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43 Cards in this Set

  • Front
  • Back
five types of benign epithelial tumors of the skin
Seborrheic Keratosis, Acanthosis Nigricans, Fibroepithelial polyp, Epithelial cyst, Keratoacanthoma
Seborrheic Keratosis
occur most frequently in middle aged or older individuals arise spontaeously uniformly tan to dark brown usually show a velvety to granular surface
Acanthosis Nigricans
thickened hyperpigmented zones of skin involving most commonly the flexural areas two types-benign and malignant
Fibroepithelial polyp
incidental finding in middle aged and older individuals on the neck trunk and face intertriginous areas as a soft flesh colored baglike tumor attached to skin surface by small often slender stalk
epithelial cyst
formed by downgrowth and cystic expansion of the epidermis or of the epithelium forming the hair follicle, cysts are filled with keratin and vairable amounts of admixed lipid containing debris derived from sebaceous secretions
rapidly developing neoplasm that clinically and histologically mahy mimic well differentiated squamous cell carcinoma
the most common adnexal tumors of the skin are
appendage tumors, eccrine poroma, cylindroma, syringoma, trichoepithelioma
appendage tumors
are often clinically nondescript solitary or multiple papules and nodules
eccrine poroma
occurs predominantly on the palms and soles
appendage tumor with apocrine differentitation usually occurs on the forehead and scalp where coalescence of nodules with time may produce a hatlike growth hence the name turban tumor
lesions of eccrine differentiation usually occur as multiple small tan papules in the vicinty of the lower eyelids
follicular differentiation are dominantly inherited when they are seen as multiple semitransparent, dome shaped papules that involve the face, scalp ncek and upper trunk
the most common premalignant skin lesions
actinic keratoses are usually less than 1 cm in diameter are tanbrown red or skin colored and have a rough sandpaper like consistency
the most common malignant tumor of the skin of the older people is
squamous cell carcinoma
the four most common tumors of the dermis are?
benign fibrous histicytoma (dermatofibroma), dermatofibrosarcoma protuberans, Xanthoma, dermal vascular tumors
Beging firous histiocytoma
formed by benign spindle shaped fibroblasts arranged in a well-defined nonencapsulated mass within the middermis usually seen in adults often occur on the legs of young to middle aged women
Dermatofibrosarcoma protuberans
well differentiated primary fibrosarcoma of the skin slow growing locally aggressive rarely metastasize
tumor like collections of foamy histiocytes within the dermis may be associated with familial or acquired disorders resulting in hyperlipidemia with lymphoproliferative
dermal vascular tumors
begning vascular neoplasms malformations mulitfocal angioproliferative lesions vascularized variants of other tumors and malignant vascular tumors
mycosis fungoides
mycosis fungoides is the T cell lymphoproliferative disorder that arises primarly in the skin and that may evolve into generlized lymphoma
common disorder characterized by partial or complete loss of pigment producing melanocytes within the dermis
Freckle (ephelis)
most common pigmented lesion of childhood in lightly pigmented individuals will fade and reappear in a cyclic fashion with winter and summer respectively
masklike zone of facial hyperpigmentation commonly seen in associated with pregnancy. presents as poorly defined blotchy macules involving the cheeks temples and forehead bilaterally
a common benign localized hyperplasia of melanocytes occurring at all ages but often in infancy and childhood
what type of nevi are precursors of malignant melanoma
Dysplastic nevi
the most important clinical sign of malignant melanomoa is
change in color of pigmented lesion
what are the 5 clinical warning signs of melanoma?
enlargment of preexisting mole, itiching of pain in preexisting mole, development of a new pigmentedlesion during adult life, irregularity of borders of pigmented lesion, variation of color within pigmented lesion
common disorder of skin characterized by localized mast cell degranulation and resultant dermal microvascular hyperpermeability culminating in pruritic edematous plaques called whales
Acute eczematous dermatitis
characterized by red papulovesicular oozing and crusted lesion early on that with persistence eventuat into raised scaling plaques
Erythema multiforme
uncommon selflimited disorder that appears to be hypersensitivity response to certain infection and drugs
most frequently affects the skin of hte elbows knees scalp lumbosacral areas intergluteal cleft and glans penis
Lichen Planus
pruritic purple polygonal papules are the presenting signs of the disorder of skin and mucosus membranes
autoimmune blistering disorder resulting from loss of the integrity of normal intercellular attachments withing the epidermis and mucosal epithelium
Bullous Pemphigoid
distinct relatively common autoimmune vesiculobullous disease generally affecting elderly individuals bullous pemphigoid shows a wide range of clinical presentations with localized to generalized cutaneous lesions
Dermatitis Herpetiformis
charcterized by uritcaria and vesicles affects more males then females and age at onset is 3rd to 4th decade
Molluscum contagiosum
tinea capitus
tinea barbae
tinea corporis
tinea crura
tinea pedis