Case report: Management of infiltrative basosquamous carcinoma of the sternum

Basosquamous carcinoma (BSC) is a rare cutaneous cancer defined as a basal-cell carcinoma that has differentiated into a squamous-cell carcinoma. It is aggressive and infiltrative, and known for its multiple recurrences and risk for metastasis. This article describes the case of a 78-year-old man who presented with a several-year history of an infiltrative BSC of his chest-wall invading into his sternum. He was subsequently treated surgically with a chest-wall wide-local excision and sub-total sternectomy, reconstructed with titanium plates and a musculocutaneous anterolateral thigh free-flap. This case highlights a surgical approach to advanced chest-wall BSC. •Basosquamous carcinoma (BSC) is a rare cutaneous cancer defined as a basal-cell carcinoma that has differentiated into a squamous-cell carcinoma•A video postoperatively demonstrating early paradoxical movement of the flap•Multidisciplinary approach to treatment in a guideline free space•This case highlights a surgical approach to advanced chest-wall BSCC.