5899 results
Nonscarring Alopecias: Clinical features of the most common types
Patterned hair loss:
 - Age: puberty or older
or without bare patches ... - Mostly bare patches ... Distribution: patchy ... pets) - Bare patches ... #differential #diagnosis
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
- Differential Diagnosis ... salmon-coloured patches ... a large lesion patch ... #Differential #Diagnosis
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
small oval scaling patches ... - Differential diagnosis
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
be widespread - Patches ... medial malleoli - Patches ... - Tan to brown patches ... pattern); herald patch ... #differential #diagnosis
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
- Differential Diagnosis ... " erythematous patches ... #Differential #Diagnosis
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
spots (triangular patches ... ophthalmology #diagnosis
Pigmented Purpuric Dermatoses (PPD) - Capillaritis

Group of chronic, benign, cutaneous eruptions characterized by the presence of
red, or yellow patchy ... circumscribed patches ... #differential #diagnosis
Cutaneous signs of Addison's disease may be a useful clue. Hyperpigmentation especially involves sun-exposed areas and
Patients often have patchy ... Diagnosis is more ... Clinical #Cutaneous #Diagnosis
Breast Discharge - Differential Diagnosis Algorithm
High Prolactin + Normal TSH
 • Microprolactinoma
 • Steroid Hormone Intake
- Differential Diagnosis ... Contraceptive Pill/Patch ... #Differential #Diagnosis
Lyme Disease: Clinical diagnosis. Likely if recent hiking, travel to endemic area, erythema migrans (EM), an
Disease: Clinical diagnosis ... an erythematous patch ... #Diagnosis #LymeDisease