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Updated: Aug 8, 2026

Diagnosis of Musculus Gastrocnemius Tightness - Key Factors for the Clinical Examination
Published on: July 7, 2016
Acute gastrocnemius myositis. Another extraintestinal manifestation of Crohn's disease
1Department of Surgery, John Hunter Hospital, New Lambton Heights, NSW.
Objective:
To present the first case in Australia of skeletal muscle inflammation as a manifestation of Crohn's disease.
Clinical Features:
A 50-year-old man was admitted to hospital with a two-week history of bloody diarrhoea, weight loss of 3 kg, soreness of his calf and thigh muscles, and night sweats. A clinical diagnosis of acute Crohn's gastrocnemius myositis was made. Muscle biopsy was not performed.
Intervention And Outcome:
He was prescribed hydrocortisone by the intravenous route, which was replaced by prednisone by mouth. The myositis resolved completely within 48 hours.
Conclusion:
Corticosteroids are an effective treatment for this rare extraintestinal manifestation of Crohn's disease. Invasive investigations can be reserved for those who fail to respond.
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