11 results
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... • Extremes of age ... cryoglobulins • Skin ... #Petechiae #Rash ... #dermatology #physicalexam
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... lesions (9.4%) • Maculopapular ... rash (6.7%) • ... vasculitis (inflamed blood ... #rash #diagnosis
Aplastic Anemia - Overview

Who?
• M = F
• 3 peaks:	1) Childhood	2) 15-25 years	3) >60 years

What?
• Aplastic anemia
Headaches • Pale skin ... bleeding, and petechiae ... Causes: • Constitutional ... result from low blood ... #diagnosis #management
Pigmented Purpuric Dermatoses (PPD) - Capillaritis

Group of chronic, benign, cutaneous eruptions characterized by the presence of
the presence of petechiae ... - This iron causes ... brown tint of the rash ... #differential #diagnosis ... #dermatology
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
just beneath the skin ... by bleeding (petechiae ... • Anemia • Aplastic ... Myelodysplastic #Syndromes #diagnosis ... #hematology #oncology
Acute Generalized Exanthematous Pustulosis (AGEP)

AGEP is largely a clinical diagnosis based on classical skin findings in
a clinical diagnosis ... Causes? ... is caused by medications ... Elevated white blood ... Exanthematous #Pustulosis #Dermatology
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
/sx urticaria, maculopapular ... rash, pruritis, ... due to marrow aplasia ... infections with skin ... #Transfusion #diagnosis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
pulses, bruits, or blood ... Takayasu: • Age ... , mucositis • Rash ... tract, and often causes ... vesicles, pustules, maculopapular
Leukemias Overview: ALL, CML, AML, APML, CLL

Acute leukemias > 20% blasts in the peripheral blood smear
-> AML: Blast crises ... Significant ↓ PLT: Petechiae ... CLL -> Invade Skin ... #Leukemia #Hematology ... #Oncology #Diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... mucositis - Rash ... Takayasu: - Age ... temporal artery - Age ... Large Vessel: Blood