MRI and ultrasound in solitary muscular and soft tissue cysticercosis

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Abstract
Solitary cysticercosis of muscles and soft tissue is a rare disease and can cause a diagnostic dilemma clinically. We present the MRI and ultrasound findings in six patients with solitary muscular and soft tissue cysticercosis. Five of them had clear cysts that displayed low signal intensity on T1-weighted images and high signal intensity on T2-weighted images. Four of these cysts had scolices within them. One patient had an ill-defined hyperintense lesion on T2-weighted images without any clear cyst. Ultrasound performed in all patients showed similar findings, with the scolices being more clearly appreciated. MRI and ultrasound are useful in the diagnosis of solitary muscular and soft tissue cysticercosis and they reliably establish the diagnosis when a clear cyst with scolex is seen.