10 results
Algorithm for Diagnosis of the Petechial / Purpuric Rash

Febrile/Toxic, Palpable: 
 - Meningococcaemia, Disseminated Gonococcal Infection,
/ Purpuric Rash ... - Autoimmune Vasculitis ... #Purpuric #Petechiae ... #Purpura #Rash ... #Dermatology #Skin
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... : • Palpable Rash ... • Non-Palpable Rash ... #Petechiae #Rash
SKIN RASHES 



Skin rashes can occur from a variety of factors, including infections, heat, allergens, immune
SKIN RASHES ... Skin rashes ... rapid and accurate diagnosis ... into these classes ... ; #purpura; #rash
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Findings: • Petechiae ... Maculopapular rash ... Differential Diagnosis ... #dermatology #rash
Palpable Purpura seen in Henoch Schonlein Purpura (HSP, IgA Vasculitis)

55 year old male on tuberculosis treatment
(HSP, IgA Vasculitis ... ankles and palpable rash ... #clinical #photo ... #dermatology #skin ... #rash #physicalexam
Pigmented Purpuric Dermatoses (PPD) - Capillaritis

Group of chronic, benign, cutaneous eruptions characterized by the presence of
the presence of petechiae ... characterized by petechiae ... - This iron causes ... brown tint of the rash ... #differential #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... tract, and often causes ... mucositis - Rash ... Differential Diagnosis ... differential #diagnosis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... Differential Diagnosis ... , mucositis • Rash ... tract, and often causes ... #Differential #Diagnosis
Capnocytophaga Canimorsus Skin Rash

40 M presents w/ N, V, severe epigastric pain. SHx: smoker, drinks 18
Rash 40 M presents ... Diffuse blanching rash ... +purpuric rash → ... #Rash #dermatology ... #clinical #photo
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Rash is usually ... chronicum migrans • Rash ... Fever + facial rash ... • Evanescent rash ... Acute systemic rash