what is the etiology of keratoacanthoma?
315683
What causes keratoacanthoma? Keratoacanthoma arises from hair follicle skin cells for unknown reasons. Some keratoacanthomas appear to be related to infection with human papillomavirus (HPV), the cause of warts, but the majority of keratoacanthomas are not found to be due to HPV.
225516
The most frequent skin tumors remain sarcoids at 36.8%, which look like a wart but are not. It seems that they are caused by flies who spread the bovine papillomavirus by landing on old wounds, scars, injuries or insects' bites; they are not contagious for other horses, for cattle, for pets or for humans.
1156440
Actinic keratosis is a precancerous skin condition characterized by scaly, crusty spots on the hands, arms, or face. These spots are typically brown, gray, or pink.
1248213
Basal cell carcinoma (BCC) is most often a benign form of skin cancer caused by exposure to ultraviolet (UV) light. However, it's the most frequently occurring form of all skin cancers, with more than 3 million people developing BCC in the U.S. every year.
1430719
Basal cell carcinoma (BCC) is caused by damage and subsequent DNA changes to the basal cells in the outermost layer of skin. Exposure to ultraviolet (UV) radiation from the sun and indoor tanning is the major cause of BCCs and most skin cancers.
58931
Styes are caused by a bacterial infection in an oil gland or hair follicle on your eyelid. These glands and follicles can get clogged with dead skin cells and other debris. Sometimes, bacteria get trapped inside and cause an infection. This results in a swollen, painful lump called a stye.
1329178
Seborrhoeic keratoses are very common, harmless, growths on the skin. They can be pink or light brown to almost black in colour. They have a number of different names including seborrhoeic warts and basal cell papillomas.
836296
There are several causes of corneal ulcers in dogs. "The most common cause is trauma." The most common cause is trauma. An ulcer may result from blunt trauma, such as a dog rubbing its eye on the carpet, or due to a laceration, such as a cat scratch or a contact with a sharp object.
1442037
['Bacteria cause cellulitis, impetigo, and staphylococcal (staph) infections.', 'Viruses cause shingles, warts, and herpes simplex.', "Fungi cause athlete's foot and yeast infections.", 'Parasites cause body lice, head lice, and scabies.']
1171468
Ultraviolet keratitis, also known as photokeratitis, is a painful eye condition caused by exposure to ultraviolet rays, often from the sun. Ultraviolet keratitis can be compared to a sunburn, except that it affects the corneas of the eyes instead of the skin.
218054
Sunlight-induced DNA damage is considered to be the main cause for the genetic changes responsible for skin lesions and carcinogenesis, according to research. If enough DNA damage builds up over time, it can cause cells to start growing out of control, which can lead to skin cancer.
256428
Warts are skin growths that are caused by the human papillomavirus (HPV). There are more than 60 kinds of HPV, some of which tend to cause warts on the skin. HPV stimulates quick growth of cells on the skin's outer layer. In most cases, common warts appear on the fingers, near the fingernails, or on the hands.
1240632
Prolonged exposure to ultraviolet radiation from the sun can lead to melanoma and other skin malignancies. Clear evidence establishes ultraviolet radiation, especially the non-ionizing medium wave UVB, as the cause of most non-melanoma skin cancers, which are the most common forms of cancer in the world.
356092
A corneal ulcer is an open sore of the cornea. There are a wide variety of causes of corneal ulcers, including infection, physical and chemical trauma, corneal drying and exposure, and contact lens overwear and misuse. Corneal ulcers are a serious problem and may result in loss of vision or blindness.
12796
They're caused by a common virus called herpes simplex. Contact dermatitis is an allergic skin reaction that produces an itchy, red skin rash. The rash may consist of raised, red bumps that ooze, drain, or crust. Corns or calluses are rough, thickened areas of skin.
709480
['eye melanoma.', 'squamous cell carcinoma.', 'lymphoma.', 'retinoblastoma – a childhood cancer.']
73125
Warts are common, harmless skin growths caused by a type of virus called human papillomavirus (HPV). There are more than 100 types of papillomavirus. Different types of warts are caused by different types of papillomavirus. Warts can spread to other parts of the body and to other people.