Final answer:
Henoch-Schönlein Purpura (HSP) is a type of vasculitis often following an upper respiratory tract infection, potentially leading to renal involvement. Treatment is symptomatic, with steroids used for significant GI or renal disease.
Step-by-step explanation:
Henoch-Schönlein Purpura (HSP)
Henoch-Schönlein Purpura (HSP) is a form of vasculitis that affects the small blood vessels. It often follows an upper respiratory tract infection (URTI) and can manifest with a range of symptoms including a characteristic purpuric rash, arthritis, abdominal pain, and renal involvement. The most common cause of HSP is currently unknown, but it may be related to immune complex disease, which is seen in conditions such as glomerulonephritis, rheumatoid arthritis, and systemic lupus erythematosus.
When renal involvement occurs, such as in proteinuria or nephritic syndrome, HSP can become more serious, potentially leading to long-term kidney damage. The treatment of HSP is mainly symptomatic, focusing on managing pain and inflammation. Steroids can be used in cases where there is significant gastrointestinal or renal disease. Proper diagnosis and management are crucial for preventing potential complications like renal failure.