title: Basal cell carcinoma with matrical differentiation. Matrical carcinoma.
abstract: Three unusual cases of basal cell carcinoma showing matrical differentiation as evidenced by the focal presence of "shadow cells" within basaloid islands are described. The term basal cell tumor with matrical differentiation seems to be appropriate for this type of tumor. Its differentiation from other tumors, particularly malignant pilomatricoma, is also discussed.
authors.affiliation: Institute of Dermatology, University of Turin, Italy.
authors.forename: F G
authors.initials: FG
authors.lastname: Aloi
authors.forename: A
authors.initials: A
authors.lastname: Molinero
authors.forename: M
authors.initials: M
authors.lastname: Pippione
mesh_terms: D000368:Aged; D002280:Basal Cell Carcinoma / Q000145:classification / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012878:Skin Neoplasms / Q000145:classification / Q000473:pathology*