Gastric signet ring cell carcinoma presenting An erysipelas-like cutaneous metastasis of the abdominal skin

A 71-year-old patient presented with diffuse and poorly circumscribed erythematous plaques of the abdominal skin, present for 5 months. Histology revealed a diffuse infiltration of the entire dermis with cytokeratin-positive signet-ring-cells. Subsequently, an extensive search for a primary adenocarcinoma uncovered a locally advanced signet-ring-cell gastric carcinoma. There were no metastases to other organs. This case shows the unusual clinical-diagnostic sequence of a patient with a signet-ring-cell-carcinoma of the stomach presenting with an erysipelas-like cutaneous metastasis of the abdominal skin.