Mixed connective tissue disease
Other Names for this Disease
A condition called Raynaud's phenomenon sometimes occurs months or years before other symptoms of MCTD. Most people with MCTD have pain in multiple joints, and/or inflammation of joints (arthritis). Muscle weakness, fevers, and fatigue are also common.
Other signs and symptoms may include:
- accumulation of fluid in the tissue of the hands that causes puffiness and swelling (edema)
- skin findings including lupus-like rashes (including reddish brown patches), reddish patches over the knuckles, violet coloring of the eyelids, loss of hair (alopecia), and dilation of small blood vessels around the fingernails (periungual telangiectasia)
- dysfunction of the esophagus (hypomotility)
- abnormalities in lung function which may lead to breathing difficulties, and/or pulmonary hypertension
- heart (cardiac) involvement (less common in MCTD than lung problems) including pericarditis, myocarditis, and aortic insufficiency
- kidney (renal) disease
- neurologic abnormalities (in about 10 percent of people with MCTD) such as trigeminal sensory neuropathy; organic brain syndrome; blood vessel narrowing causing "vascular" headaches; a mild form of meningitis; seizures; blockage of a cerebral vessel (cerebral thrombosis) or hemorrhage; or various sensory disturbances in multiple areas of the body (multiple peripheral neuropathies)
- anemia and leukopenia (in 30 to 40 percent of cases)
- lymphadenopathy, enlargement of the spleen (splenomegaly), enlargement of the liver (hepatomegaly), or intestinal involvement in some cases
The Human Phenotype Ontology provides the following list of signs and symptoms for Mixed connective tissue disease. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms.
The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature.
The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined.
Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
- MIXED CONNECTIVE TISSUE DISEASE (MCTD). NORD. October 12, 2007; http://www.rarediseases.org/rare-disease-information/rare-diseases/byID/338/viewAbstract. Accessed 6/3/2014.