Glatt H J, Chan A C
Ophthalmic Surg. 1991 Dec;22(12):757-8.
Medial maxillectomy can result in lacrimal obstruction and the need for subsequent dacryocystorhinostomy. Computed tomographic dacryocystography is a technique in which radiopaque dye is instilled in the lacrimal sac and computed tomography is subsequently performed. Computed tomographic dacryocystography facilitated the management of a patient with lacrimal obstruction after medial maxillectomy by helping to exclude recurrent tumor and sinusitis, and by providing a surgical "roadmap" in the presence of altered anatomy.
上颌骨内侧切除术可导致泪道阻塞，进而需要进行后续的泪囊鼻腔吻合术。计算机断层扫描泪囊造影术是一种将不透X线的染料注入泪囊，随后进行计算机断层扫描的技术。计算机断层扫描泪囊造影术有助于排除复发性肿瘤和鼻窦炎，并在解剖结构改变的情况下提供手术“路线图”，从而便于对上颌骨内侧切除术后泪道阻塞的患者进行治疗。
