DERM_DESC_LESIONS_MS2

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Author:
soren101
ID:
117704
Filename:
DERM_DESC_LESIONS_MS2
Updated:
2011-11-21 13:59:32
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DERMATOLOGY DESCRIBING SKIN DISEASES
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DERM_DESCRIBING_LESIONS
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  1. MACULE or PATCH
    PRIMARY LESIONS

    • MACULE
    • --CIRCUMSCRIBED, FLAT DISCOLORATION < 1cm

    • PATCH
    • --FLAT LESION > 1cm

    Dx

    • BROWN
    • --MELASMA
    • --CAFE-AU-LAIT
    • --FRECKLE (ephilid)
    • --JUNCTIONAL NEVUS

    • RED
    • --DRUG ERUPTION
    • --2ndary SYPHILIS
    • --VIRAL EXANTHEMS
    • --ATOPIC DERMATITIS

    • BLUE
    • --BLUE NEVUS
    • --INK
    • --DERMAL MELANOSIS

    • HYPOPIGMENTED
    • --TINEA VERSICOLOR
    • --VITILIGO
    • --PITYRIASIS
  2. HYPOPIGMENTATION vs. DEPIGMENTATION
    HYPO -- LIGHTER THAN nL SKIN BYT SEEMS LIKE 2ndary PROCESS

    DEPIGMENTATION --ABSENCE OF PIGMENT (white)

    • HYPO
    • -------------------------

    • DEPIGMENTATION
  3. PAPULE OR PLAQUE
    PRIMARY LESIONS

    PAPULE "bump" -- ELEVATED SOLID < 1cm. DOME SHAPED, FLAT, UMBILICATED

    PLAQUE -- CIRCUMSCRIBED, ELEVATED, SOLID LESION > 1cm

    PAPULE --> PLAQUE

    • ---------------------

    PAPULE

    • FLESH, YELLOW, WHITE
    • --BASAL CELL
    • --FLAT WARTS
    • --MOLLUSCUM CONTAGIOSUM
    • --INTRADERMAL NEVI
    • --SEBAC HYPERPLASIA
    • --SKIN TAGS

    • RED
    • --INSECT BITES
    • --ACNE
    • --CHERYY ANGIOMA
    • --PSORIASIS
    • --POLYMORPHIC LIGHT ERUPTION
    • --URTICARIA
    • --ROSACEA

    • BROWN
    • --COMPOUND NERVUS
    • --MELANOMA
    • -- SEBORRHEIC KERATOSIS
    • --WARTS
    • --DERMATOFIBROMA

    • BLUE / VIOLACEOUS
    • --ANGIOKERATOMA
    • --LICHEN PLANUS
    • --KAPOSI'S SARCOMA
    • --MELANOMA
    • --BLUE NEVUS

    PLAQUE

    • PAPULOSQUAMOUS LESIONS
    • --PAPULAR AND SCALING

    • PSORIASIS
    • SEBORRHEIC DERMATITIS
    • LICHEN PLANUS
    • LUPUS ERYTHEMATOSUS
    • PITYRIASIS ROSEA
    • TINEA CORPORIS
    • SYPHILIS 2ndary
    • CUTANEOUS T-CELL LYMPHOMA
  4. NODULE AND TUMOR
    PRIMARY LESIONS

    • NODULE
    • --CIRCUMSCRIBED, ELEV, SOLID LESION > 1cm
    • --DEEPER DERMAL COMPONENT COMPARED TO PAPULE

    • TUMOR
    • --LARGE NODULE
    • --MORE EXOPHYTIC
  5. PUSTULE
    PRIMARY LESION

    CIRCUMSCRIBED COLLECTION OF LEUKOCYTES AND SERUM

    OPAQUE WHITISH/YELLOW



    • ACNE
    • CANDIDIASIS
    • FOLLICULITIS
    • IMPETIGO
    • HERPES / VARICELLA
  6. WHEAL
    PRIMARY LESION

    EDEMATOUS RED PINK OR PALE PLAQUE RESULTING FROM EDEMA wi DERMIS

    TRUE WHEALS TRANSIENT AND MAY LAST ONLY FEW HOURS



    • HIVES
    • WHELPS
    • WELTS
  7. VESICLES AND BULLA
    PRIMARY LESIONS

    • VESICLE
    • --CIRCUMSCRIBED COLLECTION OF CLEAR OR TELLOWISH FLUID < 1cm

    • BULLA
    • -- > 1cm
    • --CAN BE HEMORRHAGIC



    • CONTACT DERMATITIS
    • DYSHIDROSIS
    • HERP SIMP & ZOSTER
    • ERYTHEMA MULTI
    • PEMPHIGUS VULGARIS
    • BULLOUS PEMPHIGOID
    • DERMATITIS HERPETIFORMIS
    • EPIDERMOLYSIS BULLOSA
  8. DEFINE 2ndary LESIONS
    DEV DURING EVOLUTIONARY PRICESS OF SKIN Dz OR CREATED BY SCRATCHING / INFECTION

