Intramuscular ectopic lacrimal gland cyst masquerading as myocysticercosis

Abstract

Ectopic lacrimal gland within the orbit is an extremely rare choristoma occurring due to sequestration of a portion of normal lacrimal gland at an abnormal site during embryogenesis. Most cases of orbital ectopic lacrimal gland present with progressive unilateral proptosis and often become symptomatic in the first 3 decades of life. Although diagnosis is aided by a high clinical suspicion and radiologic features, histopathologic examination is confirmatory. To the best of the knowledge, the authors report the first case of an intramuscular ectopic lacrimal gland in the inferior rectus muscle simulating myocysticercosis.