Primary Skin Lesions by Aseem

Descript about the various Primary lesions in Dermatology!

1. PRIMARY SKIN LESIONS Dr Aseem Sharma Dermatology Resident

2. MACULE (L: Spot) Flat Non-palpable Alteration in Color No Change in Texture

3. MACULE Hypopigmented VITILIGO TUBEROUS SCLEROSIS Hyperpigmented NEUROFIBROMATOSIS EPHELIDS MONGOLIAN SPOTS Erythematous VIRAL / DRUG RASH Pupurae THROMBOCYTOPENIC PURPURA

4. MACULE

5. MACULE

6. MACULE

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)

10. PAPULE

11. PAPULE

12. PAPULE

13. PAPULE

14. PLAQUE Solid Plateau-like elevation Large S urface Area Coalescence/ Enlargmenent

15. PLAQUE Psoriasis Vulgaris Lichen Simplex Chronicus Borderline Tuberculoid Leprosy

16. PLAQUE

17. PLAQUE

18. PATCH Large Macule OR Plaque ?? Rarely used

19. NODULE (L: small knot) Solid Raised Round 3D growth of Papule Diff from papule in Depth Tumour

20. NODULE Epidermal (Nodular BCC/ Keratoacanthoma ) Dermal ( Dermatofibroma ) Subcutaneous ( Lipoma / Eythema Nodosum )

21. NODULE

22. NODULE

23. NODULE

24. TUMOUR

25. WHEAL ‘ Urticaria / Hives’ Evanescent Elevated Lesion With Erythema and Edema Blanching Dermographism (25%) Angioedema

26. WHEAL Transient Vascular Reaction in Dermis  Vasodilation / Increased Capillary permeability  Extravasation of fluid from Capillaries  Edema

27. WHEAL

28. DERMOGRAPHISM

29. ANGIOEDEMA

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  Stratum Corneum - Impetigo Contagiosum - Pemphigus Foliaceus Stratum Spongiosum - Contact Dermatitis - Pompholyx  Stratum basale - Pemphigus Vulgaris Dermo -Epidermal Junction - Bullos Pemphigid - Dermatitis Herpetiformis

32. VESICLE/ BULLA

33. VESICLE/ BULLA

34. VESICLE/ BULLA

35. VESICLE/ BULLA

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

38. PUSTULE

39. PUSTULE

40. PUSTULE

41. CYST Sac containing liquid/ semisolid material ‘Resilient feel’ TYPES - KERATINOUS Squamous ep Epidermis - PILAR Multilayered ep Hair Follicle

42. CYST

43. CYST

44. ABSCESS Elevated lesion Collection of pus under skin Lack well-defined lining Surrounding skin changes

45. ABSCESS

46. THANK YOU