Common Tumors of the Skin
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| What is a common, sharply demarcated, light tan to deep brown tumor elevated (stuck on) above the adjacent normal epidermis | Seborrhic keratoses
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| When do you remove Seborrhic keratoses | for cosmetic purposes
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| What is a small, soft, flesh colored papillary or polypoid lesion often multiple | skin tag
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| what does a skin tag look like microscopically | core of reticular dermal collagen covered by normal or sometimes paillomatous, seborrheic keratosis like epidermis
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| what are some other names for skin tags | fibroepithelial polyps or acrochordons
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| What is the name for a cystic dilation of follicular infundibulum, lined by epidermis and filled with keratin | epidermal cysts
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| What are some other terms for epidermal cysts | wen and sebaceous cysts
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| What is a relatively common, distinctive benign epidermal turmor that grows rapidly to produce a dome shaped nodule with a central keratin crater | Keratoacanthoma
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| How do you treat a keratoacanthoma | the growth usually stops after a few weeks adn the lesion then slowly involutes leaving a scar
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| A keratoacanthoma may be difficult to distinguish from what carcinoma? | squamous cell
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| Adnexal Tumors refer to a wide variety of tumors of ? origin | sweat glands, sebaceous, and follicular origin
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| What is the name of small, variably colored scaly papules or patches, often multiple, that develop on sun-exposed surfaces of middle aged or elderly, fair skinned individuals who have chronic sun exposure | Actinic keratosis
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| What carcinoma commonly arises from areas of actinic keratosis | squamous cell carcinomas
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| What are the histological features of actinic keratosis | epidermal proliferatio and mild to marked cytologic atypicality of keratinocytes, especially those near the basilar layer
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| What is Bowen's disease | it is a term applied to squamous cell carcinoma in situ of the skin
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| Where does Bowen's disease show up? | anywhere on the cutaneous surface including sun protected and exposed sites
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| What is the histological picture of Bowen's disease | full thickness epidermal atypia
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| Once Bowen's lesions are invasive the metastatic rate may be as high as? | 40%
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| When Squamous cell carcinomas develop in certain locations they have a higher liklihood of metastasis compared to those that arise in actinic keratoses. What are some examples of these increased risk areas | lesions that develop do novo on sun protected skin, at mucocutaneous junctions, in burns or radiation scars, or in chronic ulcers or draining sinuses
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| What is the name of a lesion that is a pearly translucent papule or nodule with surface telangiectasia and often a central ulceration (rodent ulcer) | Basal Cell Carcinoma
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| Is the main cause of death from basal cell carcinoma local tissue invasion or metastasis | Local tissue invasion
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| What is the name of a common firm relatively immobile intradermal nodule, usually found on the extremities of young or middle aged adults | dermatofibroma
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| What are the two common distinctive forms of hemangiomas | infantile capillary hemangiomas (strawberry hemangiomas) and lobular capillary hemangiomas (pyogenic granuloma)
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| What is the treatment for infantile capillary hemangiomas | Wait until mid childhood when they should disappear unless they compromise important functions such as breathing
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| Kaposi's sarcoma has been associated with what virus | HHV8
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| What is the most common Primary cutaneous lymphoma | The T cell lymphoma with the misleading name - mycosis fungoides
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