[Intrathoracic neurofibroma originating in the left vagus nerve].
A 20-year-old man was admitted because of an abnormal mass shadow on chest X-ray film. Computed tomography (CT) and magnetic resonance imaging (MRI) disclosed a mass lesion in the superior portion of the left mediastinum. CT scans showed a well-defined mass with low density. Axial MRI rendered the mass lesion with intermediate signal intensity on T1-weighted images and high signal intensity on T2-weighted images. The preoperative diagnosis was bronchogenic cyst. Video-assisted thoracic surgery revealed that the tumor originated in the truncus of the left vagus nerve. The resected tumor was 90 x 24 x 18 mm in size. The postoperative course was uneventful and hoarseness did not develop. The pathologic diagnosis was benign mediastinal neurofibroma without von Recklinghausen's disease. Such cases are extremely rare in the Japanese literature.
Hoshino
H
H
Department of Respiratory Medicine, Hokkaido Keiaikai Minami Ichijyo Hospital, Sapporo, Japan.
Ohbuchi
T
T
Sakon
O
O
Suzuki
G
G
Shigehara
K
K
Takabatake
H
H
Fujita
A
A
Tagaki
S
S
Sekine
K
K
Abe
S
S
D000328:Adult; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008482:Mediastinum / Q000294:innervation*; D009455:Neurofibroma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D013906:Thoracoscopy; D016896:Treatment Outcome; D014630:Vagus Nerve / Q000473:pathology* / Q000601:surgery