Fig. 3From: Therapeutic bronchoscopy followed by sequential radiochemotherapy in the management of life-threatening tracheal adenoid cystic carcinoma: a case reportHistopathological examination result showing a tumor mass with cribriform structure and solid islands. A Hematoxylin–eosin staining at 40× magnification. B Hematoxylin–eosin staining at 200×Back to article page