13 results
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
parallel to lines of skin ... - Differential diagnosis ... : secondary syphilis ... rosea #clinical #dermatology ... #photo #PhysicalExam
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
on erythematous base ... Antiphospholipid-antibody syndrome ... Sarcoidosis #dermatology ... #differential #diagnosis ... #rheumatology
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Rash Secondary ... Skin rash and malaise ... #Rash #Diagnosis ... #Clinical #Photo ... #Dermatology
Central Distribution, Febrile / Ill:
 - Viral Exanthem 
 - Lyme Disease (erythema migrans) 
Central Distribution,
Stevens-Johnson Syndrome ... meningococcaemia - Syphilis ... Macules #Papules #Rash ... #Algorithm #Diagnosis ... #Dermatology #Skin
Erythematous Rashes - THE ALGORITHMIC APPROACH

Characterized by diffuse redness of the skin due to
capillary congestion, erythematous
redness of the skin ... from other rashes based ... syndrome (SSS) ... erythematous rash ... #Diagnosis #Dermatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Maculopapular rash ... Differential Diagnosis ... • Goodpasture syndrome ... #rash #diagnosis ... #rheumatology
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin ... Rash - Differential ... silvery scale on elbows ... • Secondary Syphilis ... Papulosquamous #SkinRash #dermatology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Macrophage Activation ... Petechial or purpuric rash ... #Syndrome #Diagnosis ... #Management #Hematology ... #Rheumatology
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
- Differential Diagnosis ... Generalized itchy rash ... SAPHO syndrome ( ... Secondary syphilis ... #Dermatology
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
Overwhelming clinical syndrome ... excessive macrophage activation ... Diagnosis via genetic ... response HLH-94-based ... management #treatment #hematology