Week 4 Terminology (Dermatology) Flashcards
What is a Petechiae?
A small purplish spot on a body surface, such as the skin or a mucous membrane, caused by a minute hemorrhage and often seen in typhus.
Can be seen in thrombocytopenia
Are smaller than Purpura. They are less than 3 mm
What is a purpura?
condition characterized by hemorrhages in the skin and mucous membranes that result in the appearance of purplish spots or patches
Are larger than petechiae. They are 3-10 mm.
What is a Wheal?
A small swelling on the skin, as from an insect bite, that usually itches or burns
What is a Macule?
a discolored spot on the skin that is not raised above the surface.
What is a patch?
a small spot of surface tissue that differs from the surrounding area in color or texture or both and is not elevated above it
What is a plaque?
a flat, often raised patch on the skin or any other organ of the body.
What is a nodule?
a small solid mass or knot that can be easily felt
What is a tumor?
also called neoplasm. a new growth of tissue characterized by progressive, uncontrolled proliferation of cells. The tumor may be localized or invasive, benign or malignant. A tumor may be named for its location, for its cellular makeup, or for the person who first identified it
What is a Vesicle?
a small bladder or blister, containing clear fluid
What is a Bullae?
a blister; a circumscribed, fluid-containing, elevated lesion of the skin, usually more than 5 mm in diameter
What is a Pustule?
A small inflamed skin swelling that is filled with pus
What is folliculitis?
Inflammation of a follicle, especially of a hair follicle
What is ecchymosis?
bluish discoloration of an area of skin or mucous membrane caused by the extravasation of blood into the subcutaneous tissues as a result of trauma to the underlying blood vessels or fragility of the vessel walls.
Also called bruise
What is a hematoma?
A localized collection of blood that accumulates in an organ, tissue, or body space as the result of leakage from a broken blood vessel.
What is a Nevus?
any anomaly of the skin that is present at birth, including moles and birthmarks
