By Disease Name > Chancroid

Chancroid

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painful, dirty, purulent
painful inguinal, usually unilateral lymphadenopathy
break down to buboes (25%)
“kissing lesions” secondary to autoinoculation
Haemophilus ducreyi
IM ceftriaxone

 

diagnosis:

culture on heart infusion agar special media not widely available = blood of sheep, rabbit plus vancomycin (because lesions are dirty)
gram stain = “school of fish”;  gram (-) coccobacillus (short and compact) (look like a “closed safety pin”)
mnemonic “at the fish school there are kissing contests”