47 results
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis
 • Infection: Extrapulmonary tuberculosis, Abscess, Endocarditis,
Causes of Fever ... Diagnosis • Infection ... Malignancy: - Hematologic ... carcinoma • Non-infectious ... vasculitis to cause
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
procedures - Infection ... peripheral blood smear ... PT, aPTT(liver disease ... dysplasia on the smear ... #Workup #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Bone marrow disease ... SLE) - Viral infections ... APLS • Acute Infectious ... mountain spotted fever ... Differential #Diagnosis #hematology
Borrelia recurrentis on Peripheral Blood Smear
23M Somali refugee recently arrived w/severe abd pain, confusion and fever
Peripheral Blood Smear ... diagnosed with a blood smear ... sensitivity of blood smear ... Infectious Diseases ... #recurrentis #BloodSmear
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
early localized disease ... called "Bazin's disease ... so-called fifth disease ... association is that smear ... differential #diagnosis #dermatology
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... Fever/Chills/Joint ... Acute rheumatic fever ... Effusions: - Hematologic ... Knee #Effusions #causes
Classification of Diabetes Insipidus

Central or neurogenic diabetes insipidus:
 - Congenital - Structural malformations affecting the hypothalamus
encoding AVP-NPII precursor ... or metastases, Infection ... granulomatous diseases ... uropathy, Metabolic causes ... Classification #Types #Nephrology
Hemolytic Anemia - Differential Diagnosis Algorithm
Hereditary:
 • Peripheral blood smear + DAT + further History
 •
Peripheral blood smear ... malignancy, autoimmune disease ... Recent travel/Fevers ... , DAT (-) → Infection ... Diagnosis #Algorithm #causes
Vibrio Vulnificus skin infection
Cirrhosis w/recent consumption of raw oysters w/rapidly evolving rash. 
Vibrio vulnificus part of
Vulnificus skin infection ... Rapid onset of fever ... chronic liver disease ... Diseases Fellowship ... rash #cellulitis #dermatology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
• Clinical: fever ... • Autoimmune diseases ... Adult-onset Still disease ... Drugs, Unknown cause ... treatment #summary #rheumatology