#idboardreview 40 M injected heroin boiled with tap water, previously used needle: next day developed periorbital swelling, eyelid erythema, pain and blurred vision of one eye. Dx? #medEd#idmedEd#IDtwitter
endophthalmitis by GPR #Bacillus cereus Gp (non-anthracis) after injection drug use. +spore-forming rod produces toxins, including multiple enzymes, associated w/ GI illness & asymptomatic fecal carriage. Case reports of endogenous endophthalmitis after IDU reported but rare
>90% of infect endophthalmitis: exogenous exposure to organisms:penetrating trauma, surgery, injection of meds into vitreous, or from direct extension from corneal source. CoNS strep cutibacterium post surgery/vitreal injections. Bacillus cereus: >70% post penetrating trauma
Endogenous endophthalmitis may occur with bacteremia associated w/ endocarditis (often Staph aureus or strep), IDU: serratia, liver abscess (Asia, caused by GNR including Klebsiella), in immunocompromised and/or hospitalized pt w/ indwelling catheters: candida
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Culture of the swab of the lesion on the chest grew #Trichosporon beigelii
#Trichosporon beigelii yeast in soil & water. In humans, it colonizes skin, GI & GU. It cause superficial skin infections, such as white piedra. In immunocompromised hosts: deep invasive infections, including fungemia, endocarditis and chronic meningitis
#idboardreview A family visited different U.S. states during a 1week vacation. Seam in hotel pools & waterpark. 8 days post trip, 2 family members had diarrhea. Dx? #medEd#idmedEd#idtwitter
#Cryptosporidiosis outbreaks in the U.S. have been linked to swimming pools, water playgrounds, and other swimming venues; unpasteurized cider, juice, and milk; contact with animals; childcare settings; camps; and ill food handlers.
#idboardreview 45 F w/ 1 cm nodule located near a scar from a previous mastectomy. +travel to several western & central European countries within the past year. The nodule was removed and tissue sections shown. Dx? #medEd#idmedEd#IDtwitter
#dirofilaria#repens
-definitive hosts include primarily wild and domestic canids, and occasionally felids
-various mosquito vectors from the genera Aedes, Culex, and Anopheles
#idboardreview 30 MSM PLWH Cd4 800 VL<20 on ART presents w/ 2wk abd cramps & watery diarrhea. Blood agar: translucent, flat bacterial colony that appeared to spread across plate. Dx? #medEd#idmedEd#IDtwitter
#Shigellosis acute diarrhea, vomiting & abdominal cramps. (1) Stools often contain blood, although some have watery diarrhea. Rarely, severe shigellosis may be complicated by rectal prolapse, intestinal obstruction & colonic perforation. Post infect Reactive arthritis 1-2 wks