18 results
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
Petechiae/Purpura ... - Diagnostic Algorithm ... Pathophysiology: ... #Dermatology #Rash ... #Petechiae #Purpura
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Rarely dominate the clinical ... Maculopapular rash ... Differential Diagnosis ... Polyangiitis #GPA #dermatology ... #rash #diagnosis
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Clinical Features ... Photosensitivity, Butterfly rash ... , Vasculitis, Purpura ... ) Blood (75%): Anemia ... signs #symptoms #diagnosis
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
(Petechial or purpuric ... rash) • Heart, ... with leukopenia, anemia ... Activation #Syndrome #Diagnosis ... #Management #Hematology
Capnocytophaga Canimorsus Skin Rash

40 M presents w/ N, V, severe epigastric pain. SHx: smoker, drinks 18
Bandemia, AKI. ... +purpuric rash → ... purpura fulminans ... the key to the diagnosis ... #dermatology #clinical
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
protein C and S Pathophysiology ... organ damage Clinical ... Petechiae • Purpura ... #Coagulation #diagnosis ... treatment #management #hematology
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
Normal: < 1% Clinically ... Differential Diagnosis ... likelihood of negative clinical ... neutrophil #WBC #CBC #hematology ... #pathophysiology
General Approach to Anemia - Differential Diagnosis Framework
1) Check reticulocyte count to determine if hypo/hyper-proliferative
2) Exclude
General Approach to Anemia ... - Differential Diagnosis ... haptoglobin) 3) Use MCV ... & clinical context ... #hematology #algorithm
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
(blue-purple) rash ... • Erythematous rash ... dorsal part of the MCP ... auricular papules Clinical ... #dermatology #diagnosis
Cutaneous larva migrans skin Rash
25 F recent Caribbean vacation, walked barefoot on sand and now with
. diagnosis? ... self-limited Diagnosis ... is clinical & labs ... larva #migrans #skinRash ... #dermatology #clinical