title: Palisaded Encapsulated Neuroma of the Tongue Clinically Mimicking a Pyogenic Granuloma: A Case Report and Review of Literature.
abstract: Palisaded encapsulated (solitary circumscribed) neuromas (PENs) are relatively common intraoral neurogenic tumors, which occur most frequently on the hard palate. Herein, we describe the clinicopathological characteristics of a palisaded encapsulated neuroma of the tongue. This tumor was an exophytic sessile mass measuring 0.3× 0.4 cm with rubbery consistency on the anterior one-third of the dorsum of the tongue. The tumor was excised under the impression of a pyogenic granuloma (PG). No recurrence was reported at 12 months postoperatively. Histopathological examination showed a well-circumscribed mass that composed of interlacing fascicles of spindle cells. The cells were S-100 positive. The nuclei, showing parallel orientation within the fascicles, were wavy and pointed and showed no sign of mitotic activity. Giemsa staining revealed no mast cells within the stroma.
authors.affiliation: Assistant Professor, Department of Oral and Maxillofacial Medicine, Faculty of Dentistry, Golestan University of Medical Sciences, Gorgan, Iran.
authors.forename: Nazanin
authors.initials: N
authors.lastname: Mortazavi
authors.affiliation: Oral and Maxillofacial Pathologist, Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, North Khorasan University of Medical Sciences, Bojnurd, Iran.
authors.forename: Azadeh
authors.initials: A
authors.lastname: Gholami
authors.affiliation: Assistant Professor, Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Pouyan
authors.initials: P
authors.lastname: Amini Shakib
authors.affiliation: Assistant Professor, Department of Oral and Maxillofacial Medicine, Faculty of Dentistry, Babol University of Medical Sciences, Babol, Iran.
authors.forename: Hamed
authors.initials: H
authors.lastname: Hosseinkazemi
keywords: Nerve Sheath Neoplasms; Neuroma; Pyogenic Granuloma