To describe the clinical manifestations, radiologic findings, and treatment outcomes of pediatric pseudotumors.

A retrospective chart review of patients diagnosed with pediatric pseudotumor (age under 20 years old) from August 2008 to February 2012 was performed.

Thirteen patients (16 eyes) were included in this study. The mean age of the subjects was 14.2 years (5-20 years). Swollen eyelid (56.3%), ptosis (43.8%), conjunctival injection (18.8%), localized mass (18.8%), limitation of ocular movement (12.5%), proptosis (6.3%), and decreased visual acuity (6.3%) were found initially. Dacryoadenitis (62.5%), myositis (18.8%), anterior orbital inflammation (18.8%), and diffuse type (6.3%) were observed on orbital computed tomography (CT). Among the 13 patients (16 eyes), 8 patients (10 eyes) were administered oral systemic corticosteroids, 2 patients (2 eyes) received IV systemic corticosteroid, 1 patient (1 eye) received systemic corticosteroids combined with NSAID, and 2 patients (3 eyes) were prescribed NSAIDs only. Symptoms improved 4.1 days after initiation of treatment. CT scans revealed that one patient experienced diffuse-type disease recurrence twice.

Orbital pseudotumors, which are rare in younger people, are likely to respond very well to corticosteroid treatment, and the recurrence of orbital inflammation is rare.