SUMMARY X. Pis a rare autosomal recessive genodermatosis characteriseJ by photophohia, severe solar sensitivity, cutaneous pigmentary changes, xerosis and early Jevdopment of mucocutaneous and ocular cancer particularly in sun exposeJ skin. Tumors whichinclude solar keratosis, cutaneous horn, keratoachanthoma, squamous and basal cell carcinoma, malignant melanoma and angioma may developeJ in...

BACKGROUND Infundibulocystic basal cell carcinoma is a recently described distinctive clinicopathologic variant of basal cell carcinoma. Histopathologic differential diagnosis among infundibulocystic basal cell carcinoma, trichoepithelioma, and basaloid follicular hamartoma has generated controversy in the literature. OBSERVATIONS Members of 2 families with multiple infundibulocystic basal ce...

Basal cell carcinoma is the most common skin cancer. Myoepithelial cells are specialized epithelial cells. Basal cell carcinoma with myoepithelial differentiation is a rare tumor. A 71-year-old man with a basal cell carcinoma with myoepithelial differentiation that presented as an asymptomatic red papule of two months duration on his forehead is described. Including the reported patient, this v...