Cibis G W, Spurney R O, Waeltermann J
Ann Ophthalmol. 1986 Feb;18(2):68-9.
The clinical presentation of a congenital mucocele is a blue-gray tense mass located inferior to the medial canthal ligament. The differential diagnosis is that of tumor and encephalocele. Diagnostic modalities such as simple transillumination and ultrasound aid the physician, but dacryocystography confirms the marked lacrimal sac distension. In three infants the sac could not be decompressed by massage, indicating that the canalicular-punctal system as well as the inferior lacrimal system were blocked. When the distended lacrimal sac compresses the two canaliculi and bends them on themselves, there is a functional trapdoor-type block. During the probing of these patients, we felt a snap when the lacrimal syringe was withdrawn from the distended sac. We concluded that this was due to kinking of the canaliculus by the enlarged sac.
先天性黏液囊肿的临床表现为位于内眦韧带下方的蓝灰色张力性肿块。鉴别诊断包括肿瘤和脑膨出。简单透照和超声等诊断方法有助于医生诊断，但泪囊造影可证实泪囊明显扩张。在三名婴儿中，泪囊无法通过按摩减压，这表明泪小管-泪点系统以及下泪道系统均受阻。当扩张的泪囊压迫两条泪小管并使其自身弯曲时，就会出现功能性活板门样阻塞。在对这些患者进行探通时，当从扩张的泪囊中拔出泪囊注射器时，我们感觉到一声轻响。我们得出结论，这是由于扩大的泪囊使泪小管扭结所致。
