No abstract

Malignant transformation of seborrheic keratoses, although rare, appears to occur more frequently in the elderly on the head and neck. Because this change is not necessarily accompanied by clinically discernable changes, more careful scrutiny of such lesions may be of therapeutic rather than cosmetic significance in this population.

No abstract

An unusual variant of malignant pilomatrixoma displaying melanization of epithelial elements is described. Melanization is a rare event even in the benign form of this adnexal neoplasm. Previously reported cases of malignant pilomatrixoma are reviewed; none containing pigment have been previously reported to our knowledge. Possible etiologies for lack of pigment in most benign and malignant pilomatrixoma are discussed.

Crohn's disease of the vulva is a rare disease, only eight cases having been described in the literature (Parks, Morson & Pegum, 1965; Mountain, 1970; Ansell & Hogbin, 1973; Devroede et al., 1975; Kao, Paulson & Askin, 1975; Levine, Barton & Grier, 1982). Two additional cases are presented, one of whom is the sixth reported with metastatic Crohn's disease of the vulva.