Disclosures Todays program sponsored by 3Gen, manufacturer of - - PowerPoint PPT Presentation

▶
disclosures
SMART_READER_LITE
LIVE PREVIEW

Disclosures Todays program sponsored by 3Gen, manufacturer of - - PowerPoint PPT Presentation

Jan 31, 2024 256 likes •700 views

Abbvie speakers bureau 3Gen Disclosures Todays program sponsored by 3Gen, manufacturer of dermatoscopes Disclosures Todays program will focus on the science and technique of dermoscopy rather than the sale of specific

slide-1
SLIDE 1

Disclosures

 Abbvie speakers bureau  3Gen

slide-2
SLIDE 2

Disclosures

 Today’s program sponsored by 3Gen,

manufacturer of dermatoscopes

slide-3
SLIDE 3

Mitigation of Bias

 Today’s program will focus on the science and

technique of dermoscopy rather than the sale of specific devices manufactured by 3Gen

slide-4
SLIDE 4

Dermoscopy: A closer look

Jenni Holman MD

slide-5
SLIDE 5

Dermatology Associates of Tyler

  • BS Zoology, University of Oklahoma
  • M.D., University of Oklahoma
  • Dermatology Residency, University of Missouri
  • Currently in Tyler, TX in dermatology group

practice

  • Medical, surgical, and cosmetic dermatology
  • Married to ER physician and mother of 3
slide-6
SLIDE 6
  • Define dermoscopy
  • Explain the applications of dermoscopy
  • Recognize dermoscopy basics
  • Identify dermatoscopic characteristics of

melanoma

  • Identify dermatoscopic characteristics of

common non-pigmented lesions

Dermoscopy: A Closer Look

slide-7
SLIDE 7

DERMNETNZ.ORG

slide-8
SLIDE 8
  • Dermoscopy: The examination of skin

lesions with a dermatoscope

  • Primarily used as a aid to differentiate

benign and malignant lesions

Dermoscopy defined

slide-9
SLIDE 9

Oil Immersion Dermatoscope

slide-10
SLIDE 10

Dermlite

slide-11
SLIDE 11

Dermoscopy Photography

slide-12
SLIDE 12

Smartphone Dermatoscopes

slide-13
SLIDE 13
  • Intoroduced in 1663 by Kolhaus
  • Improved by addition of oil immersion in 1878

by Ernest Abbe

  • Johann Saphier added a built-in light source
  • Goldman coined the term “dermascopy”

History of Dermoscopy

slide-14
SLIDE 14
  • Aid in melanoma diagnosis
  • Monitor pigmented lesions
  • Diagnosis of scabies or pubic lice
  • Wart diagnosis
  • Fungal diagnosis
  • Differentiate and diagnose tinea vs alopecia

areata

  • Trichoscopy
  • Surgical margin determination

Dermoscopy Applications

slide-15
SLIDE 15
  • Increase diagnostic accuracy for melanoma
  • Increased sensitivity by 20%
  • Increased specificity by 10%

Dermoscopy Applications

slide-16
SLIDE 16

Dermoscopy Basics

slide-17
SLIDE 17

Is it melanocytic or not?

FIRST STEP

slide-18
SLIDE 18
  • Melanocytic lesions are

composed of 3 basic structures

  • Pigment Network
  • Dots and Globules
  • Streaks
  • Amorphous Areas
  • Blue Areas

FIRST STEP

slide-19
SLIDE 19
  • A delicate regular grid of brownish

lines over a light brown background

  • Correlates to rete ridges (pigment)

and dermal papillae

  • A pigment network is the hallmark
  • f a melanocytic lesion

Pigment network

slide-20
SLIDE 20

Pigment Network

  • A Pigment Network
  • Reticular Pattern
  • Lattice like

structure

  • Localized or

Diffuse

slide-21
SLIDE 21

Dots and Globules?

slide-22
SLIDE 22

Amorphous Areas

slide-23
SLIDE 23

Is it melanocytic?

slide-24
SLIDE 24

Melanocytic: Benign or Not?

slide-25
SLIDE 25

Color

slide-26
SLIDE 26

Symmetry  Shape  Pattern

slide-27
SLIDE 27

Dermoscopy of Melanoma

slide-28
SLIDE 28
  • Mulitple Methods
  • 3 point Rule
  • Menzies Method
  • 7 point Rule
  • Pattern Analysis
  • ABCD
  • Kittler Method

Melanoma Diagnosis

slide-29
SLIDE 29
  • Asymmetry of Color
  • Asymmetry of Pattern
  • Blue or White Structures

3 Point Method

slide-30
SLIDE 30
  • Major Criteria
  • Irregular Pigment Network
  • Blue White Veil
  • Irregular vascularity
  • Minor Criteria
  • Irregular dots and globules
  • Irregular streaks
  • Irregular blotches
  • Regression Structures

7 Point Method

slide-31
SLIDE 31

Non-Melanocytic Lesions

slide-32
SLIDE 32
  • Pigmented non-Melanocytic

Lesions

  • Seborrheic Keratoses
  • Pigmented Basal Cell Carcinoma
  • Dermatofibromas
slide-33
SLIDE 33

Seborrheic Keratosis

  • No true network/globules
  • Milia-like cysts
  • “Fat Fingers”/ Cerebriform Surface
  • Fissures/Ridges
  • Blue-Gray dots
slide-34
SLIDE 34

Milia Like Cysts?

slide-35
SLIDE 35

Cerebriform Surface?

slide-36
SLIDE 36
  • Absence of pigment network
  • Linear and arborizing telangiectasia
  • Leaf like areas on periphery
  • Blue-grey ovoid nests or globules
  • Spoke wheel areas

Basal Cell Carcinoma

slide-37
SLIDE 37

Arborizing Telangiectasia?

slide-38
SLIDE 38

Basal Cell Carcinoma leaf like areas

slide-39
SLIDE 39

Basal Cell Carcinoma Blue–grey areas

slide-40
SLIDE 40
  • Widspread blue/red lacunae
  • Homogenous red-blue-black

areas

Vascular Lesions

slide-41
SLIDE 41

Vascular Lesions Lacunae

slide-42
SLIDE 42

Hemorrhage