13 results
Actinic Keratosis

Charlie Goldberg, M.D. - UCSD Catalog of Clinical Images

#Clinical #Dermatology #SkinRash #ActinicKeratosis #AK #Photo #UCSDH
Actinic Keratosis ... ActinicKeratosis #AK
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
: • Scarring Alopecia ... erythematosus, Keratosis ... , Traction alopecia ... totalis, Alopecia ... Examination: • Signs
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Hair Loss (Alopecia ... • Androgenetic alopecia ... facial hair) • Alopecia ... Brocq • Alopecia ... Mucinosa • Keratosis
Colchicine Toxicity 
Naturally-occurring plant alkaloid [Autumn Crocus and Glory Lilly]
2-24 hrs 
 • Severe GI distress
• Transient alopecia ... Toxicology #Symptoms #Signs
Clinically Important Vitamins and Vitamin Deficiency States
Fat-soluble Vitamins: 
 • Vitamin A - Xerophthalmia, night blindness,
- Dermatitis, alopecia ... differential #diagnosis #signs
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
areas -> Scaring alopecia ... mechanism) -> Alopecia ... pathophysiology #diagnosis #signs
Focal / Localized Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 - Infectious
Localized Hair Loss (Alopecia ... Brocq • Alopecia ... Mucinosa • Keratosis ... • Traction alopecia ... Absent • Alopecia
Physiologic Skin Changes in Pregnancy - Differential Diagnosis Algorithm

Face
 • Melasma
Abdomen
 • Linea Nigra 
Hormone induced
• Chadwick's sign ... • Subungual Keratosis
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
hair follicles -> Alopecia ... pathophysiology #signs
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
associated with signs ... and plaques • Keratosis ... macules • Actinic keratosis ... • Seborrheic keratosis