Serous retinal detachment in Joubert syndrome

Area of Science:

• Ophthalmology
• Genetics
• Pediatrics

Background:

• Joubert syndrome is a rare genetic ciliopathy characterized by a distinctive brainstem malformation.
• It presents with a wide spectrum of clinical manifestations, often including developmental delay and specific facial features.
• The underlying genetic causes are diverse, with mutations identified in numerous genes, yet the molecular basis remains incompletely understood.

Observation:

• A 3-year-old boy of Chinese-Italian descent diagnosed with Joubert syndrome was examined.
• Ophthalmic evaluation revealed bilateral optic disc coloboma, a congenital anomaly of the optic nerve head.
• Additionally, serous retinal detachment was observed in the left eye.

Findings:

• The co-occurrence of bilateral optic disc coloboma and unilateral serous retinal detachment in a patient with Joubert syndrome is a novel observation.
• These specific ocular findings have not been previously documented in the existing literature for Joubert syndrome.
• The presence of these unique ocular features suggests potential heterogeneity within Joubert syndrome phenotypes.

Implications:

• The newly identified ocular manifestations may serve as important diagnostic clues for Joubert syndrome.
• These findings could point towards a previously unrecognized genetic subtype or a distinct genotype-phenotype correlation within Joubert syndrome.
• Further research into the genetic basis of these specific ocular findings is warranted to better understand the pathophysiology of Joubert syndrome.