<unk><unk>  is an uncommon and aggressive malignant cutaneous tumor. Most are typically about 10 mm in size at presentation. This neoplasm is thought to arise from<unk><unk> s in the skin and, therefore, may originate anywhere in the body where these<unk> s are found.  Because the periocular region is rich in this type of<unk> , this region is a common site of origin. The etiology of these lesions are, in the vast majority of cases, unknown. Occasional cases may be associated with Muir-Torre syndrome.
This type of cancer usually has a poor prognosis because of a high rate of metastasis.
Sebaceous gland carcinoma
Thecoma
Sebaceoma
Pilomatricoma
Cylindroma
Trichoepithelioma
Syringoma
Nevus of Ota