We report a 69-year-old man with disseminated superficial actinic porokeratosis (DSAP) who developed a hyperkeratotic lesion on the distal third of the right forearm with the characteristic histopathological findings of squamous cell carcinoma and DSAP. A review of the literature revealed only four similar cases.

The inflammatory metastatic carcinoma is a rare clinical entity, histologically characterized by lymphatic dermal invasion by neoplastic cells. We report three cases of inflammatory metastatic carcinoma, two of them secondary to a breast carcinoma, and the third secondary to a colon adenocarcinoma.

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