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Schematic image comparing a skin fissure to an erosion and an ulcer. The surface of the knuckles of a hand with xeroderma, showing skin cracking (generalized skin fissuring). A skin fissure is a cutaneous condition in which there is a linear-like cleavage of skin , sometimes defined as extending into the dermis . [ 1 ]
The danger triangle of the face consists of the area from the corners of the mouth to the bridge of the nose, including the nose and maxilla. [1] [2]: 345–346 Due to the special nature of the blood supply to the human nose and surrounding area, it is possible for retrograde infection from the nasal area to spread to the brain, causing cavernous sinus thrombosis, meningitis, or brain abscess.
[3] [1] People with this condition may have skin symptoms such as the urge to pick at one's skin (excoriation) or a sensation resembling insects crawling on or under the skin (formication). Morgellons disease is a related constellation of symptoms. This self-diagnosed condition is considered a form of a type of delusional parasitosis.
The skin weighs an average of 4 kg (8.8 lb), covers an area of about 2 m 2 (22 sq ft), 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 nonhairy skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [16]
In The Sign of the Four by Sir Arthur Conan Doyle, where Bartholomew Sholto is killed by a poison dart. Dr. Watson confirms it was strychnine poisoning, causing tetanus, thus the devilish grin on the dead Sholto's face. In The Invisible Man by H. G. Wells, the Invisible Man relates that he took strychnine as a sleeping aid. "Strychnine," he ...
How myiasis affects the human body depends on where the larvae are located. Larvae may infect dead, necrotic (prematurely dying) or living tissue in various sites: the skin, eyes, ears, stomach and intestinal tract, or in genitourinary sites. [5] They may invade open wounds and lesions or unbroken skin. Some enter the body through the nose or ears.
In short, melasma is a chronic skin condition that appears as darkened areas on the face due to an overproduction of melanin, says Gina Charles, MO, a family physician specializing in skincare. It ...
When you crack your neck, that feeling of relief is caused by releasing some gas bubbles which relieves some of the pressure inside the joint.” The cracking sound that you hear or feel is the ...