Case report: A rare case of focal myositis presenting as Sartorius muscle contracture: A case report and review of literature.

RATIONALE

Focal myositis (FM) is a very rare myopathy of unknown etiology characterized by focal enlargement within one single skeletal muscle. In particular, it occurs only involving the Sartorius muscle has never been reported.

PATIENT CONCERNS

A 25-year-old man was admitted to the hospital with progressive restricted left hip joint extension, left thigh discomfort and gait disturbance for 6 years.

DIAGNOSES

Combining clinical manifestations with results of radiological and pathological examinations, it was consistent with the diagnosis of FM INTERVENTIONS:: The patient received a surgery under general anesthesia to release the contracted Sartorius tendon.

OUTCOMES

The range of motion of the patient's left hip and ipsilateral knee has significantly improved as well as the discomfort of his left thigh relieved obviously after the surgery.

LESSONS

This case report is the first to report FM presenting as sartorius muscle contracture and the surgery is an alternative therapy for these patients.