Nodes

An increased reactivity to specific antigens mediated not by antibodies but by sensitized T CELLS.

Hypersensitivity reactions which occur within minutes of exposure to challenging antigen due to the release of histamine which follows the antigen-an…

Group of diseases mediated by the deposition of large soluble complexes of antigen and antibody with resultant damage to tissue. Besides SERUM SICKNE…

Exuberant inflammatory response towards a previously acquired or undiagnosed opportunistic infection. It is frequently seen in AIDS patients followin…

Disorders caused by abnormal or absent immunologic mechanisms, whether humoral, cell-mediated, or both.

A spectrum of systemic autoimmune diseases in which IMMUNOGLOBULIN G4 plays a pathophysiologic role. It can affect multiple organs in highly variable…

Syndromes in which there is a deficiency or defect in the mechanisms of immunity, either cellular or humoral.

Disorders characterized by abnormal proliferation of primary cells of the immune system or by excessive production of immunoglobulins.

Allergic reaction to products containing processed natural rubber latex such as rubber gloves, condoms, catheters, dental dams, balloons, and sportin…

A chronic form of cutaneous lupus erythematosus (LUPUS ERYTHEMATOSUS, CUTANEOUS) in which the skin lesions mimic those of the systemic form but in wh…

A chronic, relapsing, inflammatory, and often febrile multisystemic disorder of connective tissue, characterized principally by involvement of the sk…

A spectrum of primary, secondary, and idiopathic disorders involving MAST CELLS and characterized by an aberrant release of mast cell mediators which…

A clinically and genetically heterogeneous group of mast cell disorders in which there is aberrant release of mast cell mediators with little to no a…

Allergic reaction to milk (usually cow's milk) or milk products. MILK HYPERSENSITIVITY should be differentiated from LACTOSE INTOLERANCE, an intolera…

A syndrome with overlapping clinical features of systemic lupus erythematosus, scleroderma, polymyositis, and Raynaud's phenomenon. The disease is di…

Inflammation of a muscle or muscle tissue.

A disease characterized by bony deposits or the ossification of muscle tissue.

Progressive myopathies characterized by the presence of inclusion bodies on muscle biopsy. Sporadic and hereditary forms have been described. The spo…

Chronic inflammatory conditions affecting the axial joints which cannot be detectable on x-rays. It is characterized by pain, stiffness of joints and…

Allergic reaction to tree nuts and peanuts, including other LEGUMES, that is triggered by the immune system. It includes co-sensitization to other fo…

Allergic reaction to tree nuts that is triggered by the immune system.

Allergic reaction to certain foods, including fresh fruits, vegetables and nuts which share CROSS REACTIONS to allergens from trees, grass or pollens…

Inflammation of the extraocular muscle of the eye. It is characterized by swelling which can lead to ischemia, fibrosis, or ORBITAL PSEUDOTUMOR.

A progressive, degenerative joint disease, the most common form of arthritis, especially in older persons. The disease is thought to result not from …

Noninflammatory degenerative disease of the hip joint which usually appears in late middle or old age. It is characterized by growth or maturational …

Noninflammatory degenerative disease of the knee joint consisting of three large categories: conditions that block normal synchronous movement, condi…

A degenerative joint disease involving the SPINE. It is characterized by progressive deterioration of the spinal articular cartilage (CARTILAGE, ARTI…

A condition chiefly characterized by thickening of the skin of the head and distal extremities, deep folds and furrows of the skin of the forehead, c…

Inflammation of a bone and its overlaying CARTILAGE.

A type of osteochondritis in which articular cartilage and associated bone becomes partially or totally detached to form joint loose bodies. Affects …