54 results
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
Pathophysiology: ... trauma, infection, vasculitis ... process such as vasculiitis ... #Diagnosis #Dermatology ... #Rash #Petechiae
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
semiology of Cutaneous Vasculitis ... Identification of causes ... • Drug-induced vasculitis ... #dermpath #dermatology ... #semiology #signs
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
- Pathophysiology ... Ill-appearing, vital sign ... New-onset fever with rash ... #Diagnosis #Dermatology ... #Rash #Maculopapular
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Infection - Vasculitis ... - Autoimmune Vasculitis ... Diagnosis #Algorithm #Causes ... #dermatology #physicalexam
Erythroderma - Diagnostic Algorithm. Pathophysiology: 1) Extensive cutaneous capillary dilation, results in widespread exfoliation of the
Pathophysiology: ... Causes: 1) Exfoliative ... #Diagnosis #Dermatology ... #Rash #Erythroderma
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
hair follicles -> causes ... Malar (butterfly) Rash ... Livedo Reticularis, Vasculitis ... Manifestations #pathophysiology ... #diagnosis #signs
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Maculopapular rash ... Polyangiitis #GPA #dermatology ... #rash #diagnosis ... #rheumatology
Anaplasma Infection - Anaplasma phagocytophilum
Pathophysiology: 
 • Obligate, intracellular bacteria
 • Transmitted via blacklegged tick —
phagocytophilum Pathophysiology ... within morulae Signs ... shaking chills • Rash ... is rare (< 10% cases ... ), cough (30% cases
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
invade URT & via hematologic ... & hemorrhagic rash ... CNS and hematologic ... Vesicular & pruritic rash ... peds #pediatrics #pathophysiology
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Secondary Syphilis Rash ... The signs and symptoms ... resembling rashes caused ... Diagnosis #Clinical #Photo ... #Dermatology