Multiple self-healing squamous epithelioma (also known as Ferguson-Smith disease (FSD)) is a rare inherited skin cancer syndrome characterized by the development of multiple locally invasive skin tumors resembling keratoacanthomas of the face and limbs which usually heal spontaneously after several months leaving pitted scars. The disease is Monarch Disease Ontology id MONDO_0007566 (multiple self-healing squamous epithelioma). Also known as: Ferguson-Smith disease, Ferguson-Smith syndrome, Ferguson-Smith tumor, Ferguson-Smith tumour, MSSE, familial primary self-healing squamous epithelioma of the skin, Ferguson-Smith type, multiple keratoacanthoma, Ferguson-Smith type, multiple self healing epithelioma of Ferguson-Smith.