Definition: A malignant skin neoplasm that seldom metastasizes but has potentialities for local invasion and destruction. Clinically it is divided into types: nodular, cicatricial, morphaic, and erythematoid (pagetoid). They develop on hair-bearing skin, most commonly on sun-exposed areas. Approximately 85% are found on the head and neck area and the remaining 15% on the trunk and limbs. (From DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1471)
/blood supply /chem /second /secret /ultrastruct permitted; coord IM with probably SKIN NEOPLASMS (IM); X ref RODENT ULCER: do not coord with ULCER
ExamplesBasal Cell Nevus Syndrome