Definition: A nonspecific tumor-like inflammatory lesion in the ORBIT of the eye. It is usually composed of mature LYMPHOCYTES; PLASMA CELLS; MACROPHAGES; LEUKOCYTES with varying degrees of FIBROSIS. Orbital pseudotumors are often associated with inflammation of the extraocular muscles (ORBITAL MYOSITIS) or inflammation of the lacrimal glands (DACRYOADENITIS).
non-neoplastic
Other names Inflammatory Pseudotumor, Orbital; Pseudotumors, Orbital; Pseudotumor, Orbital Inflammatory; Pseudotumor, Orbital; Orbital Pseudotumors; Orbital Inflammatory Pseudotumors; Inflammatory Pseudotumors, Orbital; Pseudotumor, Inflammatory, Orbital; Plasma Cell Granuloma, Orbital; Orbital Inflammatory Pseudotumor; Orbital Granuloma, Plasma Cell; Inflammatory Pseudotumor of Orbit; Granuloma, Plasma Cell, Orbital
