primary skin lesions by aseem
DESCRIPTION
Descript about the various Primary lesions in Dermatology!TRANSCRIPT
PRIMARY SKIN LESIONS
Dr Aseem SharmaDermatology Resident
MACULE (L: Spot)
Flat
Non-palpable
Alteration in Color
No Change in Texture
MACULE
Hypopigmented VITILIGO TUBEROUS
SCLEROSIS Hyperpigmented NEUROFIBROMATOSIS
EPHELIDS MONGOLIAN SPOTS Erythematous VIRAL / DRUG RASH Pupurae THROMBOCYTOPENIC
PURPURA
MACULE
MACULE
MACULE
PAPULE (L. pimple)
• Small
• Solid
• Elevated lesions
• < 01 cm dia
PAPULE
• Epidermal hyperplasia/ Extraenous infiltrates
• SHAPE ACUMINATE (Follicular LP) DOME-SHAPED (M. contagiosum) FLAT TOPPED (Lichen Planus) PAPULO-SQUAMOUS (Guttate Psoriasis)
PAPULE
• COLOUR
WHITE (M. contagiosum) VIOLACEOUS (L. Planus) YELLOWISH (Xanthomatosis) FLESH COLOURED (A. sebaceum) BLUISH-BLACK (Malignant Melanoma)
PAPULE
PAPULE
PAPULE
PAPULE
PLAQUE
• Solid• Plateau-like elevation• Large Surface Area• Coalescence/ Enlargmenent
PLAQUE
• Psoriasis Vulgaris
• Lichen Simplex Chronicus
• Borderline Tuberculoid Leprosy
PLAQUE
PLAQUE
PATCH
• Large Macule OR Plaque ??
• Rarely used
NODULE (L: small knot)
• Solid• Raised• Round• 3D growth of Papule• Diff from papule in Depth
• Tumour
NODULE
• Epidermal (Nodular BCC/ Keratoacanthoma)
• Dermal (Dermatofibroma)
• Subcutaneous (Lipoma/ Eythema Nodosum)
NODULE
NODULE
NODULE
TUMOUR
WHEAL• ‘Urticaria / Hives’• Evanescent• Elevated Lesion• With Erythema and Edema• Blanching
• Dermographism (25%)• Angioedema
WHEAL
Transient Vascular Reaction in Dermis
Vasodilation / Increased Capillary permeability
Extravasation of fluid from Capillaries
Edema
WHEAL
DERMOGRAPHISM
ANGIOEDEMA
VESICLE (L: bladder)/ BULLA (L: bubble)
• Elevated lesion
• Contains Clear Fluid
• < 0.5 cm dia = VESICLE
• > 0.5 cm dia = BULLA
VESICLE/ BULLA• Levels
Stratum Corneum - Impetigo Contagiosum - Pemphigus Foliaceus
Stratum Spongiosum - Contact Dermatitis - Pompholyx Stratum basale - Pemphigus Vulgaris
Dermo-Epidermal Junction - Bullos Pemphigid - Dermatitis Herpetiformis
VESICLE/ BULLA
VESICLE/ BULLA
VESICLE/ BULLA
VESICLE/ BULLA
PUSTULE• Raised lesion
• Elevated
• Fluid-filled lesions
• WBCs + Debris +/- Bacteria
PUSTULE
• Pyoderma• Halogenoderma• 2° to Vesicular lesions (Herpes Zoster/
Varicella)• Acne Vulgaris
• Pustular Psoriasis
PUSTULE
PUSTULE
PUSTULE
CYST
• Sac containing liquid/ semisolid material• ‘Resilient feel’
TYPES
- KERATINOUS Squamous ep Epidermis - PILAR Multilayered ep Hair Follicle
CYST
CYST
ABSCESS
• Elevated lesion• Collection of pus under skin• Lack well-defined lining• Surrounding skin changes
ABSCESS
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