Avascular necrosis of talus diagnosed on Tc-99m MDP bone scan

Ashish R Kamra, Shwetal U Pawar, Suruchi Shetye, Preeti R Singh

Indian Journal of Nuclear Medicine 2017 32(3):211-213

Avascular necrosis (AVN) of bone is defined as the cellular death of bone components due to the interruption of the blood supply; the bone structures then collapse, resulting in pain and loss of joint function. Magnetic resonance imaging (MRI) is the gold standard to diagnose AVN. We present an unusual case of AVN of talus in a patient of thalassemia major that was diagnosed on the Tc-99m MDP bone scan with equivocal findings on MRI.

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