59 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Joint Pain Rash ... Malar rash ... • Rheumatic fever ... #rashes #differential ... #diagnosis #rheumatology
Erythematous Rashes - THE ALGORITHMIC APPROACH

Characterized by diffuse redness of the skin due to
capillary congestion, erythematous
redness of the skin ... , the differential ... rash but without ... Rash #Algorithm ... #Differential
Combination of Skin Findings and Arthritis in Pediatrics Patient - Differential Diagnosis
Malar rash: 
 • A
Diagnosis Malar ... Suggestive of: Rheum Fever ... migrans: • Target sign ... Suggestive of Lyme infection ... #differential #
Lymphocutaneous Sporotrichiosis Infection

Landscaper w/ painless nodular rash of arm present for months wax and wane; diagnosis?
Lymphocutaneous
painless nodular rash ... wax and wane; diagnosis ... trauma leads to skin ... Papulonodular, erythematous ... #clinical #photo
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
parallel to lines of skin ... palms/soles - Differential ... diagnosis: secondary ... nummular eczema, tinea ... #dermatology #photo
Rubella (German Measles)
Rubella, also called German measles, often presents with a mild febrile illness with a
maculopapular rash ... Congenital infection ... • Low grade fever ... • Erythematous ... Peds #Pediatrics #Diagnosis
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin ... Rash - Differential ... Erythrematous ... Auspitz sign, Koebner's ... Herald's atch • Tinea
SKIN RASHES 



Skin rashes can occur from a variety of factors, including infections, heat, allergens, immune
factors, including infections ... rapid and accurate diagnosis ... the presence of fever ... and systemic signs ... petechiae; #purpura; #rash
Scarlet fever
• Delayed-type skin reactivity to pyrogenic exotoxin Requires prior exposure
• Diffuse erythematous eruption that generally
Scarlet fever • ... Delayed-type skin ... exposure • Diffuse erythematous ... #diagnosis #clinical ... #photo #signs #
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Diffuse and Focal) Differential ... Diagnosis Algorithm ... • Tinea capitis ... - Secondary to Skin ... Shafts • Tinea