Background: Basosquamous carcinoma (BSC) is a rare malignancy with specific histopathological features and high metastatic potential.
Case Report: We report the case of basosquamous carcinoma in a patient presenting a widespread ulcer on the thoracic wall.
Conclusions: We suggest to give more echo to the peculiar behaviour of BSC among physicians as a first, aggressive treatment can be curative. We encourage physicians to organize multicentric clinical trials to evaluate the usefulness of sentinel node biopsy in BSC

Keywords: basosquamous carcinoma, Thoracic Wall, Thoracic Wall