Schwannoma assumedly originating from the submandibular ganglion or glandular branches radiologically mimicking a submandibular gland tumor
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Schwannoma is a benign nerve sheath tumor composed of Schwann cells. Schwannomas originating from ganglia are rare, and schwannomas of the submandibular ganglion or glandular branches have not been reported to date. We present a case of a Japanese woman in her sixties with a submandibular schwannoma originating from the submandibular ganglion, mimicking a submandibular gland tumor on radiological findings. As the radiological findings were nonspecific, the key finding in the present case may be the characteristic location of the tumor suspended from the undersurface of the lingual nerve and situated above the deep portion of the submandibular gland.
KeywordsSchwannoma Submandibular ganglion Submandibular gland Diagnosis
The authors thank Ms. Yukiko Ishii for her illustration in Fig. 3.
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Conflict of interest
Akira Baba, Katsuhiko Sakai, Yumi Okuyama, Hideomi Yamauchi, Nobuhiro Ogino, Kazuhiko Hashimoto, Yasuaki Hasegawa, Yuki Seto, Shinji Yamazoe, Yuko Kobashi, Takuji Mogami, Takeshi Nomura, and Hiroya Ojiri declare that they have no conflict of interest.
Human rights statement
All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1964 and later versions.
Informed consent was obtained from the patient for being included in the study.
Animal rights statement
This article does not contain any studies with animal subjects performed by any of the authors.
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