15 results
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
Vesiculobullous ... Skin Rash - Differential ... Diagnosis Algorithm ... foliaceus - Infectious ... #SkinRash #dermatology
SKIN RASHES 



Skin rashes can occur from a variety of factors, including infections, heat, allergens, immune
factors, including infections ... rapid and accurate diagnosis ... rashes into these classes ... petechiae; #purpura; #rash ... ; #vesiculobullous
Capnocytophaga Canimorsus Skin Rash

40 M presents w/ N, V, severe epigastric pain. SHx: smoker, drinks 18
Canimorsus Skin Rash ... Diffuse blanching rash ... & latter can cause ... gram-negative bacillus cause ... the key to the diagnosis
Anaplasma Infection - Anaplasma phagocytophilum
Pathophysiology: 
 • Obligate, intracellular bacteria
 • Transmitted via blacklegged tick —
Anaplasma Infection ... shaking chills • Rash ... ), cough (30% cases ... #Anaplasma #Infection ... #diagnosis #microbiology
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
Pustular Skin Rash ... - Differential Diagnosis ... borders of lips Infectious ... #Pustular #SkinRash ... #Algorithm #causes
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Rash is usually ... chronicum migrans • Rash ... Fever + facial rash ... Erythemas #comparison #table ... #differential #diagnosis
Microbial Etiology of Acute Pharyngitis - IDSA
Bacterial
 • Group A streptococcus - Pharyngotonsillitis, scarlet fever
 •
Scarlatiniform rash ... croup • EBV - Infectious ... Pharyngitis #IDSA #diagnosis ... #differential #causes ... #bacteria #microbiology
Capnocytophaga
GNR with long fusiform shape.  Fastidious facultative anaerobe that grows slowly and needs enriched agar
C.
= most common cause ... shock with fever, rash ... Capnocytophaga #Infection ... #Diagnosis #Cats ... #Dogs #Microbiology
Rickettsialpox Eschar

40 homeless male from NY admitted with fever, chills, headache, myalgias. Diagnosis?
Rickettsialpox R akari classic
Diagnosis? ... fever, vesiclar rash ... Rash appears 3-4d ... suspected & seen in dogs ... clinical #photo #skinrash
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... Diagnosis? ... dermatophytes cause ... interdigital, moccasin & vesiculobullous ... Indiana University Infectious