Medial rectus muscle myositis as an atypical presentation of mucosa-associated lymphatic tissue lymphoma: a case report

Arquivos Brasileiros de Oftalmologia

Juliana Sá Freire Medrado Dias¹  Mirtha Alicia Ramirez Dittrich¹  Jacqueline Martins De Sousa¹  Luiz Fernando Teixeira¹  Paulo Gois Manso¹ 

关键词: Orbital neoplasms;    Orbital myositis;    Oculomotor muscles/pathology;    Muscle neoplasms;    Orbital neoplasms;    Lymphoma;    B-cell;    marginal zone;    Humans;    Male;    Middleaged;    Case report;    Neoplasias orbitárias;    Miosite orbital;    Músculos oculomotores;    Neoplasias musculares;    Linfoma de zona marginal tipo células B;    Humanos;    Masculino;    Adulto;    Meia-idade;    Relato de caso;   

DOI  :  10.5935/0004-2749.20140029

来源: SciELO

【 摘 要 】

Here we describe the rare case of a 55-year-old man with medial rectus muscle myositis as an atypical presentation of non-Hodgkin B-cell mucosa-associated lymphoma (MALT). Pathology and immunohistochemistry of the affected muscle confirmed the diagnosis of a neoplasm. The primary etiology of orbital myositis is Graves' ophthalmopathy, but several other diseases may cause this clinical presentation. Therefore, the neoplastic causes must be eliminated from the differential diagnoses. non-Hodgkin B-cell mucosa-associated lymphoma is the most common histological type of lymphoma in the orbit, with the conjunctiva and lacrimal glands being the most commonly affected sites. However, it may also present in atypical forms involving others sites and tissues.

【 授权许可】

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