Malignant eccrine spiradenoma: A previously unreported presentation and review of the literature

Malignant eccrine spiradenomas (MESs) are rare tumors arising from previous ly benign eccrine spiradenomas. A review of the literature reveals only 25 published reports of malignancy arising from eccrine spiradenoma and no pri or reports of an MES of the scalp, The tumors have a metastasis rate of >50 per cent in reported cases with high resultant mortality rates, We present the first case report of a single MES of the scalp, Multiple resections we re required for local control, Both magnetic resonance imaging and lymphosc intigraphy were used to assess regional spread. A review of the literature follows to include histopathology, diagnosis, and both surgical and adjuvan t therapeutic options.