Adenoid cystic carcinoma is a malignant tumor of salivary glands. It is extremely rare in trachea
worldwide. They arise in the subepithelioal minor salivary glands, grow slowly and metastasize by perineural
invasion. Patient usually presents with dyspnea. It is diagnosed by histopathological evaluation of biopsy taken
by endoscopy. Its treatment includes surgical resection with or without radiotherapy. They frequently recur after
initial treatment.