Clinicopathologic analysis of 7 cases of oral schwannoma and review of the literature

Santos, Pedro Paulo de Andrade; Freitas, Valéria Souza; Pinto, Leão Pereira; Freitas, Roseana de Almeida; Souza, Lélia Batista de

doi:10.1016/j.anndiagpath.2010.02.009

Cited by 43 publications

(36 citation statements)

References 21 publications

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“…Immunohistochemical analysis is essential for the diagnosis of schwannomas and a positive reaction to protein S100 is typical [8]. Pathologists classify schwannomas into 7 subtypes; classical, celluler, plexiform, cranial nerve, melanotic, degenerated, and granular cell schwannoma [9].…”

Section: Discussionmentioning

confidence: 99%

Cystic schwannoma of the axillary region: imaging findings of a rare disease. Case report.

et al. 2015

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Schwannomas are well capsulated, benign, and slowly growing tumors which originate from Schwann cells of peripheral nerve sheath. The incidence of schwannomas in the axillary region is not common. This rarity causes misdiagnosis at the radiological evaluation. In this case we present the imaging and histopathological findings of a cystic schwannoma located in the axillary fossa of a 47-year-old female patient mimicking complex cyst, lymphadenopathy or hydatid cyst in radiological evaluation. Although lymphadenopathy, lymphatic malformation, lipoma, cyst, hidradenitis suppurativa or dermatofibroma are the most frequent lesions to be considered, peripheral nerve sheath should also be kept in mind in the differential diagnosis of axillary masses.

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Section: Discussionmentioning

confidence: 99%

Cystic schwannoma of the axillary region: imaging findings of a rare disease. Case report.

et al. 2015

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“…the inferior alveolar nerve [3,12,21]. Two types of schwannomas have been identified: peripheral neurogenic tumors located in soft tissues and central ones (intra) situated inside the bone [21].…”

Section: Discussionmentioning

confidence: 99%

Diagnostic and Therapeutic Aspects of an Intraosseous Mandibular Schwannoma: Study of a Clinical Case

Gassama¹,

Tine²,

Ndiaye³

et al. 2016

J Dent Oro Surg

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A schwannoma or neurilemmoma is a benign neurogenic tumor arising from the Schwann cell nerve sheath. The treatment of this benign neurogenic tumor requires surgical exeresis. The purpose of this work was to describe the diagnostic and therapeutic aspects of a mandible intraosseous schwannoma. The patient presented with an ovoid tumefaction that was sensitive to touch. The clinical picture appeared to be marked by progressive sensory problems linked to the compression of the inferior alveolar nerve. The orthopantomograph showed a large granulocytic unifocal radiotranslucent entity deforming the mandibular cortical bone. Its shape was regular, fusiform at the level of the inferior dental canal. From clinical and radiological examinations a cystic or an odontogenic lesion could be diagnosed.Treatment consisted of exeresis of the bone tumor followed by curettage of the granulomatous tissues. A curative antibiotherapy was administered. The histological examination confirmed the diagnosis of a benign schwannoma. In the absence of a relapse, a prosthetic rehabilitation allowed restoration of the ability to chew.

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“…In 1908, José Verocay discovered Schwannoma. [6] Etiology is said to be unknown; however, it is assumed that the lesion arises from the propagation of Schwann cells at a point inside the perineurium, which causes compression and displacement of the surrounding normal nerve. [7] It is most often difficult to find out the nerve of origin.…”

Section: Discussionmentioning

confidence: 99%

“…[4] However, about 1-2% occurs intraorally with tongue being the most common site followed by the palate, floor of mouth, oral mucosa, and mandible. [5,6] Ancient Schwannoma is an uncommon Schwannoma variant which is a slow growing encapsulated painless benign neoplasm. [3] Case Report…”

Section: Introductionmentioning

confidence: 99%

Ancient Schwannoma of the tongue

Guledgud¹,

Degala²,

Patil³

et al. 2016

JMRPS

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Ancient Schwannoma is a rare Schwannoma variant which is a painless, slow-growing benign neoplasm of Schwann cell origin. It is relatively a rare tumor in the head and neck region. We report a case of ancient Schwannoma of the tongue in a 38-year-old female patient, who presented with a slowly progressing painless mass over the tongue. Investigatory impression of ultrasonography and fine-needle aspiration cytology of this lesion was suggestive to be a benign tumor of muscle/nerve origin. An excisional biopsy of the mass with primary closure was done. A final diagnosis of ancient Schwannoma was given based on histopathological examination.

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Clinicopathologic analysis of 7 cases of oral schwannoma and review of the literature

Cited by 43 publications

References 21 publications

Cystic schwannoma of the axillary region: imaging findings of a rare disease. Case report.

Cystic schwannoma of the axillary region: imaging findings of a rare disease. Case report.

Diagnostic and Therapeutic Aspects of an Intraosseous Mandibular Schwannoma: Study of a Clinical Case

Ancient Schwannoma of the tongue

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