Leiomyomatous hamartoma of the incisive papilla.
A case of unusual hamartoma in a six-year-old otherwise healthy Brazilian girl is reported, with emphasis on histological and immunohistochemical features. A mass observed in the incisive papilla was detected whose appearance was similar to congenital epulis or fibroma. Histological findings showed interlacing fascicles of large spindle cells resembling smooth muscle cells. Immunohistochemical staining for desmin and for smooth-muscle actin was positive. The histological diagnosis was leiomyomatous hamartoma, based on clinical and microscopic observations.
Corrêa
L
L
Disciplina de Patologia Bucal, Faculdade de Odontologia, Universidade de São Paulo, Av. Prof. Lineu Prestes, 2227 São Paulo-SP-Brazil. e-lu@fo.usp.br
Lotufo
M
M
Martins
M T
MT
Sugaya
N
N
de Sousa
S C
SC
D000199:Actins / Q000032:analysis; D002648:Child; D003893:Desmin / Q000032:analysis; D003937:Diagnosis, Differential; D005260:Female; D005350:Fibroma / Q000151:congenital; D005882:Gingival Diseases / Q000473:pathology*; D005887:Gingival Neoplasms / Q000151:congenital; D006222:Hamartoma / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D009130:Muscle, Smooth / Q000473:pathology
D000199:Actins; D003893:Desmin