Below are board-oriented, extensive Procedural Dermatology crash notes, followed by a ready-to-use 10-minute AI video creation prompt (NotebookLM / Pictory / Synthesia / HeyGen compatible).
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Procedural Dermatology – EXAM Extensive Crash Notes
1. Basic Principles of Procedural Dermatology
Indications: Diagnosis (biopsy), treatment (excision, cryotherapy), cosmesis, palliation
Contraindications
Absolute: uncontrolled bleeding disorder, active infection at site
Relative: anticoagulation, poor wound healing (diabetes, steroids), keloid tendency
Aseptic technique
Skin prep: chlorhexidine or povidone-iodine
Sterile instruments and gloves for invasive procedures
Informed consent: bleeding, infection, scarring, recurrence
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2. Local Anesthesia in Dermatology
Agents
Lidocaine 1%–2% (most common)
With epinephrine (1:100,000) → ↓ bleeding, ↑ duration
❌ Avoid in end-artery areas (traditional teaching: fingers, nose, penis, toes – exams still test this)
Maximum doses
Lidocaine alone: 4.5 mg/kg
Lidocaine + epinephrine: 7 mg/kg
Techniques
Field block
Ring block (digits)
Tumescent anesthesia (large areas)
⚠️ Complications: LAST (tinnitus, metallic taste, seizures), vasovagal syncope
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3. Skin Biopsy Techniques
A. Shave Biopsy
Indications
Seborrheic keratosis
Warts
Skin tags
Superficial BCC
❌ Avoid for suspected melanoma
Hemostasis: aluminum chloride, electrocautery
B. Punch Biopsy (2–8 mm)
Indications
Inflammatory dermatoses
Vasculitis
Bullous diseases
Small tumors
Close with suture if ≥4 mm
C. Excisional Biopsy
Gold standard for suspected melanoma
1–3 mm margins for diagnosis
Elliptical incision along skin tension lines
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4. Cryotherapy
Agent
Liquid nitrogen (−196°C)
Indications
Actinic keratosis
Viral warts
Seborrheic keratosis
Molluscum contagiosum
Technique
Freeze–thaw cycle (usually 2 cycles)
Target: ice ball extending 1–2 mm beyond lesion
Complications
Hypopigmentation (common in dark skin)
Blistering
Scarring
Nerve injury (if over superficial nerves)
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5. Electrosurgery
Types
Electrodessication
Electrocautery
Electrocoagulation
Indications
Warts
Small benign lesions
Hemostasis
⚠️ Contraindications
Pacemakers (relative)
Flammable prep solutions
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6. Curettage and Electrodessication (C&E)
Indications
Superficial BCC
SCC in situ (Bowen disease)
❌ Not for aggressive BCC or facial high-risk zones
Multiple scrape-burn cycles
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7. Surgical Excision
Margins (EXAM FAVORITE)
BCC (low risk): 3–4 mm
SCC (low risk): 4–6 mm
Melanoma
In situ: 0.5–1 cm
≤1 mm Breslow: 1 cm
1–2 mm: 1–2 cm
> 2 mm: 2 cm
Closure techniques
Primary closure
Flaps (advancement, rotation, transposition)
Skin grafts (split vs full thickness)
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8. Mohs Micrographic Surgery
Indications
Facial BCC/SCC
Recurrent tumors
Ill-defined margins
High-risk histology
Advantages
Tissue-sparing
Highest cure rate (>99% for primary BCC)
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9. Laser Dermatology
Laser Types
CO₂ → ablative resurfacing, warts
Nd:YAG → vascular lesions, hair removal
Pulsed dye laser → port-wine stain
Complications
Burns
Dyspigmentation
Scarring
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10. Nail Procedures
Nail avulsion (partial or total)
Indications: ingrown nail, subungual hematoma, tumors
Digital block anesthesia
Phenolization for recurrent ingrown nails
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11. Cosmetic Procedures (Exam Basics)
Botulinum toxin
Blocks acetylcholine release
Indications: wrinkles, hyperhidrosis
Dermal fillers
Hyaluronic acid most common
Complications: vascular occlusion, blindness (glabella region!)
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12. Wound Care & Sutures
Suture Types
Absorbable: Vicryl, Monocryl
Non-absorbable: Nylon, Prolene
Suture Removal Timing
Face: 5–7 days
Scalp: 7–10 days
Trunk: 10–14 days
Extremities: 14 days
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13. Complications of Dermatologic Procedures
Bleeding
Infection
Hypertrophic scar / keloid
Dehiscence
Recurrence
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14. High-Yield EXAM PEARLS
Melanoma → excisional biopsy
Cryotherapy → hypopigmentation
Mohs → face + recurrent tumors
Epinephrine dose limits
Correct excision margins are frequently tested
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AI VIDEO CREATION PROMPT (10 MINUTES)
Use this prompt directly in NotebookLM / Pictory / Synthesia / HeyGen
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Title:
Procedural Dermatology – High-Yield Exam Crash Course (10 Minutes)
Audience:
Dermatology residents, GP board exams, Prometric / Arab Board / MRCP Part 1 candidates
Style:
Clear, authoritative medical educator
Minimal animations, labeled diagrams, clinical photos
Fast-paced but structured
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VIDEO SCRIPT PROMPT
> Create a 10-minute educational medical video on Procedural Dermatology – Exam Crash Notes.
Structure the video into clear chapters with on-screen headings and bullet points.
Include the following sections in order:
1. Introduction to Procedural Dermatology (exam relevance)
2. Local anesthesia (agents, max doses, complications)
3. Skin biopsy techniques (shave, punch, excisional – indications & pitfalls)
4. Cryotherapy (mechanism, indications, complications)
5. Electrosurgery & Curettage
6. Surgical excision & melanoma margins (high-yield table)
7. Mohs micrographic surgery (indications & advantages)
8. Lasers & nail procedures (quick overview)
9. Common complications & wound care
10. Final exam pearls & rapid recap
Visuals to include:
Diagrams of biopsy techniques
Table of melanoma excision margins
Icons for complications (bleeding, infection, scarring)
Before/after schematic illustrations (no graphic content)
Tone: Confident, concise, exam-oriented
Language: English (medical terminology)
End with:
“If you master these procedures, you secure easy marks in dermatology exams.”
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If you want, next I can:
Convert this into a PDF crash sheet
Add MCQs linked to each procedure
Create Canva slide-ready outlines
Adapt it specifically for DHA / Arab Board / MRCP / Prometric exams