A Novel Variant in the AGPS Gene Causes the Rare Rhizomelic Chondrodysplasia Punctata Type 3: A Case Report.

Rhizomelic chondrodysplasia punctata (RCDP) is a devastating medical condition for patients and their families. It is a rare peroxisomal autosomal recessive disorder. It was recognized clinically with skeletal abnormalities and intellectual disabilities mainly due to plasmalogen deficiency. Here, we report a case of a 16-day-old girl who was referred to King Abdulaziz Medical City Jeddah, Saudi Arabia because of dysmorphic features. Her growth parameters were below the 3rd centile with short proximal long bones and multiple joint contractures in the extremities. The radiographs showed rhizomelic and shortening of both humeri and femurs. Moreover, punctate ossification was identified in the upper spine, humeri around the shoulders, and femurs around the knees. We observed other classical features, and the genetic testing confirmed the diagnosis of RCDP type 3. Although RCDP is a rare condition, it is a distressing burden necessitating early diagnosis and a holistic approach for management.