C	C26847	Polyarteritis Nodosa	Polyarteritis Nodosa	Classic Polyarteritis Nodosa|PAN|Panarteritis Nodosa|Periarteritis Nodosa	A necrotizing vasculitis that affects medium-sized arteries, it is usually idiopathic, and may be triggered by viral infections (Hepatitis B, also others). A multisystem disease, it most commonly affects skin (nodules, livedo reticularis) and peripheral nerves; higher morbidity is associated with gastrointestinal, central nervous system, cardiac, and/or other organ involvement. Anti-neutrophil cytoplasmic antibodies (ANCA) are typically negative.	A necrotizing vasculitis that affects medium-sized arteries, it is usually idiopathic, and may be triggered by viral infections (Hepatitis B, also others). A multisystem disease, it most commonly affects skin (nodules, livedo reticularis) and peripheral nerves; higher morbidity is associated with gastrointestinal, central nervous system, cardiac, and/or other organ involvement. Anti-neutrophil cytoplasmic antibodies (ANCA) are typically negative.	C26912	Vasculitis			C118468	Pediatric Rheumatology Terminology		
C	C35109	Anterior Uveitis	Anterior Uveitis		Inflammation of the iris and anterior chamber of the eye.	Inflammation of the anterior uveal tract.	C26909	Uveitis			C118468	Pediatric Rheumatology Terminology		
D	C29505	Topical Corticosteroid	Topical Corticosteroid		Any synthetic steroid derivative exhibiting the same function as the naturally occurring corticosteroid hormone, formulated for topical application. Topical corticosteroids are applied to the skin where it exerts its effect, however, corticosteroids can be absorbed systemically after being applied locally. Topical corticosteroids are mainly used for the localized treatment of inflammation of the skin and help relieve symptoms such as itching, swelling and redness.	A corticosteroid formulation designed for and administered onto a dermal, ocular or mucosal surface.	C2322	Corticosteroid			C118468	Pediatric Rheumatology Terminology		
D	C80510	Steroid, Systemic	Systemic Corticosteroid	Systemic Steroid	Synthetically made hormones possessing the steroid ring system; e.g., androgens, estrogens, and adrenocortical hormones. This does not include topical or inhaled steroid therapy.	Systemically-delivered (oral, intramuscular, intravenous) corticosteroids.	C2322	Corticosteroid			C118468	Pediatric Rheumatology Terminology