13 results
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Causes of Polycythemia ... Erythrocytosis) - Differential ... Abdominal Ultrasound ... Erythrocytosis #Differential ... #Hematology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... Skin biopsy • Abdominal ... ultrasound # ... #dermatology #physicalexam
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Maculopapular rash ... /subcutaneous nodules ... reticularis Differential ... Polyangiitis #GPA #dermatology
Portal venous gas on hepatic ultrasound: A concerning finding in the critically ill patient that should
on hepatic ultrasound ... reflection on the differential ... ileus), intra-abdominal ... variety of other causes ... #hepatology #liver
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Mucous patches on oral ... genital, anal or oral ... resembling rashes caused ... secondary syphilis are so ... Clinical #Photo #Dermatology
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Rash is usually ... form of acquired dermal ... B19 infection (so-called ... comparison #table #differential ... #diagnosis #dermatology
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
fulminans • Subcutaneous ... Thrombocytopenia - Normal ... Treat primary cause ... - APTT < 1.5 x normal ... treatment #management #hematology
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
Polycythemia - Differential ... there so many RBCs ... Better call hematology ... exogenous, EPO levels: normal ... Algorithm #workup #hematology
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)
Definition: 
 • Severe adverse drug reaction, characterized by
extensive skin rash ... Edema in 70% of cases ... Resolution > 15 days Differentials ... Oral/IV Glucocorticoids ... DRESS #Syndrome #dermatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... - GI tract: abdominal ... mucositis - Rash ... - Recurrent oral ... Supply gut -> abdominal