title: Schwannoma of the lip: case report and review of the literature.
abstract: Schwannomas of the lip are rare, benign neoplasms which vary in size. The diagnosis is typically made at the time of surgery following biopsy and surgical resection is the mainstay of treatment. We present one case of lip schwannoma: the patient was 25-year-old and he has presented to otorhinolaryngologist for a non-dolorous tumor on the mucosal side of his inferior lip, which was increasing in size for the last six months. The tumor had a superficial ulceration and infection. Initially it was suspected to be a papilloma. The tumor was radically removed, and the sections were stained with Hematoxylin-Eosin. The tumor was encapsulated and showed two different pattern of growth. Antoni A areas displayed spindle cells closely packed together with palisading of nuclei. Verocay bodies, which were presented in Antoni A areas, are whorled formations of palisading tumor cells. The cells of neoplasm were monotone. Only few spindle cells were moderately pleomorphic, but mitotic figures were unusual. In addition, immunohistochemical labeling was performed for S-100 protein, vimentin, GFAP and NSE and confirmed the diagnosis. This report describes a case of lip schwannoma, which was correctly diagnosed by routine staining and confirmed by immunohistochemical staining for S-100 protein, vimentin, GFAP and NSE.
authors.affiliation: Department of Histology, Victor Babeş University of Medicine and Pharmacy, Timişoara, Romania. flaviabaderca@yahoo.com
authors.forename: Flavia
authors.initials: F
authors.lastname: Baderca
authors.forename: Silvia
authors.initials: S
authors.lastname: Cojocaru
authors.forename: Elena
authors.initials: E
authors.lastname: Lazăr
authors.forename: Codruţa
authors.initials: C
authors.lastname: Lăzureanu
authors.forename: Alexandra
authors.initials: A
authors.lastname: Faur
authors.forename: Rodica
authors.initials: R
authors.lastname: Lighezan
authors.forename: Aurora
authors.initials: A
authors.lastname: Alexa
authors.forename: M
authors.initials: M
authors.lastname: Raica
authors.forename: Mariana
authors.initials: M
authors.lastname: Vălean
authors.forename: N
authors.initials: N
authors.lastname: Balica