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Comedo |
Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson | 0.01 sec. |
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comedo /com·e·do/ (kom´e-do) pl. comedo´nes a plug of keratin and sebum within the dilated orifice of a hair follicle, frequently containing the bacteria Propionobacterium acnes, Staphylococcus albus, and Pityrosporon ovale. closed comedo whitehead; a comedo whose opening is not widely dilated, appearing as a small, flesh-colored papule; it may rupture and cause an inflammatory lesion in the dermis. open comedo blackhead; a comedo with a widely dilated orifice in which the pigmented impaction is visible at the skin surface.
Comedo A hard plug composed of sebum and dead skin cells. The mildest type of acne. Mentioned in: Acne comedo pl. comedones; a blackhead; a plug of keratin and sebum within the dilated orifice of a hair follicle frequently containing bacteria. Found in feline and canine acne, hyperadrenocorticism, Schnauzer comedo syndrome (see below). Schnauzer comedo syndrome a condition in which numerous comedones form in the skin over the back of certain predisposed Schnauzer dogs, usually of the miniature variety. The cause is unknown but believed to be an inherited disorder of keratinization. |
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Recurrent deep inflammation of cysts repeatedly required and still requires surgical interventions and mechanical removal of the comedones, oral adminstration of methyl-prednisolone (4-40 mg/day Urbason; Hoechst Marion Roussel, Vienna, Austria), and analgesic drugs and antibiotics. There are two kinds of pimples: comedones, also known as blackheads, and other more unpleasant inflammations called papules, pustules or nodules, which range from a typical red pimple to a painful, pus-filled zit. The doctor may remove the patient's comedones during office visits. |
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