Cutaneous meningioma underlying congenital localized hypertrichosis.
A 28-year-old man had a circumscribed hypertrichotic area on the left lumbar region since birth. A biopsy specimen showed numerous normal-appearing hair follicles and arrector pili muscles. In the subcutaneous layer a mass of dense collagenous connective tissue formed the background in which ill-defined foci of meningothelial cells in nests and pseudovascular spaces were seen. Collagenous structures (pseudopsammoma bodies), some of which showed calcification (psammoma bodies), were also seen. A diagnosis of cutaneous meningioma was made.
Peñas
P F
PF
Department of Dermatology, Hospital de la Princesa, Universidad Autónoma, Madrid, Spain.
Jones-Caballero
M
M
Amigo
A
A
Aragüés
M
M
García-Diéz
A
A
D000328:Adult; D000951:Antigens, Neoplasm / Q000032:analysis; D006801:Humans; D006983:Hypertrichosis / Q000151:congenital* / Q000473:pathology; D008297:Male; D008562:Membrane Glycoproteins / Q000032:analysis; D008579:Meningioma / Q000473:pathology*; D018396:Mucin-1; D012878:Skin Neoplasms / Q000473:pathology*; D014746:Vimentin / Q000032:analysis
D000951:Antigens, Neoplasm; D008562:Membrane Glycoproteins; D018396:Mucin-1; D014746:Vimentin