Introduction to Dermatopathology Flashcards
(22 cards)
Circumscribed lesion of <5 mm in diameter
Flat
Discolored (often red)
What is the skin lesion? (Refer to lecture pictures)
Macule
Circumscribed lesion of >5 mm in diameter
Flat
Discolored (often red)
What is the skin lesion? (Refer to lecture pictures)
Patch
dome-shaped or flat-topped lesion <5 mm across & palpable
What is the skin lesion? (Refer to lecture pictures)
Papule
Elevated lesion with spherical contour >5 mm
What is the skin lesion? (Refer to lecture pictures)
Nodule
Elevated flat-topped lesion >5 mm
May be caused by coalescent papules
What is the skin lesion? (Refer to lecture pictures)
Plaque
Fluid-filled raised lesion <5 mm
What is the skin lesion? (Refer to lecture pictures)
Vesicle
Fluid-filled raised lesion >5 mm
What is the skin lesion? (Refer to lecture pictures)
Bulla
What is the common term used for vesicle or bulla?
Blister
Discrete, pus-filled, raised lesion
What is the skin lesion? (Refer to lecture pictures)
Pustule
- Itchy
- Transient
- Elevated lesion with variable Blanching & Erythema formed as the result across of dermal edema
What is the skin lesion? (Refer to lecture pictures)
Wheal
- Dry
- Horny
- Plate-like excrescence (growth); usually the result of imperfect cornification
What is the skin lesion? (Refer to lecture pictures)
Scale
- Thickened
- Rough skin characterized by prominent skin markings; usually the result of repeated rubbing in susceptible persons
What is the skin lesion? (Refer to lecture pictures)
Lichenification
Traumatic lesion characterized by breakage of the epidermis, causing a raw linear area (i.e., a deep scratch)
What is the skin lesion? (Refer to lecture pictures)
Excoriation
Separation of nail plate from nail bed is known as
Onycholysis
Intracellular edema of keratinocytes is known as
Hydropic swelling (ballooning)
Infiltration of the epidermis by inflammatory or circulating blood cells is known as
Exocytosis
Discontinuity of the skin exhibiting incomplete loss of the epidermis is known as
Erosion
Discontinuity of the skin exhibiting complete loss of the epidermis and often of portions of the dermis and even subcutaneous fat is known as
Ulceration
intercellular edema in the epidermis is known as
Spongiosis
Formation of vacuoles within or adjacent to cells; often refers to basal cell-basement membrane (BM) zone area is known as
Vacuolization
A linear pattern of melanocyte proliferation within the epidermal basal cell layer is known as
Lentiginous
Lentiginous melanocytic hyperplasia can occur as
- Reactive change or
- part of Neoplasm of melanocytes
