2811 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Mnemonic NO cause ... found in 60% of cases ... Campylobacter, Rickettsiae ... Nodosum #Mnemonic #Causes
Causes of CSF Lymphocytic Pleocytosis - Differential Diagnosis
Viral: Arbo, Adeno, Herpes, Entero, HIV
Fungal: Cryptococcus, Cocci, Histo,
Causes of CSF Lymphocytic ... , M.pneumonia, Rickettsia ... Differential #Diagnosis #Causes
Causes of Adrenal Insufficiency - Differential Diagnosis Algorithm
ACTH-Dependent (Secondary):
 • Pituitary Dysfunction
 • Hypothalamic Dysfunction
ACTH-Independent (Primary):
Causes of Adrenal ... Aureus, Strep, Rickettsia ... Diagnosis #Algorithm #Causes
Causes of Erythema Nodosum
Common
 - Idiopathic (up to 55 percent)
 - Infections: streptococcal pharyngitis (28 to
Causes of Erythema ... Campylobacter spp., rickettsiae ... Erythema #Nodosum #Causes
Causes of Myocarditis 
1. Infectious Myocarditis
 • Bacterial - Staphylococcus, Streptococcus, Pneumococcus, Meningococcus, Gonococcus, Salmonella, Corynebacterium
Causes of Myocarditis ... Taenia solium • Rickettsial ... (Q fever), R. rickettsia ... more commonly cause ... #Myocarditis #Causes
Doxycycline - Coverage and Indications
 • Staphylococci (S aureus + CoNS)
 • The tick stuff: Borrelia
disease), Anaplasma, Rickettsia ... • "Atypical" causes
Fever After International Travel

Infectious Disease:
• Endemic in either the destination or home region

Viral Syndromes:
Arboviral infections, a
infections, a common cause ... • Rickettsial ... African tick typhus (caused ... by Rickettsia africae ... sample (e.g., for rickettsia
MIAMI Mnemonic for Differential Diagnosis of Lymphadenopathy
Malignancies
 - Kaposi sarcoma, leukemias, lymphomas, metastases, skin neoplasms
Infections
 -
Lyme disease, rickettsial ... sarcoidosis Iatrogenic causes
Rickettsiae: Spotted Fever group

R. rickettsii 
R. parkeri 
R. philipii / Rickettsia 364D
R. africae 
R. australis 
R.
Rickettsiae: Spotted ... Fever group R. rickettsii ... R. philipii / Rickettsia ... reserved for severe rickettsial ... #Rickettsiae #SpottedFever
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
pneumonia • Rickettsial ... Typhoid fever • Rickettsiae ... Non-Infectious Causes