A patient with concurrent Axenfeld-Rieger and Stickler syndromes verified by molecular genetics.

Purpose: To report a case of Axenfeld-Rieger and Stickler Syndrome in a pediatric patient. Observations: A 3-month-old male was referred to the glaucoma clinic after he was noted to have elevated intraocular pressures in both eyes. His family history was notable for infantile glaucoma on his maternal side and retinal detachment on his paternal side. He was found to have anterior segment dysgenesis with iris strands, iridocorneal adhesions, and corectopia, as well as veil-like vitreous in both eyes. He required trabeculotomy, goniotomy, and multiple Baerveldt glaucoma implants in both eyes to achieve intraocular pressure control. Furthermore, the patient later developed macula-involving retinal detachments in both eyes, requiring pars plana vitrectomy with silicone oil tamponade. Genetic analysis confirmed heterozygous pathogenic variants in both the FOXC1 and COL2A1 genes, leading to the concurrent diagnoses of Axenfeld-Rieger and Stickler syndromes. Conclusions and importance: This is a rare case of a patient with concurrent Axenfeld-Rieger and Stickler syndromes. The severity of pathology in both the anterior and posterior segments required a collaborative multidisciplinary approach. In the diagnostic evaluation of congenital eye diseases, if there is strong family history of atypical findings for a given diagnosis, concurrent syndromes should be considered and ruled out. A comprehensive eye genetics panel may be a useful tool in these cases.