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Path 17

Common Tumors of the Skin

What is a common, sharply demarcated, light tan to deep brown tumor elevated (stuck on) above the adjacent normal epidermis Seborrhic keratoses
When do you remove Seborrhic keratoses for cosmetic purposes
What is a small, soft, flesh colored papillary or polypoid lesion often multiple skin tag
what does a skin tag look like microscopically core of reticular dermal collagen covered by normal or sometimes paillomatous, seborrheic keratosis like epidermis
what are some other names for skin tags fibroepithelial polyps or acrochordons
What is the name for a cystic dilation of follicular infundibulum, lined by epidermis and filled with keratin epidermal cysts
What are some other terms for epidermal cysts wen and sebaceous cysts
What is a relatively common, distinctive benign epidermal turmor that grows rapidly to produce a dome shaped nodule with a central keratin crater Keratoacanthoma
How do you treat a keratoacanthoma the growth usually stops after a few weeks adn the lesion then slowly involutes leaving a scar
A keratoacanthoma may be difficult to distinguish from what carcinoma? squamous cell
Adnexal Tumors refer to a wide variety of tumors of ? origin sweat glands, sebaceous, and follicular origin
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
What carcinoma commonly arises from areas of actinic keratosis squamous cell carcinomas
What are the histological features of actinic keratosis epidermal proliferatio and mild to marked cytologic atypicality of keratinocytes, especially those near the basilar layer
What is Bowen's disease it is a term applied to squamous cell carcinoma in situ of the skin
Where does Bowen's disease show up? anywhere on the cutaneous surface including sun protected and exposed sites
What is the histological picture of Bowen's disease full thickness epidermal atypia
Once Bowen's lesions are invasive the metastatic rate may be as high as? 40%
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
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
Is the main cause of death from basal cell carcinoma local tissue invasion or metastasis Local tissue invasion
What is the name of a common firm relatively immobile intradermal nodule, usually found on the extremities of young or middle aged adults dermatofibroma
What are the two common distinctive forms of hemangiomas infantile capillary hemangiomas (strawberry hemangiomas) and lobular capillary hemangiomas (pyogenic granuloma)
What is the treatment for infantile capillary hemangiomas Wait until mid childhood when they should disappear unless they compromise important functions such as breathing
Kaposi's sarcoma has been associated with what virus HHV8
What is the most common Primary cutaneous lymphoma The T cell lymphoma with the misleading name - mycosis fungoides
Created by: UVAPATH1