2937 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 ... Bechet's Micro: TB ... Nodosum #Mnemonic #Causes
Tree in Bud Sign
The Tree-in-Bud sign represents Endobronchial spread in a linear branching pattern and centrilobular
It is caused by ... endobronchial TB ... actually seen in all causes ... pneumonia, congenital causes
Causes of CSF Lymphocytic Pleocytosis - Differential Diagnosis
Viral: Arbo, Adeno, Herpes, Entero, HIV
Fungal: Cryptococcus, Cocci, Histo,
Causes of CSF Lymphocytic ... Mycobacteria (TB ... Differential #Diagnosis #Causes
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Causes of Thrombocytosis ... e.g. autoimmune, TB ... Differential #Diagnosis #Causes
Causes of Adrenal Insufficiency - Differential Diagnosis Algorithm
ACTH-Dependent (Secondary):
 • Pituitary Dysfunction
 • Hypothalamic Dysfunction
ACTH-Independent (Primary):
Causes of Adrenal ... • Infectious: TB ... Diagnosis #Algorithm #Causes
Causes of False-Positive and False-Negative IGRA and TST Results

#Diagnosis #TB #Tuberculosis #Tuberculin #SkinTest #TSTs #IGRA #FalseNegatives
Causes of False-Positive ... #Diagnosis #TB ... FalsePositives #Causes
Neck Mass - Differential Diagnosis Framework
Inflammatory:
 • Viral (reactive): EBV, HIV
 • Bacterial: Staph/Strep, Tularemia, Brucella
Granulomatous: TB ... Differential #Diagnosis #causes
Colitis - Differential Diagnosis by Segment Location

Ascending Colon:
 - Shigella
 - Salmonella
 - Amebic colitis
Hepatic flexure:
- Yersinia - TB ... Diagnosis #Map #Causes
Ascites - Diagnostic Approach and Differential Diagnosis
The most common causes: cirrhosis, malignancy and heart failure. Approx
The most common causes ... more than one cause ... e.g. cirrhosis + TB ... perforation), TB ... smear/culture/ADA (TB
Causes of Encephalopathy - Differential Diagnosis Algorithm
Hyperacute:
 - Primary Neurologic: Vascular (IS, ICH), Seizure, Migraine, Trauma
Causes of Encephalopathy ... Infectious (fungal, TB ... Diagnosis #Algorithm #Causes