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Primary Skin Lesions by Aseem
This document describes various primary skin lesions seen in dermatology. It defines macules as flat, non-palpable lesions that alter skin color but not texture. Papules are described as small, solid, elevated lesions under 1 cm in diameter. Plaques are solid, plateau-like elevations with a large surface area formed by coalescence of macules or papules. Nodules are solid, raised, round growths deeper than papules. Vesicles and bullae contain clear fluid and are distinguished by a size of less than or greater than 0.5 cm, respectively. Pustules are fluid-filled lesions containing white blood cells and debris. Cysts are sacs containing liquid or se
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Primary Skin Lesions by Aseem
- 1. PRIMARY SKIN LESIONS DrAseem Sharma Dermatology Resident
- 2. MACULE (L: Spot) Flat Non-palpable Alterationin Color No Change in Texture
- 3. MACULE Hypopigmented VITILIGO TUBEROUS SCLEROSIS HyperpigmentedNEUROFIBROMATOSIS EPHELIDS MONGOLIAN SPOTS Erythematous VIRAL / DRUG RASH Pupurae THROMBOCYTOPENIC PURPURA
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- 7. PAPULE (L. pimple) •Small • Solid • Elevated lesions • < 01 cm dia
- 8. PAPULE • Epidermal hyperplasia/Extraenous infiltrates • SHAPE ACUMINATE (Follicular LP) DOME-SHAPED (M. contagiosum) FLAT TOPPED (Lichen Planus) PAPULO-SQUAMOUS (Guttate Psoriasis)
- 9. PAPULE • COLOUR WHITE (M.contagiosum) VIOLACEOUS (L. Planus) YELLOWISH (Xanthomatosis) FLESH COLOURED (A. sebaceum) BLUISH-BLACK (Malignant Melanoma)
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- 14. PLAQUE • Solid • Plateau-likeelevation • Large Surface Area • Coalescence/ Enlargmenent
- 15. PLAQUE • Psoriasis Vulgaris •Lichen Simplex Chronicus • Borderline Tuberculoid Leprosy
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- 18. PATCH • Large MaculeOR Plaque ?? • Rarely used
- 19. NODULE (L: smallknot) • Solid • Raised • Round • 3D growth of Papule • Diff from papule in Depth • Tumour
- 20. NODULE • Epidermal (NodularBCC/ Keratoacanthoma) • Dermal (Dermatofibroma) • Subcutaneous (Lipoma/ Eythema Nodosum)
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- 25. WHEAL • ‘Urticaria /Hives’ • Evanescent • Elevated Lesion • With Erythema and Edema • Blanching • Dermographism (25%) • Angioedema
- 26. WHEAL Transient Vascular Reactionin Dermis Vasodilation / Increased Capillary permeability Extravasation of fluid from Capillaries Edema
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- 30. VESICLE (L: bladder)/BULLA (L: bubble) • Elevated lesion • Contains Clear Fluid • < 0.5 cm dia = VESICLE • > 0.5 cm dia = BULLA
- 31. VESICLE/ BULLA • Levels StratumCorneum - Impetigo Contagiosum - Pemphigus Foliaceus Stratum Spongiosum - Contact Dermatitis - Pompholyx Stratum basale - Pemphigus Vulgaris Dermo-Epidermal Junction - Bullos Pemphigid - Dermatitis Herpetiformis
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- 36. PUSTULE • Raised lesion •Elevated • Fluid-filled lesions • WBCs + Debris +/- Bacteria
- 37. PUSTULE • Pyoderma • Halogenoderma •2° to Vesicular lesions (Herpes Zoster/ Varicella) • Acne Vulgaris • Pustular Psoriasis
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- 41. CYST • Sac containingliquid/ semisolid material • ‘Resilient feel’ TYPES - KERATINOUS Squamous ep Epidermis - PILAR Multilayered ep Hair Follicle
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- 44. ABSCESS • Elevated lesion •Collection of pus under skin • Lack well-defined lining • Surrounding skin changes
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