Polymyositis

Case contributed by Dr Daniela Seixas

Patient Data

Age: 56
Gender: Male
Modality: MRI

MRI (sagittal STIR) of the cervical spine demonstrates diffuse hyperintensity of the paravertebral muscles.

Case Discussion

Polymyositis is a rare autoimmune and sometimes paraneoplastic inflammatory myositis. 

The term “polymyositis” is applied when the condition spares the skin, and “dermatomyositis,” when polymyositis is associated with a characteristic skin rash. 

Polymyositis typically has a symmetric distribution, initially involving the proximal lower limb girdle and progressing to involve the proximal upper limb girdle, neck flexors, and pharyngeal muscles1.

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Case Information

rID: 19187
Case created: 14th Aug 2012
Last edited: 11th Dec 2015
Tag: spine
Inclusion in quiz mode: Included

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