight loss. A personal history of previous carcinoma should raise the index of suspicion for a cutaneous metastasis.
Related topic: subungual metastases
C79.2 – Secondary malignant neoplasm of skin
94579000 – Secondary malignant neoplasm of skin
Differential Diagnosis & Pitfalls