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Granular cell tumour: a rare caruncle lesion
  1. M Evans,
  2. E Chang,
  3. D L Yu,
  4. N A Rao
  1. Doheny Eye Institute, Department of Ophthalmology and Pathology, The Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
  1. Correspondence to: Narsing A Rao MD, Doheny Eye Institute, 1450 San Pablo Street, DVRC 211, Los Angeles, CA 90033, USA; nrao{at}usc.edu

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Granular cell tumour is a benign neoplasm of a Schwann cell in origin.1 Rarely this tumor arises in the orbit, skin of the eyelid, palpebral conjunctiva, lacrimal sac, caruncle, and inferior oblique muscle.2 We report a case of granular cell tumour of the caruncle in an adult patient with mechanical ectropion and immunohistochemical features of this lesion.

Case report

A 72 year old male patient was evaluated for ectropion of the right lower eyelid, 2 months in duration. Examination revealed a 1 cm, firm, movable, reddish caruncle mass in the right eye associated with ectropion (fig 1A). Computed tomography of the orbit revealed a hyperdense lesion located at the anterionasal side of the globe (fig …

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