22 results
SKIN RASHES 



Skin rashes can occur from a variety of factors, including infections, heat, allergens, immune
immune system disorders ... into petechial/purpuric ... erythematous, maculopapular ... rashes into these classes ... ; #petechiae; #purpura
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
, vascular disorders ... , coagulation disorders ... , or other causes ... • Coagulation disorders ... • Secondary Causes
Causes of Purpura - Differential Diagnosis
Disruption in Vascular Integrity: 
 • Trauma, Infection, Vasculitis, Drug induced
Causes of Purpura ... collagen vascular disorders ... C), Pigmented purpuric ... BrighamChiefs #Purpura ... nonpalpable #palpable #Causes
Skin Hypopigmentation - Differential Diagnosis Algorithm

Diffuse Congenital - Generalized hypopigmentation of hair, eyes, skin
 • Phenylketonuria
hyperpigmented) • Pityriasis ... Hypopigmentation #disorders ... Diagnosis #Algorithm #causes
Disorders of Pigmentations - Hypopigmentation and Hyperpigmentation - Differential Diagnosis Algorithm

HYPOPIGMENTATION
Diffuse Congenital - Generalized hypopigmentation of
Disorders of Pigmentations ... hyperpigmented) • Pityriasis ... Hyperpigmentation #disorders ... Diagnosis #Algorithm #causes
Adult-Onset Still's Disease (AOSD)
Rare inflammatory disorder of unknown etiology, difficult to diagnose because of heterogenous presentation.
Rare inflammatory disorder ... salmon-colored maculopapular ... BrighamChiefs #AdultOnset
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... Arthralgia - Purpura ... Cryoglobulins Cause ... triad of Palpable purpura ... Henoch-Schönlein purpura
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
thrombocytopenic purpura ... skin (alopecia, purpura ... , palpable purpura ... , maculopapular ... Nephrocalcinosis causes
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Petechiae, Palpable purpura ... lesions (9.4%) • Maculopapular ... Vesicles overlying purpuric ... Henoch-Schönlein purpura
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Vasculitis - Collagen disorders ... Henoch Schonlein Purpura ... Non-Palpable Rash: - Purpura ... Diagnosis #Algorithm #Causes