seasonal allergic rhinitis
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Seasonal Allergic Rhinitis

Seasonal allergic rhinitis, commonly referred to as hay fever, is an immunoglobulin E (IgE)-mediated allergic condition characterized by nasal inflammation triggered by seasonal allergens such…
scrub typhus
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Scrub Typhus

Scrub typhus, also known as tsutsugamushi disease, is a potentially fatal mite-borne rickettsial infection caused by Orientia tsutsugamushi. Endemic to the “tsutsugamushi triangle” extending across…
sclerotherapy-induced esophageal ulcer
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Sclerotherapy-Induced Esophageal Ulcer

Sclerotherapy is a common medical procedure used to treat esophageal varices, particularly in patients with liver cirrhosis. While the procedure is generally effective in controlling…
scleroderma renal crisis
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Scleroderma Renal Crisis

Scleroderma renal crisis (SRC) is an acute, life-threatening complication of systemic sclerosis (scleroderma) characterized by rapid onset of severe hypertension and acute kidney injury. It…
scleroderma
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Scleroderma

Scleroderma, also known as systemic sclerosis, is a rare and chronic autoimmune connective tissue disease characterized by hardening and tightening of the skin and connective…
schistosomiasis
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Schistosomiasis

Schistosomiasis, also known as bilharzia, is a neglected tropical disease caused by parasitic flatworms of the genus Schistosoma. This chronic condition is endemic in regions…
scarlet fever
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Scarlet Fever

Scarlet fever is a bacterial illness primarily affecting children aged 5–15. Caused by Group A Streptococcus (GAS), the same bacteria responsible for strep throat, it…
scabies
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Scabies

Scabies is a highly contagious skin infestation caused by the Sarcoptes scabiei var. hominis mite. It leads to intense pruritus, particularly at night, and is…
salpingitis
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Salpingitis

Salpingitis refers to the inflammation of one or both fallopian tubes and represents a significant component of pelvic inflammatory disease (PID). Often caused by ascending…