Related Experiment Video
Updated: Jul 14, 2026

Assessing Activity-based Anorexia in Mice
Published on: May 14, 2018
[Pseudo-myasthenic myopathy in a woman with anorexia nervosa]
J-L Dupond1, N Meaux-Ruault, C Hafsaoui
1Service de médecine interne, immunologique clinique, hôpital Jean-Minjoz, CHU de Besançon, 2, boulevard Fleming, 25030 Besançon cedex, France. jean.dupond@ufc-chu.univ-fcomte.fr
Abstract:
Skeletal myopathy, although foreseeable in severe malnutrition, has been rarely reported in patients with anorexia nervosa. We report a case of oculo-oropharyngeal myopathy mimicking myasthenia in a 42-year-old woman with an history of anorexia nervosa, completely reversible after refeeding with carbohydrate diet, mainly chocolate. Nutritional myopathies are not well known and therefore rarely looked for in patients with anorexia nervosa. Classical presentation is a myogenic syndrome with severe type 2 fibre atrophy and biochemical characteristics similar to Mac Ardle's disease. A clinical form mimicking myasthenia gravis has never been reported. Refeeding programme leads to total recovery within a few days.
Related Concept Videos
Anorexia Nervosa
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Myasthenia Gravis: Overview and Treatment
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which leads...
Myasthenia Gravis ll: Pathophysiology
Myasthenia Gravis: Diagnostic Tests
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...
Bulimia Nervosa
Disorders of the Skeletal Muscle
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...

