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Basal-cell carcinoma (BCC), also known as basal-cell cancer, basalioma [7] or rodent ulcer, [8] is the most common type of skin cancer. [2] It often appears as a painless raised area of skin, which may be shiny with small blood vessels running over it. [1] It may also present as a raised area with ulceration. [1]
Rosacea. What it looks like: Rosacea causes redness and thick skin on the face, usually clustered in the center.Easy flushing, a stinging sensation, and small, pus-filled pimples are other common ...
An ulcer is a sore on the skin or a mucous membrane, accompanied by the disintegration of tissue. Ulcers can result in complete loss of the epidermis and often portions of the dermis and even subcutaneous fat. Ulcers are most common on the skin of the lower extremities and in the gastrointestinal tract. An ulcer that appears on the skin is ...
Rodent mite dermatitis (also known as rat mite dermatitis) is an often unrecognized ectoparasitosis occurring after human contact with haematophagous mesostigmatid mites that infest rodents, such as house mice, [1] rats [2] and hamsters. [3]
Lesion on a nose. Human eosinophilic granuloma is characterized by abnormal proliferation of Langerhans cells (LCs). LCs are antigen-presenting cells derived from dendritic cells. In humans, eosinophilic granulomas are considered as a benign tumors that occurs mainly in children and adolescents. EG is a quite rare condition, and its incidence ...
SCC of the skin begins as a small nodule and as it enlarges the center becomes necrotic and sloughs and the nodule turns into an ulcer, and generally are developed from an actinic keratosis. Once keratinocytes begin to grow uncontrollably, they have the potential to become cancerous and produce cutaneous squamous-cell carcinoma. [22]
In 1889, Sir Jonathan Hutchinson described a crateriform ulcer on the face”. [16] In 1936, the same condition was renamed "molluscum sebaceum" by MacCormac and Scarf. [ 17 ] Later, the term “keratoacanthoma” was coined by Walter Freudenthal [ 18 ] [ 19 ] and the term became established by Arthur Rook and pathologist Ian Whimster in 1950.
Painful, slow-developing ulcers or furuncle- (boil-) like sores that can last for a prolonged period Nasal myiasis Obstruction of nasal passages and severe irritation. In some cases, facial edema and fever can develop. Death is not uncommon. Aural myiasis Crawling sensations and buzzing noises. Smelly discharge is sometimes present.