J Korean Soc Radiol.  2011 Jan;64(1):71-74. 10.3348/jksr.2011.64.1.71.

Calcific Myonecrosis of the Lower Extremities: A Case Report

• Suh HJ
• Kim WT
• Seo MJ
• Kim YJ

• KMID: 1443585
• DOI: http://doi.org/10.3348/jksr.2011.64.1.71

Abstract

Calcific myonecrosis is a rare and latent condition of the lower extremities after a trauma and is characterized by the formation of a fusiform mass lesion in the anterior compartment of the leg showing peripheral dystrophic calcification and central liquefaction. We report the radiologic findings of calcific myonecrosis in a patient with a lower extremity calcified mass lesion.

MeSH Terms

Calcinosis
Compartment Syndromes
Humans
Leg
Lower Extremity
Magnetic Resonance Imaging
Necrosis

Figure

• 

  Fig. 1 A 73-year-old man with calcific myonecrosis presented as a painless, slowly enlarging mass on the anterolateral aspect of left leg. A. Anteroposterior radiograph shows lobulated, fusiform soft tissue mass in the anterior compartment of the left leg with well defined peripheral plaque-like calcifications and adjacent tibial cortex erosion. B. Axial T1-weighted MR image shows a thick and nodular low signal intensity peripheral rim corresponding to the distribution of calcification. The central portion has a homogenous and high signal intensity. C. Axial fat suppressed T2-weighted MR image shows the heterogenous calcified mass in the anterior compartment of the leg with a predominant high signal intensity central cystic appearance. D. A coronal proton density-weighted MR image shows the extent of the soft tissue mass in the lower leg. E. Photomicrograph of the histopathologic specimen shows a characteristic histiocytic reaction with dystrophic calcification (arrow) (H & E stain, ×100).

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