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Derm. Benign Lesions
Dermatology Benign Skin Lesions
| Question | Answer |
|---|---|
| This is a benign skin lesion that in appearance can look just like melanoma | Seborrheic Keratosis. Hereditary and usually occur after 30's. Tx not necessary unless symptomatic |
| Skin tags are aka | Acrochordon. Usually appear after 30's. Asymptomatic lesions require no treatment |
| Where do Achrochordon's occur? | Occur in the axilla, neck, groin, eyelids, antecubital and popliteal fossae, inframammary folds especially in large-breasted women, beltline, and other areas where friction occurs. More common in obese and in women |
| Very common, benign, firm dermal papule | Dermatofibroma |
| _____ is associated with a "dimple sign" or "button sign" | Dermatofibroma. A tiny button of scar tissue. Lesions arise spontaneously or secondary to insect bites or trauma when shaving legs. |
| Fatty tumors aka | lipoma. Subcutaneous. Lesions are mobile and feel rubbery. Familial types, more common in areas of trauma. |
| These lesions are filled with keratin and when ruptured or manually expressed, it has a cheesy consistency and a nasty odor. | Epidermal Cyst |
| Epidermal Cysts are most commonly found in | Hair bearing areas, but may occur anywhere. Treatment is not indicated unless symptomatic or located on the face. Tx is ID or excision. Sometimes has a visible opening. |
| Very common, benign, lesions composed of organized clusters of melanocyte-derived nevus cells. | Nevi |
| Most ________nevi are on the palms, soles, genitals, and mucosa are of this type, but they may occur anywhere. | Junctional |
| Nevi that are darker and more elevated than Junction nevi, also found more commonly on the face, scalp and trunk are | Compound Nevi |
| This Nevi looks like a gross cluster of pink little bubbles | Intradermal Nevus. mainly appear during or after adolescence |
| Benign, blue, gray, or black macules or papules. | Blue Nevi. Located deeper within the dermis |
| Etiology of Halo Nevus | Autoimmune phenomena. A preexisting nevus of any type which is surrounded by a rim of depigmentation. Perform a complete skin exam as this phenomenon may occur in vitiligo and in malignant melanoma |
| These nevi are common in kids, rapid growth, and occurs most common on face, scalp, neck and legs | Spitz Nevus |
| Approach to Spitz Nevus | Excision is recommended since melanoma has been reported to arise in Spitz nevi, albeit rarely. This is an ongoing controversy. |
| This Nevi looks like a chocolate chip cookie. Appear in childhood, are benign, and persist | Nevus Spilus; congenital. No tx necessary |
| ____ is a lesion that is not a true nevus, more common in men, associated with a path of hair | Becker's Nevus. No Tx; patients may shave it. |
| Congenital Melanocytic Nevus Tx | Present at birth or during infancy. Increased risk of malignant melanoma in lesions larger than 20 cm.Many dermatologists recommend excision after puberty. Usually dark brown and raise; may have a verrucous surface |
| Freckles AKA | Ephilides. Benign, 1-2 mm, well-defined, red, tan, or brown-colored macules. Autosomal dominant inheritance |
| Lentigo (pl. lentingines) | AKA: age spots, liver spots, wisdom spots. |
| Common and benign enlargement of the sebaceous (oil) glands on the face. | Sebaceous Hyperplasia. 1-3 mm flesh-colored or yellow slightly elevated papules which may have a central umbilication or a “donut” appearance. May have telangectasia and are frequently confused wtih BCC |
| Ectopically located sebaceous glands. | Fordyce Spots. Benign, no tx. |
| Extremely common, benign proliferation of dilated superficial capillaries. | Cherry Angioma. Do not blanch with diascopy, but they are vascular. |
| Common, single or multiple, soft, usually compressible, dark blue to purple-colored, 2-10 mm papule seen on sun-exposed skin.Most common on the lower lip, followed by the ears, but almost always on the face. | Venous Lake. No Tx |
| Common, benign, dilatation of superficial bleed vessels with a distinctive appearance.Composed of an arteriole (body) perpendicular to the skin and multiple radiating capillaries (legs) oriented parallel to the skin surface. | Spider Angioma. Most commonly on face and hands. |
| Normal Variants | Accessory or Supernumery nipples, Accessory Tragus, Accessory Digits, Supernumery Teeth |
| Sign of Leser-Trelat | Sudden eruption of many seborrheic keratoses may be a cutaneous sign of internal malignancy |
| Stucco Keratosis and Dermatosis Papulosa Nigra are forms of | seborrheic keratosis |
Created by:
ltm12