Limb-girdle muscular dystrophy, type 2C
Prevalence estimates on Rare Medical Network websites are calculated based on data available from numerous sources, including US and European government statistics, the NIH, Orphanet, and published epidemiologic studies. Rare disease population data is recognized to be highly variable, and based on a wide variety of source data and methodologies, so the prevalence data on this site should be assumed to be estimated and cannot be considered to be absolutely correct.
Age of Onset
Autosomal dominant ?A pathogenic variant in only one gene copy in each cell is sufficient to cause an autosomal dominant disease
Autosomal recessive ?Pathogenic variants in both copies of each gene of the chromosome are needed to cause an autosomal recessive disease and observe the mutant phenotype
X-linked dominant ?X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome.
X-linked recessive ?Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder
Mitochondrial or multigenic ?Mitochondrial genetic disorders can be caused by changes (mutations) in either the mitochondrial DNA or nuclear DNA that lead to dysfunction of the mitochondria and inadequate production of energy.
Multigenic or multifactor ?Inheritance involving many factors, of which at least one is genetic but none is of overwhelming importance, as in the causation of a disease by multiple genetic and environmental factors.
Other Names (AKA)
Limb-girdle muscular dystrophy with gamma-sarcoglycan deficiency; Gamma-sarcoglycanopathy; LGMD2C;
Congenital and Genetic Diseases; Heart Diseases; Metabolic disorders;
Limb-girdle muscular dystrophy type 2C (LGMD2C) is a genetic condition that affects the voluntary muscles around the hips and shoulders. This condition belongs to a group of muscle disorders called limb-girdle muscular dystrophies, which are characterized by progressive loss of muscle bulk and symmetrical weakening of voluntary muscles. Symptoms of LGMD2C usually appear around 6-8 years of age, may be mild or severe, and can progress to loss of the ability to walk by 12-16 years. Symptoms may additionally include: enlargement (hypertrophy) of the calf muscle and tongue, diseases of the heart muscle (
This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.
|Medical Terms||Other Names||
|30%-79% of people have these symptoms|
|Abnormal macrophage morphology||0004311|
Wide based walk
|Calf muscle hypertrophy||
Increased size of calf muscles
|Calf muscle pseudohypertrophy||0003707|
|Difficulty climbing stairs||
Difficulty walking up stairs
|Elevated serum creatine kinase||
Elevated blood creatine phosphokinase
Elevated circulating creatine phosphokinase
Elevated creatine kinase
Elevated serum CPK
Elevated serum creatine phosphokinase
High serum creatine kinase
Increased creatine kinase
Increased creatine phosphokinase
Increased serum CK
Increased serum creatine kinase
Increased serum creatine phosphokinase
[ more ]
|EMG: myopathic abnormalities||0003458|
|EMG: myotonic discharges||0100284|
|EMG: myotonic runs||0003730|
|EMG: positive sharp waves||0030007|
|Increased endomysial connective
|Increased variability in muscle fiber diameter||0003557|
Excessive inward curvature of lower spine
Abnormally large tongue
Increased size of tongue
[ more ]
|Right ventricular hypertrophy||0001667|
Winged shoulder blade
|Upper limb muscle weakness||
Decreased arm strength
[ more ]
[ more ]
|5%-29% of people have these symptoms|
Shortening of the achilles tendon
Tight achilles tendon
[ more ]
|Left ventricular systolic dysfunction||0025169|
Elongation of face
Increased height of face
Increased length of face
Vertical elongation of face
Vertical enlargement of face
Vertical overgrowth of face
[ more ]
|Neck flexor weakness||
Neck flexion weakness
Walking on tiptoes
|Percent of people who have these symptoms is not available through HPO|
Flexed joint that cannot be straightened
|Muscle fiber necrosis||0003713|
|Restrictive ventilatory defect||
Stiff lung or chest wall causing decreased lung volume
|Right ventricular dilatation||0005133|
|Skeletal muscle atrophy||
[ more ]
Making a diagnosis for a genetic or rare disease can often be challenging. Healthcare professionals typically look at a person’s medical history, symptoms, physical exam, and laboratory test results in order to make a diagnosis. The following resources provide information relating to diagnosis and testing for this condition. If you have questions about getting a diagnosis, you should contact a healthcare professional.
- Orphanet lists international laboratories offering diagnostic testing for this condition.
- Weight control to avoid obesity
Physical therapyand stretching exercises to promote mobility and prevent contractures
- Use of mechanical aids such as canes, walkers, orthotics, and wheelchairs as needed to help ambulation and mobility
- Monitoring and surgical intervention as needed for orthopedic complications such as foot deformity and
- Monitoring of respiratory function and use of respiratory aids when indicated
- Monitoring for evidence of diseases of the heart muscle (
- Social and emotional support and stimulation to maximize a sense of social involvement and productivity and to reduce the sense of social isolation common in these disorders
Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.
These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.
- MedlinePlus was designed by the National Library of Medicine to help you research your health questions, and it provides more information about this topic.
- Genetics Home Reference (GHR) contains information on Limb-girdle muscular dystrophy, type 2C. This website is maintained by the National Library of Medicine.
- The National Institute of Neurological Disorders and Stroke (NINDS) collects and disseminates research information related to neurological disorders. Click on the link to view information on this topic.
- The National Organization for Rare Disorders (NORD) has a report for patients and families about this condition. NORD is a patient advocacy organization for individuals with rare diseases and the organizations that serve them.
- GeneReviews provides current, expert-authored, peer-reviewed, full-text articles describing the application of genetic testing to the diagnosis, management, and genetic counseling of patients with specific inherited conditions.
- Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.
- The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
- Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine.
- Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
- PubMed is a searchable database of medical literature and lists journal articles that discuss Limb-girdle muscular dystrophy, type 2C. Click on the link to view a sample search on this topic.
- Glenn Lopate. Limb-Girdle Muscular Dystrophy. Medscape Reference. October 28, 2014; https://emedicine.medscape.com/article/1170911-overview.
- Kate Bushby. Limb-Girdle Muscular Dystrophies. NORD. 2012; https://rarediseases.org/rare-diseases/limb-girdle-muscular-dystrophies/.
- Victor A. McKusick. Limb-girdle muscular dystrophy type 2C. In: Cassandra L. Kniffin. OMIM Database. 8/4/2016; https://www.omim.org/entry/253700.
- Pegoraro E and Hoffman EP. Limb-Girdle Muscular Dystrophy Overview. GeneReviews. August 30, 2012; https://www.ncbi.nlm.nih.gov/books/NBK1408/.