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).
Also Known As:
Granuloma, Plasma Cell, Orbital; Inflammatory Pseudotumor of Orbit; Orbital Granuloma, Plasma Cell; Orbital Inflammatory Pseudotumor; Plasma Cell Granuloma, Orbital; Pseudotumor, Inflammatory, Orbital; Inflammatory Pseudotumors, Orbital; Orbital Inflammatory Pseudotumors; Orbital Pseudotumors; Pseudotumor, Orbital; Pseudotumor, Orbital Inflammatory; Pseudotumors, Orbital; Inflammatory Pseudotumor, Orbital