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Schwannoma arising in a lymph node mimicking metastatic pulmonary carcinoma.

ABSTRACT: Schwannomas commonly arise in the torso, extremities, and mediastinum. However, no interlobar lymph node (#11i) lesions have ever been reported. This is a thought-provoking case, because it involved a schwannoma arising in a lymph node mimicking metastatic pulmonary carcinoma. A 72-year-old man was diagnosed with primary pulmonary carcinoma, and 18F-fluorodeoxyglucose (FDG) positron emission tomography demonstrated high FDG uptake in the primary lesion and in #11i, which suggested metastasis (clinical stage IIA). A right lower lobectomy with lymph node dissection was performed. Fortunately, the enlarged #11i was a schwannoma and not metastasis. The take-home message is "a patient with multiple neuromatosis tends to have schwannomas throughout the body".

SUBMITTER: Kamiyoshihara M

PROVIDER: S-EPMC6041373 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Schwannoma arising in a lymph node mimicking metastatic pulmonary carcinoma.

Kamiyoshihara Mitsuhiro M Igai Hitoshi H Ohsawa Fumi F Yoshikawa Ryohei R Yazawa Tomohiro T

Respiratory medicine case reports 20180604

Schwannomas commonly arise in the torso, extremities, and mediastinum. However, no interlobar lymph node (#11i) lesions have ever been reported. This is a thought-provoking case, because it involved a schwannoma arising in a lymph node mimicking metastatic pulmonary carcinoma. A 72-year-old man was diagnosed with primary pulmonary carcinoma, and 18F-fluorodeoxyglucose (FDG) positron emission tomography demonstrated high FDG uptake in the primary lesion and in #11i, which suggested metastasis (cl ...[more]

PMID: 30003019

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