Schwannoma in the lower lip mucosa: unexpected diagnosis.
Schwannoma is a benign tumor arising from nerve-sheath Schwann cells. When it affects the mouth, the lips are rarely involved. A MEDLINE search in the English literature from 1969 to 2009 revealed only 17 documented cases of schwannomas of the lip. This report describes the unusual case of a 52-year-old man who developed a schwannoma of the lower lip. Histopathologic examination and immunohistochemical staining studies were performed. Although rare, schwannoma should be considered in the differential diagnosis of any nodule or mass in the oral mucosa.
Cardoso
Camila Lopes
CL
Department of Stomatology, Bauru Dental School, University of Sao Paulo, Sao Paulo, Brazil. cardoso_lopes@yahoo.com.br
Tolentino
Elen de Souza
Ede S
Capelozza
Ana Lucia Alvares
AL
Consolaro
Alberto
A
D018952:Antigens, CD34 / Q000032:analysis; D002467:Cell Nucleus / Q000648:ultrastructure; D003937:Diagnosis, Differential; D006801:Humans; D008048:Lip Neoplasms / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D009061:Mouth Mucosa / Q000473:pathology; D009442:Neurilemmoma / Q000175:diagnosis*; D009418:S100 Proteins / Q000032:analysis
D018952:Antigens, CD34; D009418:S100 Proteins