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Canalicular Cyst.
Ocular Oncology and Pathology 2015 June
PURPOSE: To report a new entity discovered in the lacrimal drainage system, a congenital canalicular cyst (as opposed to a diverticulum or canaliculops).
METHODS: Clinical, radiographic, histopathologic and immunohistochemical findings were reviewed.
RESULTS: A 49-year-old man developed a left upper eyelid cyst seen by CT scanning to be attached to a small boney spicule. No connection to the lacrimal sac or canaliculus was discovered during surgical excision. Histopathologically, the cyst was lined mostly by canalicular epithelium, expressing a cytokeratin profile similar to that of a normal canaliculus and canaliculops.
CONCLUSION: This case increases ophthalmologists' appreciation of the range of conditions that can affect the lacrimal drainage and canalicular system. The treatment for a diverticulum is marsupialization, whereas that for a canalicular cyst is complete excision.
METHODS: Clinical, radiographic, histopathologic and immunohistochemical findings were reviewed.
RESULTS: A 49-year-old man developed a left upper eyelid cyst seen by CT scanning to be attached to a small boney spicule. No connection to the lacrimal sac or canaliculus was discovered during surgical excision. Histopathologically, the cyst was lined mostly by canalicular epithelium, expressing a cytokeratin profile similar to that of a normal canaliculus and canaliculops.
CONCLUSION: This case increases ophthalmologists' appreciation of the range of conditions that can affect the lacrimal drainage and canalicular system. The treatment for a diverticulum is marsupialization, whereas that for a canalicular cyst is complete excision.
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