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Keratosis obturans is a relatively uncommon ear disease, where a dense plug of keratin, formed by abnormal accumulation of desquamated skin in sheet-like layers , forms in the bony (deeper) part of the external auditory canal. [1]
Other symptoms to note: Contact dermatitis appears following exposure to an irritant or allergen, and it’s the most common rash caused by external factors, Dr. Zeichner says. (This can include ...
[2] [3] The most common cause of otitis externa is bacterial. Risk factors for acute cases include swimming, minor trauma from cleaning, using hearing aids and ear plugs, and other skin problems, such as psoriasis and dermatitis. [2] [3] People with diabetes are at risk of a severe form of malignant otitis externa. [2]
The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3]
Perioral dermatitis, also known as periorificial dermatitis, is a common type of inflammatory skin rash. [2] Symptoms include multiple small (1–2 mm) bumps and blisters sometimes with background redness and scale, localized to the skin around the mouth and nostrils. Less commonly, the eyes and genitalia may be involved. [3]
Globally, head and neck cancer accounts for 650,000 new cases of cancer and 330,000 deaths annually on average. In 2018, it was the seventh most common cancer worldwide, with 890,000 new cases documented and 450,000 people dying from the disease. [12] The usual age at diagnosis is between 55 and 65 years old. [13]
Although the disease is easily treatable, in severe cases boils may form inside the nostrils, which can cause cellulitis at the tip of the nose. The condition becomes serious because veins at that region of the face lead to the brain, and if bacteria spreads to the brain via these veins, the person may develop a life-threatening condition called cavernous sinus thrombosis, which is an ...
In general, the disease often causes skin to darken near the affected area and raised bumps or papules to appear. [3] In addition, hair follicles can become damaged which cause hair loss. [ 3 ] Hidradenitis is very similar, but tends to have a secondary bacterial infection so that pus-draining sinuses are formed.