Chatterjee, KDolui, SDas, SPaul, A2026-05-202026-05-202013https://hdl.handle.net/20.500.14572/6154K Chatterjee Calcutta Medical College S Dolui Calcutta National Medical College and Hospital S Das B C Roy Children Hospital A Paul Calcutta National Medical College and Hospital, KolkataAbstract: Osteogenesis imperfecta (OI) is a generalised disorder of connective tissue presenting with fragile bones, blue sclera and early deafness. Hydrocephalus is usually associated with type 2 OI. Here we present a rare case of noncommunicating hydrocephalus and patent foramen ovale in type 3 OI.en-USosteogenesis imperfectatypeshydrocephalusdeafnessArticle