Skin Biopsy

<Procedures>

<Index>

 

Rationale

-  Small piece of living skin sampled for histological examination

 

Indications

-  Assessment of pigmented or suspicious skin lesions

-  DDx of suspected skin cancer

-  BCC, SCC, melanomas, keratoses, psoriasis, insect bites, contact dermatitis

-  Ulcers

-  Unusual wounds

 

Features

-  Sample must be kept moist ie: formaldehyde

 

Types

-  Punch biopsy

-  Shave biopsy

-  Excisional biopsy

 

Procedure 

-  Chlorhexidine

-  LA + 5ml syringe + 23/25G needle

-  Lidocaine +/- Adrenaline

-  Drapes or blueys

-  Suture pack: scissors, forceps

-  +/- Punch biopsy 2mm OR 3mm

-  +/- Scalpel

-  Formaldehyde sample pots

-  +/- Sutures

-  Gauze

-  Dressings: Primapore, Steristrips, +/- Jelonet

 

Procedure 

-  Chlorhexadine preparation of site

-  Drape/blueys

-  LA into site

-  Confirm analgesia/anaesthesia

-  Punch Bx

-  Choose size: 2 or 3mm typical

-  Insert punch Bx perpendicular to skin surface

-  Rotate punch several times

-  Insert to desired depth

-  Remove punch

-  Skin sample will remain in situ

-  Grasp core & retract with forceps

-  Cut base as deep as possible w scissors

-  Shave Bx

-  +/- suture

-  Biopsy sample into sample pot

-  Sent to pathology for histopatholgy

-   +/- AFB (TB)

-   +/- Immunoflouresence

-   +/- Staining

-  Dressing

-  +/- Primapore, Steristrips

-  +/- Jelonet

-  F/U on histology to determine further Mx

 

 

Punch Biopsy

 

Shave Biopsy

Shave Biopsy

 

Shave Biopsy