10 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Dermatomyositis Erythema ... Lyme disease Erythema ... • Rheumatic fever ... Sarcoidosis #dermatology ... #rashes #differential
Erythematous Rashes - THE ALGORITHMIC APPROACH

Characterized by diffuse redness of the skin due to
capillary congestion, erythematous
or absence of fever ... If fever is present ... disease, scarlet fever ... but without a fever ... #Diagnosis #Dermatology
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
instability - New-onset fever ... sulfa-drug - Skin ... #Diagnosis #Dermatology ... #Differential # ... Ddxof
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
known as rat bite fever ... or Haverhill fever ... • Fever + facial ... acute rheumatic fever ... diagnosis #dermatology
Combination of Skin Findings and Arthritis in Pediatrics Patient - Differential Diagnosis
Malar rash: 
 • A
Pediatrics Patient - Differential ... Suggestive of: Rheum Fever ... Erythema migrans ... gabrieltalledop #dermatology ... #differential #
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
purple, hemorrhagic skin ... mountain spotted fever ... reactions • Erythema ... #Diagnosis #hematology ... #nonpalpable #dermatology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia - Differential ... Diagnosis Algorithm ... bartonella (oroya fever ... #Diagnosis #Algorithm ... #workup #hematology
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)
Definition: 
 • Severe adverse drug reaction, characterized by
to a coalescing erythema ... Fever >38.5 2. ... Skin involvement ... Resolution > 15 days Differentials ... DRESS #Syndrome #dermatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Diagnosis Algorithm ... Red Flags: • Fever ... deficiency Work ... cryoglobulins • Skin ... #Causes #dermatology
Hodgkin's Lymphoma Overview

Hodgkin's lymphoma (HL) is an uncommon hematological malignancy arising from mature B cells. It
• Dyspnea • Fever ... • Pruritis • Erythema ... Hodgkin Lymphoma Workup ... Immunohistochemical studies (to differentiate ... classification #hematology