Public condition directory
Browse public condition summaries from China medical resources by stable specialty category.
Panniculitis
Panniculitis is a group of immune diseases characterized by sterile inflammation of adipose tissue as the main pathological change. Its clinical features are recurrent fever and painful subcutaneous fatty plaques or nodules.
View detailsCryoglobulinemia
Cryoglobulinemia is a condition in which cryoglobulins are present in the blood. Cryoglobulins are immunoglobulins that spontaneously precipitate at temperatures below 37°C and redissolve upon warming. There are three types of cryoglobulinemia: Type I consists of only one type of monoclonal immunoglobulin, most commonly IgM, followed by IgG and IgA, which readily form flocculent precipitates in the cold. Type II is a mixed type containing one monoclonal immunoglobulin, with the IgM-IgG type being the most common. Type III is a mixed type of polyclonal cryoglobulins.
View detailsRheumatic fever
Rheumatic fever is an autoimmune disease caused by the body's immune system attacking its own normal tissues after a throat infection with group A beta-hemolytic streptococcus. It commonly affects people aged 5 to 15 years and is more prevalent during the winter and spring rainy seasons. Key symptoms include migratory polyarthritis, carditis, subcutaneous nodules, erythema marginatum, and chorea.
Takayasu arteritis
Takayasu arteritis is a chronic, multifocal, non-specific inflammatory disease affecting the aorta and its branches. It typically occurs between 10 and 40 years of age, with 80% to 90% of cases being female. Symptoms include weakened or absent pulses, claudication, and dizziness.
View detailsBehcet's disease
Behcet's disease, also known as Behcet syndrome or the oculo-oral-genital syndrome, is a chronic, variable, systemic vasculitis. It is clinically characterized by recurrent oral ulcers, genital ulcers, and ocular inflammation, and can also involve multiple organs such as the digestive, cardiovascular, and nervous systems. Due to its prevalence in East Asia, the Middle East, and the Mediterranean region, it is often referred to as "Silk Road disease." The disease commonly affects individuals aged 16-40 years, with no significant difference in incidence between sexes, although organ involvement is more frequently observed in male patients.
View detailsPOEMS syndrome
POEMS syndrome is a clonal plasma cell disorder characterized by a combination of abnormalities, including polyneuropathy, organomegaly, endocrinopathy, monoclonal protein, and skin changes. The name of the syndrome is an acronym derived from the first letter of each of these features. It predominantly affects males between 40 and 60 years of age. Common symptoms include paresthesia in the limbs, such as a pins-and-needles sensation or a glove-and-stocking distribution, along with muscle weakness, hepatosplenomegaly, endocrine dysfunction, and skin hyperpigmentation.
View detailsReactive arthritis
Reactive arthritis is a type of joint pain and swelling that is triggered by an infection in another part of the body, most commonly the intestines or genitourinary tract.
View detailsUndifferentiated spondyloarthropathy
Undifferentiated spondyloarthritis refers to a disease that presents with some clinical and/or radiological features of spondyloarthritis but is atypical, failing to meet the diagnostic criteria for any established form of spondyloarthritis. It is more common in males, with an onset age of 16-23 years. The average age of onset in females is higher than in males.
View detailsMixed connective tissue disease
Mixed connective tissue disease (MCTD) is a clinical syndrome characterized by high titers of speckled antinuclear antibody (ANA) and anti-U1RNP antibody in the serum. It presents with features such as Raynaud's phenomenon, swollen hands, polyarthralgia or arthritis, sclerodactyly, myositis, esophageal dysmotility, and pulmonary hypertension.
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