570 results
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
true positives / disease ... / disease absent ... / all negatives ... Specificity = SPIN ... #calculations #diagnosis
Purpuric Skin Lesions - Petechia/Purpura and Ecchymosis 

#Purpuric #Purpura #Petechia #Ecchymosis #Comparison #Dermatology #Skin #Diagnosis #Clinical
Purpuric Skin Lesions ... Petechia #Ecchymosis #Comparison ... #Dermatology #Skin ... #Diagnosis #Clinical
Skin Cancer Overview - Basal Cell, Squamous Cell and Melanoma

#Skin #Cancer #Basal #Squamous #Melanoma #Dermatology #Diagnosis
Skin Cancer Overview ... and Melanoma #Skin ... Squamous #Melanoma #Dermatology ... #Diagnosis #Overview ... #Comparison
Staphylococcal Scalded Skin Syndrome (SSSS) 
(aka Ritter disease)

#Staphylococcal #Scalded #Skin #Syndrome #SSSS #Diagnosis #Pediatrics #Dermatology #Ritter
Staphylococcal Scalded Skin ... (aka Ritter disease ... Syndrome #SSSS #Diagnosis ... #Pediatrics #Dermatology ... #Ritter #Disease
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
infection • Lyme disease ... migrans • Lyme disease ... Sarcoidosis • Crohn's disease ... #differential #diagnosis ... #rheumatology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
trigger - Direct skin ... Disorientation, vertigo Diagnostic ... Cold #Urticaria #diagnosis ... #rheumatology # ... comparison #table
Diagnostic Schema for Hyperferritinemia

Pearl: Diseases associated with extreme elevations: 
1. HLH 
2. Still's disease 
3. Systemic
Diagnostic Schema ... Hyperferritinemia Pearl: Diseases ... Still's disease ... #Differential #Diagnosis ... #Hematology
Vascular Lesions: Spider Angioma, Spider Vein, Cherry Angioma 

#Vascular #Spider #Angioma #Vein #Cherry #Comparison #Dermatology #Skin
#Vein #Cherry #Comparison ... #Dermatology #Skin ... #Diagnosis #Clinical
Autoimmune Hemolytic Anemia (AIHA) - Differential Diagnosis Table

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
- Differential Diagnosis ... Cold Agglutinin Disease ... AIHA (7-8%) DAT-negative ... #Differential #Diagnosis ... #Table #hematology
Distribution of some common dermatologic diseases and lesions

#skin #lesions #locations #distribution #differential #diagnosis #dermatology
common dermatologic diseases ... and lesions #skin ... #differential #diagnosis ... #dermatology