Erlenmeyer flask appearance of distal femurs can be seen in a number of etiologies including:
Mneumonic: CHONG
* Craniometaphyseal dysplasia
* Hemoglobinopathies
* Sickle Cell
* Thallasemia
* Nieman Pick Dz
* Osteopertrosis
* Gaucher’s
* OTHER:
* Lead poisoning
* Fibrous dysplasia
* Hereditary multiple exostoses
SOURCE: RADSWIKI.
