sinus tarsi syndrome: diagnosed on 99mtc-mdp bone spect/ct

Sinus tarsi syndrome is a cause of chronic ankle instability and pain. mri of the ankle has been the modality of choice for diagnosing the condition. however, spect-ct offers an alternate modality for diagnosing and evaluation of the condition. we present the case of a footballer who was suffering from chronic right leg pain despite receiving physiotherapy. he was being managed as a case of a chronic ankle sprain. meanwhile, he was referred to the department as radiology for mri of the ankle could not be performed as the patient felt claustrophobic. the patient subsequently underwent a 99mtc-mdp bone scan. he was diagnosed to be suffering from sinus tarsi syndrome as it showed a characteristic pattern noted on 99mtc-mdp bone scintigraphy. this case report reveals the potential of spect-ct as an alternative in the evaluation of chronic ankle sprain to mri in segment of cases where mri is not performed due to various reasons.