Related Experiment Video
Updated: Apr 22, 2026

08:51
The Use of Thermal Infra-Red Imaging to Detect Delayed Onset Muscle Soreness
Published on: January 22, 2012
18.8K
A young woman with myalgia
Abarna Ratnarajah1, Brendan Barber2, Yohan Samarasinghe2
1Acute Medicine, Frimley Park Hospital, Frimley, UK abarna.ratnarajah@fph-tr.nhs.uk.
Clinical Medicine (London, England)
|October 11, 2014
Summary
A young female experienced muscle pain and a rash. Early diagnosis of muscle conditions requires a systematic approach, including hand examination and MRI.
Area of Science:
- Rheumatology
- Neurology
- Dermatology
Background:
- Myalgia and elevated creatine kinase levels can indicate underlying muscle disease.
- A comprehensive diagnostic strategy is crucial for identifying the etiology of muscular symptoms.
Observation:
- A case study of a young female presenting with myalgia, a rash, and mildly elevated creatine kinase.
- The patient's presentation necessitated a thorough investigation into potential causes of muscle symptoms.
Findings:
- A systematic approach to muscle symptoms is vital for accurate diagnosis.
- Detailed hand examination can provide valuable diagnostic clues.
- Magnetic resonance imaging (MRI) is an important tool in evaluating muscular symptoms.
Implications:
- This case highlights the importance of integrating findings from various diagnostic modalities.
- Early and accurate diagnosis of myopathies can lead to timely and effective treatment.
- Physicians should consider a broad differential diagnosis for patients with myalgia and cutaneous manifestations.
Related Concept Videos
Disorders of the Skeletal Muscle
2.2K
The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
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...
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...
2.2K
Myasthenia Gravis ll: Pathophysiology
18
The disease process of myasthenia gravis begins at the neuromuscular junction, where antibodies attack key proteins needed for muscle activation. This immune reaction weakens signal transmission, leading to the characteristic muscle fatigue and weakness that define the condition.Immune-Mediated DamageIn most individuals, antibodies target acetylcholine receptors (AChRs) on the postsynaptic membrane of muscle cells. By blocking acetylcholine binding, these antibodies prevent the nerve signal...
18
Myasthenia Gravis: Diagnostic Tests
3.2K
Myasthenia gravis is an autoimmune condition affecting neuromuscular transmission, causing generalized weakness in skeletal muscles. Initial diagnoses rely on patients' signs, symptoms, and medical history. The challenge lies in distinguishing myasthenia from other muscular dystrophies. An important diagnostic feature is the significant improvement of symptoms after administering anticholinesterase inhibitors.
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...
3.2K
Alterations in Muscle Tone lll
19
Rigidity and myotonia are distinct abnormalities of muscle tone that affect resistance and relaxation during movement. Although both involve altered muscle contraction, they arise from different neurological and muscular mechanisms.CharacteristicsRigidity is characterized by uniform resistance to passive movement across the entire range, independent of speed, affecting flexors and extensors equally. It may appear as lead-pipe rigidity (smooth, constant resistance) or cogwheel rigidity...
19
Myasthenia Gravis: Overview and Treatment
3.6K
Myasthenia gravis is a neuromuscular transmission disorder characterized by weakness and increased fatigability of skeletal muscles. It is an autoimmune disease affecting approximately one in 2000 people, where antibodies against the α1 subunit of nicotinic acetylcholine receptors are produced.
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...
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...
3.6K
Skeletal Muscle Relaxants: Adverse Effects
1.2K
Skeletal muscle relaxants are widely used for muscle paralysis and relieving pain following any muscle injury or stiffness. However, depending on the drug type, they can have adverse effects that range from mild to severe. Usually, nondepolarizing neuromuscular blockers have minimal side effects. For example, drugs like d-tubocurarine, cisatracurium, and rocuronium cause hypotension, whereas drugs like baclofen, when stopped abruptly, can lead to the recurrence of spastic conditions.
Unlike...
Unlike...
1.2K

