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Rovner

BENIGN TUMORS

  1. EPIDERMAL
    1. Keratosis
      1. Actinic--sun induced, premalignant ill-defined pink keratotic plaques in sun exposed distribution.
      2. Seborrheic--flesh colored to brown waxy verrucous plaques. Well defined lesions, global distribution. No malignant potential. Sign of Leser-Trelat.
    2. Keratoacanthoma--sun induced. "Self-healing" squamous cell carcinoma. Extremely rapidly growing indurated keratotic pink nodule with central crater and keratin core.
    3. Skin Tag--acrochordon, fibroepithelial polyp. Flexural folds. ?Associated with GI polyps.
    4. Clavus--"corn". Thick localized callus with keratin plug.
    5. Verrucae--warts. Human papilloma virus, 60 known subtypes.
      1. Flat
      2. Plantar
      3. Vulgaris
      4. Filiform
      5. Venereal--condyloma acuminata
    6. Cutaneous Horn--indurated pink papule with keratin horn. Wart, actinic keratosis, r/o squamous cell carcinoma
    7. Nevus Sebaceus of Jadassohn
  2. DERMAL
    1. Dermatofibroma--firm, pink-brown plaque or nodule. + "dimple" sign. Lower leg distribution, female greater than male.
    2. Hemangioma
      1. Capillary
      2. Cavernous
      3. Cherry angioma
    3. Pyogenic Granuloma--rapidly growing hemangioma with "collarette", Friable, purulent surface.
    4. Lipoma--moveable firm rubbery subcutaneous nodule(s) with distinct capsule. Isolated or numerous. Often familial.
    5. Epidermal Inclusion Cyst--"sebaceous" cyst, "wen".
  3. PIGMENTED
    1. Nevus
      1. Dermal
      2. Junctional
      3. Compound
      4. Congenital
      5. Blue
      6. Dysplastic--over 5 mm. Macular. Irregular notched borders. Variegated pigment from pink to brown, eccentrically.
      7. Halo
    2. Lentigo--tan maculae, "liver" spots.
      1. simplex
      2. actinic
    3. Ephelid--freckle