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Rosacea conglobata is a severe rosacea that can mimic acne conglobata, with hemorrhagic nodular abscesses and indurated plaques. [26] Phymatous rosacea is a cutaneous condition characterized by overgrowth of sebaceous glands. [11] Phyma is Greek for swelling, mass, or bulb, and these can occur on the face and ears. [26]: 693
This is a shortened version of the twelfth chapter of the ICD-9: Diseases of the Skin and Subcutaneous Tissue. It covers ICD codes 680 to 709. The full chapter can be found on pages 379 to 393 of Volume 1, which contains all (sub)categories of the ICD-9. Volume 2 is an alphabetical index of Volume 1.
Acne (/ˈækni/ ACK-nee), also known as acne vulgaris, is a long-term skin condition that occurs when dead skin cells and oil from the skin clog hair follicles. [10] Typical features of the condition include blackheads or whiteheads , pimples , oily skin, and possible scarring .
Pityriasis rosea is a type of skin rash. [2] Classically, it begins with a single red and slightly scaly area known as a "herald patch". [2] This is then followed, days to weeks later, by an eruption of many smaller scaly spots; pinkish with a red edge in people with light skin and greyish in darker skin. [4]
Rhinophyma develops in some individuals after long-standing rosacea that has progressed to acne rosacea. [2] Rosacea usually commences in people between the age of 20–30 years. Rosacea begins with facial flushing (pre-rosacea). The nasal skin then thickens and hypervascularises, leading to persistent erythema (vascular rosacea).
Acne conglobata is a highly inflammatory disease presenting with comedones, nodules, abscesses, and draining sinus tracts. [1] [2] This condition generally begins between the ages of 18 and 30. It usually persists for a very long time, and often until the patient is around 40 years old.
Unlike rosacea which involves mainly the nose and cheeks, there is no telangiectasia in perioral dermatitis. Rosacea also has a tendency to be present in older people. Acne can be distinguished by the presence of comedones and by its wider distribution on the face and chest. [10] There are no comedones in perioral dermatitis. [4]
Lupus miliaris disseminatus faciei, also known as acne agminata, is a disease with a similar appearance to acne vulgaris. [ 1 ] [ 2 ] The cause of LMDF is unknown. LMDF usually occurs on the face, but extrafacial presentations have been reported.