A case of Neurilemmoma in the oral floor.

Nakamura, Naoki; Sekiguchi, Takashi; Honma, Kiyoshi; Kodama, Satoru; Nagai, Isaku; Kohawa, Gen-iku

doi:10.5843/jsot.7.28

Cited by 1 publication

(3 citation statements)

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“…Occurrence is also greater between the ages of 10 and 20 years, showing a tendency to develop at a younger age 6) . A number of factors have been reported to involved in their development, including trauma, internal secretion, and abnormal growth of the nervous system.…”

Section: Discussionmentioning

confidence: 89%

“…This type of tumor can develop in various parts of the body, but only 4% are found in the oral cavity, of which 50% are on the tongue, with occurrence on floor of the mouth extremely rare 3,6,8,10,14) . Although some reports have indicated no difference in prevalence between sexes, others have reported it to be higher in women 1,3,6,8) .…”

Section: Discussionmentioning

confidence: 99%

“…It is possible that secondary change had occurred within the lesion, as several years had lapsed before treatment was commenced, and indeed the MRI findings appear to indicate this. Many studies have reported the usefulness of MRI in diagnosing such tumors 2,6) . However, it is sometimes difficult to distinguish them from malignant tumors, as in this case.…”

Section: Discussionmentioning

confidence: 99%

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Schwannoma Derived from Lingual Nerve Occurring in Floor of Mouth

Yamamoto

Iwamoto

Bessho

et al. 2013

Bull. Tokyo Dent. Coll.

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A schwannoma is a benign tumor composed of schwann cells which forms on the periphery of nerves. We report a case of a schwannoma derived from a lingual nerve occurring in the floor of the mouth. The patient was a 27-year-old woman who presented with the complaint of a swelling in the floor of the mouth. It is difficult to distinguish a swelling from a sublingual gland tumor, cyst, or malignant tumor by MRI alone. Therefore, a biopsy and cytological examination were performed one week prior to surgery to determine whether the growth represented a malignancy. The results revealed a class II growth which was suspected to be a schwannoma. Intraoperatively, it became clear that the tumor and lingual nerve were inseparable, making excision of the nerve unavoidable. On the other hand, there was a clear border between the tumor and the sublingual gland, so it was possible to preserve the sublingual gland. In the postoperative pathological diagnosis, a definitive diagnosis was difficult based solely on H-E staining. Therefore, immunohistochemical staining was performed, resulting in a diagnosis of schwannoma. Currently, the patient is still being followed up. The results of this case indicate that preoperative aspiration biopsy cytology is useful in deciding the operative method to be employed.

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Section: Discussionmentioning

confidence: 89%