Bronchial granular cell tumor incidentally detected during preoperative evaluation of thyroid carcinoma: A case report.

The present case report describes a rare granular cell tumor (GCT) found in the right lower lobe bronchus of a 36-year-old male patient. The tumor was incidentally discovered during preparation for thyroid cancer surgery. The patient had noticed a neck mass 3 months prior to admission, which led to an ultrasound-guided bilateral thyroid mass perforated biopsy and pathological examination. The examination revealed thyroid papillary carcinoma. A chest computed tomography scan showed a mass measuring ~29×23 cm near the right lower lobe hilum. Bronchoscopy, histopathological examination and immunohistochemical staining confirmed the diagnosis of GCT. The patient underwent a successful right lower lobe resection and had a smooth postoperative recovery. Subsequently, 1 month later, the patient underwent thyroid cancer surgery without any complications. The patient was regularly monitored and no specific discomfort was reported during the 18-month follow-up.