Atypical Conjunctival Lesion as the Initial Presentation of Granulomatosis with Polyangiitis in an Adolescent Male

Abstract

Purpose:The purpose of this study was to report the first case of a conjunctival granulomatous lesion as the presenting sign of granulomatous polyangiitis (GPA) in a pediatric patient.Methods:This study is a case report.Results:A 14-year-old Hispanic boy presented with a conjunctival lesion on the inferior bulbar conjunctiva of the right eye associated with diffuse conjunctival injection. The mass progressively grew and became painful over the course of 6 weeks. No retinal or orbital abnormalities were noted on examination. The lesion was excised, and histopathological analysis was consistent with granulomatous inflammation. The lesion recurred after 15 months, and a second excisional biopsy was performed. The lesion again slowly recurred, and on presentation to our clinic, an elevated lesion in the inferior limbal/bulbar conjunctiva of the right eye was noted from 4 to 8 o'clock with accompanying forniceal shortening. Five months after the second excision, the patient developed flu-like symptoms with polyarthralgia. A full diagnostic workup revealed multiple pulmonary nodules on chest imaging, proteinuria on urinalysis, and a positive c-antineutrophil cytoplasmic antibody on serological studies. Based on these findings, the patient underwent a kidney biopsy which showed pauci-immune crescentic glomerulonephritis, consistent with a diagnosis of GPA. The patient achieved disease remission with rituximab. Despite treatment, the conjunctival lesion did not regress and remained unchanged in size for 3 years with periodic episodes of inflammation.Conclusions:This is the first documented case of a conjunctival mass as the initial presenting feature of pediatric GPA. The presence of granulomatous inflammation on histopathology and recurrences after excision should raise suspicion for GPA in children and adults. © 2022 Lippincott Williams and Wilkins. All rights reserved.