42 results
Generalized Hyperpigmentation Differentials
Use the Mnemonic "no skin SPARED"

Images from dermnet.nz and merckmanuals

Mnemonic from https://www.medscape.com/slideshow/dermatology-mnemonics-6011359#5 #diagnosis #differential
Hyperpigmentation Differentials ... the Mnemonic "no skin ... #5 #diagnosis #differential ... #symptoms #signs ... #dermatology #skin
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
thrombophlebitis Skin ... band syndrome • Shin ... Poor pulses - Hair ... Brittle nails - Skin ... skin • Inflammation
Scarlet fever
• Delayed-type skin reactivity to pyrogenic exotoxin Requires prior exposure
• Diffuse erythematous eruption that generally
Scarlet fever • ... Delayed-type skin ... folds #Scarlet #fever ... diagnosis #clinical #photo ... #signs #symptoms
Erythematous Rashes - THE ALGORITHMIC APPROACH

Characterized by diffuse redness of the skin due to
capillary congestion, erythematous
redness of the skin ... the Nikolsky sign ... staphylococcal scalded skin ... , the differential ... #Differential
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
Regions - Frequent Differential ... Medical History: • Skin ... localizing signs ... leptospirosis • Skin ... Rickettsioses, bacterial skin
Differential Diagnosis and Evaluation of Hyponatremia:
1) Identification of onset (acute vs. chronic)
2) Presence of symptoms (HA,
Differential Diagnosis ... onset (acute vs. chronic ... 2) Presence of symptoms ... status (edema, JVD, skin ... Pseudohyponatremia #Differential
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Skin Conditions ... Scleroderma Thickened skin ... arthritis Discoid skin ... #joint #pain #skin ... #rashes #differential
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
trigger - Direct skin ... contact with cold air ... 50% of patients Skin ... - Headache, fever ... 1% of patients Skin
Combination of Skin Findings and Arthritis in Pediatrics Patient - Differential Diagnosis
Malar rash: 
 • A
Combination of Skin ... on texture of skin ... Suggestive of: Rheum Fever ... migrans: • Target sign ... dermatology #arthritis #skin
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... Capitis - Skin ... Examination: • Signs ... Examine the entire skin ... weight loss • Chronic