Oyaizu Takeshi, Miyabe Shingo, Kadoma Shoko, Hirose Masahide, Ota Shinichiro
Department of Thoracic Surgery, Shizuoka General Hospital, Shizuoka, Japan.
Kyobu Geka. 2020 Feb;73(2):157-159.
A 18-year-old man was referred to our hospital complaining of chest abnormal shadow of the left upper lung field in mass screening chest X-ray. Although his left anterior chest wall swelled, he did not recognize that. Computed tomography and magnetic resonance imaging demonstrated a dumbbell shaped tumor of the left 1st intercostal space which had grown both inside and outside the thoracic cavity. As a possibility of solitary fibrous tumor or myxoma was not excluded, the patient underwent tumor resection. A solid tumor connected to the 1st intercostal nerve was easily dissected from surrounding tissue. Pathological examination revealed the tumor was consisted of spindle shaped cells without atypia, and diagnosed as neurilemmoma without malignancy. Based on anatomical pathway of intercostal nerves, we speculate that the tumor originated from anterior cutaneous nerve.
一名18岁男性在胸部X线大规模筛查中因左上肺野胸部异常阴影被转诊至我院。尽管他的左前胸壁肿胀，但他自己并未意识到。计算机断层扫描和磁共振成像显示左第1肋间间隙有一个哑铃形肿瘤，该肿瘤已在胸腔内外生长。由于不能排除孤立性纤维瘤或黏液瘤的可能性，患者接受了肿瘤切除术。一个与第1肋间神经相连的实性肿瘤很容易从周围组织中分离出来。病理检查显示肿瘤由无异型性的梭形细胞组成，诊断为无恶性的神经鞘瘤。根据肋间神经的解剖路径，我们推测该肿瘤起源于前皮神经。
