Erlen Meyer Flask Deformity is seen in?: (A) Osteopetrosis, (B) Thalassemia, (C) Craniometaphyseal dysplasias, (D) All
Answer is D. Mnemonics for Erlen Meyer Flask Deformity (CHONG) C: craniometaphyseal dysplasias/Pyles disease H: haemoglobinopathies thalassemia sickle cell disease O: osteopetrosis N: Niemann-Pick disease G: Gaucher disease Radiographs showed a nondisplaced fracture and undeubulation of the distal femoral diaphysis -- a condition known as Erlenmeyer-flask deformity.