11 results
RASHonal Approach to a Rash

- Dr. Arielle Klepper @ https://twitter.com/ArielleKlepper

#Rash #Algorithm #RASHonal #Differential #Diagnosis #Classification #Skin
Approach to a Rash ... ArielleKlepper #Rash ... #Algorithm #RASHonal ... #Differential #Diagnosis ... #Classification
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
Maculopapular - Diagnostic ... Algorithm Pathophysiology ... New-onset fever with rash ... #Dermatology #Rash ... Color #Targetoid #Algorithm
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... staining): • Low Complement ... Idiopathic • Normal Complement ... #differential #diagnosis ... #algorithm #rheumatology
Erythroderma - Diagnostic Algorithm. Pathophysiology: 1) Extensive cutaneous capillary dilation, results in widespread exfoliation of the
Erythroderma - Diagnostic ... Algorithm. ... Pathophysiology: ... Skin-homing T-cells #Diagnosis ... #Dermatology #Rash
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
Petechiae/Purpura - Diagnostic ... Algorithm. ... Pathophysiology: ... pulmonary #Diagnosis ... #Dermatology #Rash
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
antigen, leading to complement ... Complement activation ... Hypersensitivity #Types #Classification ... #Pathophysiology ... #Allergy #Diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... Urticaria and hypocomplementemia ... mucositis - Rash ... against MPO • Complement ... #rheumatology #classification
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
- Differential Diagnosis ... Algorithm Hodgkin ... Lymphoproliferative #Disorders #Classification ... #pathophysiology ... #Hematology #Diagnosis
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
anti-Smith Ab, low complements ... Skin Disease Classification ... Differential Diagnosis ... RNP antibodies, Complement ... Erythematosus #Diagnosis
IGG-4 RELATED DISEASE

WHAT?
 • A chronic, immune-mediated fibroinflammatory disease with tumefactive infiltration of IgG4+ plasma cells
dysfunction PATHOPHYSIOLOGY ... breast, skin DIAGNOSIS ... - ↑ IgE, ↓ complement ... • Classification ... #IGG-4 #IGG4 #Diagnosis