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Published on: January 12, 2024
Extraocular muscle involvement in MALT lymphomas
Jose M Abalo-Lojo1, Sandra Baleato-Gonzalez, Ihab Abdulkader
1Service of Ophthalmology, Complejo Hospitalario Universitario de Santiago de Compostela, and Department of Physiology, School of Medicine, University of Santiago de Compostela, Spain. jmabalolojo@yahoo.es
Abstract:
We report 3 cases of extraocular muscle involvement by MALT (mucosa-associated lymphoid tissue) lymphoma. The first case was a 68-year-old woman who presented with mild proptosis of the left eye and diplopia caused by a lymphoma in the medial rectus. The other two cases presented with ptosis caused by a lymphoma in the most anterior aspect of the levator muscle. MALT lymphoma may involve extraocular muscles, either as a primary or secondary presentation. Although localization of orbital lymphoma in extraocular muscles is rare, this possibility should be considered in the differential diagnosis with other conditions involving extraocular musculature.
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