Skin tumors

Most skin tumors can and do occur on the lower limbs, although some, such as papillary adenoma of the nipple and organoid nevus (nevus sebaceus of Jadassohn), are almost never seen at this site. The present discussion will be limited to selected tumors that occur most commonly on the lower extremities. It is important to recognize some neoplasms, e.g., acral-lentiginous melanoma, before they actually develop into tumors in the morphologic sense. It is also helpful to recognize that not all tumors ( i.e., nodular swellings) are neoplastic, e.g., tungiasis. To this end, pathologic examination is essential and will be emphasized in this report.