TACC diagnosed by transoesophageal endoscopic ultrasonography: A case report.

Background: Primary adenoid cystic carcinoma in the trachea (TACC) is a rare tumour. Tracheal bronchoscopy is always chosen as a routine approach to obtain a pathological diagnosis, but it can be associated with an increased risk of asphyxia.

Case Summary: We describe a case of TACC in a patient evaluated by chest computed tomography (CT) with three-dimensional reconstruction imaging and diagnosed by transoesophageal endoscopic ultrasonography. The pathological diagnosis confirmed tracheal adenoid cystic carcinoma.

Conclusion: We highlight the importance of CT and provide a successful exploration of transoesophageal biopsy as a safe alternative approach.