    MAY BE ONLY TYPES OF LESION PRESENT, SO PRIMARY Dz MUST BE INFERRED
  9. SCALE
    2NDARY

    "FLAKES"

    KERATINOCYTES PRODUCED BY ABN KERATINIZATION AND SHEDDING

  10. CRUSTS
    2NDARY

    "SCAB"

    COLLECTION OF DRIED SERUM AND CELLULAR DEBRIS

  11. EROSIONS
    2NDARY

    FOCAL LOSS OF EPIDERMIS

    NOT PENETRATE BELOW DERM-EPIDERMAL JUNCTION AND THEREFORE HEALS wo SCARRING

  12. ULCERS
    2NDARY

    FOCAL LOSS OF EPIDERMIS AND DERMIS OR DEEPER

    HEALS w SCARRING

  13. FISSURE
    2NDARY

    LINEAR LOSS OF EPIDERMIS AND DERMIS w SHARPLY DEFINED NEARLY VERTICAL WALLS

  14. ATROPHY
    2NDARY

    • DEPRESSION IN SKIN RESULTING FROM THINNING OF EPIDERMIS OR DERMIS

  15. EROSION vs. ULCER vs. FISSURE pic
  16. EXCORIATION
    2NDARY

    EROSION CAUSED BY SCRATCHING

    OFTEN LINEAR

    OFTEN SPARE MIDBACK OR IS LIMITED TO AREAS wi REACH OF ONE'S HANDS

  17. LICHENIFICATION
    AREA OF THICKENED EPIDERMIS INDUCED BY SCRATCHING OR RUBBING

    SKIN LINES (dermatogliphics) ACCENTUATED AND SURFACE MAY LOOK LEATHERY

  18. COMEDO
    SPECIAL LESION

    PLUG OF SEBACEOUS AND KERATINOUS MATERIAL LODGED IN OPENING OF HAIR FOLLICLE

    EITHER OPEN (blackhead) OR CLOSED (whiteheads)



  19. PAPULOSQUAMOUS LESIONS
    SPECIAL LESIONS

    BOTH RAISED AND SCALING

    CAN BE PAPULES OR PLAQUES

  20. CYST
    SPECIAL LESION

    CIRCUMSCRIBED PAPULE OR NODULE

    HAS WALL w LUMEN CONTAINING FLUID OR SOLID MATTER

    CAN HAVE PUNCTUM



  21. BURROW
    SPECIAL LESION

    NARROW ELEV TORTUOUS CHANNEL PROD BY PARASITE



  22. PETECHIAE
    SPECIAL LESIONS

    CIRCUMSCRIBED DEPOT OF BLD; RBC EXTRAVASATION

    <.05cm AND NOT PALPABLE

    PURPURA > .5cm



  23. PURPURA
    SPECIAL LESION

    CIRCUMSCRIBED EXTRAVASATION OF BLD > .5cm

    PETECHIAE < .5cm



  24. TELANGIECTASIA
    SPECIAL LESION

    DILATED SUPERFICIAL BLD VESSELS

    CAN BE LINEAR OR SPIDER TYPE

  25. DESCIRBE LESIONS THAT ARE RING-SHAPED OR PORTION OF RING
    ANNULAR

    ARCUATE
  26. DESCRIBE DISTINCTLY SEPARATE LESIONS with BORDER EASILY DISTINGUISHED
    DISCRETE
  27. DESCRIBE LESIONS THAT ARE GROUPED TOGETHER
    CLUSTERED

  28. DESCRIBE LESIONS THAT RUN TOGETHER
    CONFLUENT

  29. DESCRIBE LESSIONS OCCURING IN A DERATOME
    DERMATOMAL

    ZOSTERIFORM
  30. DESCRIBE LESIONS CLUSTERED AROUND FOLLICLES
    FOLLICULAR

  31. DESCRIBE DROP-LIKE PAPULES

    USUALLY SCALY
    GUTTATE

    "GUT TATE"



  32. DESCRIBE LESIONS THAT ARE SNAKE-LIKE
    SERPIGINOUS
  33. DESCRIBE LESIONS RESEMBLING SCARLET FEVER (innumerable small red papules)
    SCARLATINIFORM

    similar to morbilliform

  34. DESCRIBE LESIONS RESEMBLING MEASLES (erythematous macules and papules)
    MORBILLIFORM

    MORE PRECISE THAN "MACULOPAPULAR"

  35. DESCRIBE LESIONS OF SMALL PAPULES AROUND OR AT EDGES OF A LARGER PLAQUE
    SATELLITE LESIONS
  36. DESCRIBE LESIONS OF CONCENTRIC CIRCLES OFTEN OF DIFFERENT COLORS
    TARGET LESIONS
  37. DESCRIBE LESIONS OCCURING IN AREAS OF TRAUMA, SUCH AS SCRATCHING
    KOEBNER PHENOMENON

  38. DESCRIBE LESIONS THAT ARE NET-LIKE
    RETICULAR

    LIKE GIRAFFE

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