image Q. 1- Tarsal exostosis

Q. Osteochondroma, one of the most common benign bone tumor commonly involves which of these tarsal bones?


a. Cuboid
b. Talus
c. Navicular
d. Calcaneum

Answer-
d

Osteochondroma is rare in carpal and tarsal bones as these bones arise from ossification centre that is centrifugally expanding as in epiphysis.
Calcaneum is an exception as this bone has a secondary centre of ossification.