QUESTION OF THE WEEK

TRICHOSCOPY PAGE 

Trichoscopy or "Scalp Dermoscopy" is an invaluable tool for diagnosing hair loss. Below, we review some of the key features of a variety of hair loss conditions.

 

1) ALOPECIA AREATA

Classic Trichoscopic Features of AA

Elbow Hairs in AA

Where to exclamation mark hairs occur?

Exclamation Mark Hairs in AA

Regrowth in AA: Vellus hairs

Signs of Disease Activity in AA

Early Stages of AA

Dermoscopy of Alopecia areata

Key Trichoscopic Features of AA

Exclamation mark hairs in AA - Part 1

Exclamation Mark Hairs in AA - Part 2

Exclamation mark hairs, vellus hairs and miniaturized hairs in AA

Tapered vs exclamation mark hairs in AA

Trichoscopy of partially treated AA

Miniaturization in AA

Alopecia areata incognito

Tapered Hairs in AA

Assessing Activity in AA using Trichoscopy

AA vs Pseudopelade using Trichoscopy

Yellow dots and short vellus hairs in AA

Exclamation mark hairs are broken hairs

Tapered hairs in AA

Where do we find Exclamation mark hairs in AA?

Black dots in AA

Exclamation mark hairs on the shaved scalp

Vellus hairs in AA

Broken hairs in AA

Activity of AA

Pohl-Pinkus Constrictions in AA

Vellus Hairs in AA

 

2) ANDROGENETIC ALOPECIA

Videodermoscopy of AGA

Dermoscopy of  AGA

Focal Atrichia in AGA

Anisotrichosis in AGA- Part 1

Anisotrichosis in AGA - Part 2

Anisotrichosis in AGA - Part 3

Female Pattern Hair Loss: review of key features

Use of Trichoscopy to Capture the Earliest Changes in AGA

Miniaturization and Anisotrichosis in AGA

Yellow Dots in AGA

Isolated single hairs in AGA

Terminal, Vellus and Miniaturized Hairs in AGA - Example 1

Terminal, Vellus and Miniaturized Hairs in AGA - Example 2

Brown Peripilar sign in AGA - PART 1

Brown Peripilar Sign in AGA - PART 2

Miniaturization as a Clue to AGA

 

3) CENTRAL CENTRIFUGAL CICATICIAL ALOPECIA

Trichoscopy of CCCA: The Peripilar White-Grey Halo

 

4) DISCOID LUPUS

Follicular Red Dots in DLE

DLE of the Scalp

Trichoscopy of Late DLE 

Trichosocopy of Early DLE

 

5) DISSECTING CELLULITIS

Sinus tract in DSC

Yellow dots in DSC

Healed sinus tracts, example 1 

Headed sinus tract, example 2

DSC - A closer look

Early features of DSC

 

6) FOLLICULITIS DECALVANS

4 Trichoscopic Clues to the Diagnosis of FD

Understanding Compound Follicles: A Clue for FD

Folliculitis Decalvans: Trichscopy in Darker Skin Types

FD: How many hairs emerge from pores normally?

The Compounding of Hair Follicles

Compound Follicles

 

7) FRONTAL FIBROSING ALOPECIA

Perifollicular Erythema in FFA

FFA: Often Fewer Features than Classic LPP

Absence of vellus hairs in FFA

Scaling Patterns in FFA

Perifollicular redness in FFA: What is the significance?

Perifollicular Scaling in FFA

Do I have FFA? Vellus Hairs in The Frontal Hairline May Mean No

 

8) HAIR CAST

Hair Casts in LPP - Part 1

Hair Casts in LPP - Part 2

Hair casts in Psoriasis

Hair casts in traction alopecia

9) HAIR DYE

Trichoscopy of Hair Dyes, Example 1

Trichoscopy of Hair Dyes, Example 2

Trichoscopy of Hair Dyes, Example 3

 

10) LICHEN PLANOPILARIS

Classic Trichoscopy of LPP

“Milky Red Areas” in LPP

Videodermoscopy of LPP - Part 2

Videodermoscopy of LPP - Part 1

Perifollicular Scaling in LPP

Single Hairs in LPP: Reflection of a Destructive Process

LPP of Facial Hair

Sea of singles (SOS) in LPP

Perifollicular Scale in LPP - Part 1

Perifollicular Scale in LPP - Part 2: What does it tell us about disease activity?

Partially-treated LPP

Follicular hyperkeratosis (perifollicular scale) in LPP

Perifollicular scale is not specific for LPP

Scaling in LPP

Early and late stage LPP

Perifollicular scale as a clue to LPP

Normal vs Compound Follicles in Scarring Alopecia

Perifollicular erythema (redness)

Acquired Pili Torti

Hair Casts in LPP

Perifollicular Scaling in LPP: Can they be seen without a dermatoscope?

Signs of Follicular Injury in Scarring Alopecia

Compound Follicles in Lichen Planopilaris: Challenging Case

11) PITYRIASIS AMIANTACEA

Pityriasis Amiantacea: A Reaction Pattern Not A Diagnosis

12) PSEUDOPELADE OF BROCQ

AA vs Pseudopelade using Trichoscopy

AA vs Pseudopelade, Example 2

Pseudopelade of Brocq

Pseudopelade of Brocq

 

13) PSORIASIS

Scalp Psoriasis: Many variations

Hair casts in Psoriasis

Scalp Psoriasis: One of the Many Cases of a Red Scalp

14) SEBORRHEIC DERMATITIS

Seborrheic Dermatitis and Hair Casts

15) STEROID ATROPHY

Trichoscopy of Steroid Atrophy

 

16) TELOGEN EFFLUVIUM

Trichoscopy of TE - Yellow Dots  

Upright regrowing hairs in TE - Example 1

Upright regrowing hairs in TE - Example 2

Upright regrowing hairs in TE - Example 3

Upright regrowing hairs in TE - Example 4

Upright regrowing hairs in TE - Example 5

Identifying Telogen Hairs

Trichoscopy of CTE

Differentiating between 1 cm hairs on trichoscopy

Videodermoscopy of CTE

 

 

17) TRACTION ALOPECIA

Traction alopecia from extensions

Miniaturized hairs in traction alopecia

Hair casts in traction alopecia

 

18) TRICHOSOCPY OF SCALP ANATOMY

Eccrine Glands

 

19) TRICHOTILLOMANIA

Differentiating TTM from AA

Exclamation mark hairs in TTM

On the lookout for TTM in Children

Tulip Hairs in TTM

20) General Articles on Trichoscopy (Scalp Dermoscopy)

On the Practice of Trichoscopy

The Limitations of Trichoscopy

 

 




 

 

 

 




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