What is Acne ? Acne is the most common skin disease. It usually appears during adolescence. Acne is a disease of the sebaceous glands of the hair and it usually presents as common acne vulgaris, with more frequent detection on the face, back, chest and shoulders. Acne does not have any harmful effects to physical [...]
What is actinic keratosis ? Actinic keratosis (AK) is a precancerous lesion of the skin and appears as a dry, scaly and sometimes hyperkeratotic lesion, as a result of prolonged and repeated exposure to the sun. The typical lesion is dry, scaly, with a skin tinge, red-brown or yellow-black. The onset of AD is indistinguishable [...]
What is atopic dermatitis ? Atopic dermatitis is a very common, chronic, non-infectious allergic skin disease, which is characterized by: * Intense itching (itching) * Typical skin lesions * Family history of allergic diseases (allergic predisposition) It could be distinguished into: A. Atopic dermatitis of infants (or also called infantile eczema). Usually in the 2nd [...]
What is basal cell carcinoma - epithelium ? Basal cell carcinoma, or basal cell epithelioma, is the most common malignancy in humans and accounts for 75% of skin cancers. It usually affects patients over 40 years. Its appearance is directly related to the sun or exposure to ultraviolet radiation, which is why most of them [...]
What is bursitis ? Bursitis is an inflammation of the hair follicles. It is usually due to bacteria or mechanical irritation and continuous injury of the hair follicle from tight clothing. Bacterial infection can be superficial or even deep. The lesions on the skin will appear suddenly and can be easily transmitted to other parts [...]
What is chickenpox ? It is a highly contagious viral disease caused by the varicella zoster virus. Transmission occurs either by droplets or by direct contact with the lesions. The incubation period lasts about two weeks, and the rash may be accompanied by general malaise and fever. The rash, which lasts about a week, consists [...]
What is contact dermatitis ? Contact dermatitis is an inflammatory skin disease caused by direct contact with an irritant or allergen. It is a common skin disease usually characterized by itching, redness, dryness and blisters. Sometimes it looks like a burn. Irritants are soaps, detergents, and other chemicals. Allergic contact dermatitis is caused if you [...]
What Is Dermatitis ? Dermatitis is a broad term for inflammation of the skin and includes contact dermatitis, seborrheic dermatitis and eczema. Contact dermatitis has many possible causes. Ιt may be due to a plant or certain fruits. It can also be due to some household chemical cleaners such as disinfectants, soaps and acetone, while [...]
What is eczema ? Eczema is an inflammatory reaction of the skin caused by a large number of exogenous factors that can act alone or in combination with each other. The skin shows a rash (redness), swelling (slight swelling), blisters and often accompanied by itching. For the treatment, local medication is usually enough, but the [...]
What is Erysipelas ? Erysipelas is an acute febrile inflammation of the skin with a significant lymphatic involvement. It is mainly due to group A streptococci, and more rarely to other groups. Sometimes the infection can spread deeper into the skin and take the form of cellulite. Microorganisms can enter the skin, after discontinuities [...]
What is herpes simplex ? Herpes simplex is a viral disease caused by the herpes simplex virus 1 and the herpes simplex virus 2. Herpes virus infection is categorized based on the site of infection. The virus can infect any area of the body. The most common herpes infection is cold sores. Clinically, the well-known [...]
What is Herpes zoster ? Herpes zoster is an infection caused by the virus that also causes chickenpox (varicella zoster virus, VZV). Herpes zoster is due to the activation of the chickenpox virus that had infected humans in old age. After the initial chickenpox infection is over, the VZV virus remains inactive without causing any [...]
What are keloids and hypertrophic scars ? Hypertrophic scars and keloids are benign skin lesions caused by excessive growth of fibrous tissue due to uncontrolled collagen synthesis and deposition. They are most commonly found in young people with dark skin. They occur after injuries, surgical incisions, burns or diseases such as acne, or they [...]
What is a keratoacanthoma ? Keratoacanthoma is a common benign skin lesion that occurs in middle-aged people and it can develop into squamous cell carcinoma. It mainly grows on exposed skin such as the central part of the face, arms and legs. Several factors are thought to play a role in its development such as [...]
What is Melanoma ? Malignant melanoma is a form of cancer that develops from cells of the base layer layer of the skin called melanocytes. The frequency of melanoma has been growing in recent years.Melanoma is a very aggressive form of skin cancer caused by melanocytesof the skin and it easily gives metastases to other [...]
What is melasma ? Melasma is a skin discoloration that occurs mainly in the area of facial skin. Melasma occurs exclusively in adults and most commonly in women during pregnancy. The areas of the face that are most often affected by melasma are the forehead, cheeks, upper lip and cheeks of the nose. Melasma occurs [...]
What is nodular erythema ? It is a rash consisting of nevi and erythema that occurs mainly on the extensor surfaces of the limbs. It is usually due to non-streptococcal infections, enteropathies, chlamydial infections,mycoplasma, hepatitis B and various drugs. The rash is preceded by malaise, fatigue and arthralgias, and possibly a low-grade fever. Treatment [...]
What are papillomas? Papillomas are often confused by people and are called “moles". They are caused by the human papillomavirus (HPV). They are found in the neck, face, armpits, chest, thighs and less frequently in other parts of the body. They are mainly transmitted by skin contact, and then they are propagated by [...]
Pediatric dermatology belongs to the branch of dermatology that deals with childhood skin diseases, up to the age of 14 years. Children can be affected by the same skin diseases that affect adults but also by particular dermatological problems that mainly affect children. A dermatological examination in children can present many difficulties, such as obtaining [...]
What Is Psoriasis ? Psoriasis is a chronic inflammatory skin disease that affects about 1-3% of the population. It affects all ages, and occurs with equal frequency in men and women. In many patients, there is a family history of psoriasis. Psoriasis is an autoimmune disease, with an unknown exact cause. Its progress is characterized [...]
What is pyogenic granuloma ? Pyogenic granuloma is a common skin lesion consisting of a brittle papule of vascular origin. Itusually develops after anskin or mucosa injury. It more often occurs in children and pregnant women. As relapses are common, they must be treated aggressively, with damage to the lesion by the dermatologist. Read MorePediatric [...]
What is rosacea ? Rosacea is a very common skin disorder that affects many people in the world. Symptoms: red spots, varicose veins, small red "pimples" without pus, "red cysts". Symptoms may disappear in days, weeks or even months and return. Many people are unaware that they have rosacea and justify their redness as a [...]
What is urticaria ? Urticaria is the most common expression of skin allergy. It is characterized by wheals appearance. It got its name from the urtica plant (nettle) since the rash that characterizes it in many cases resembles that of a nettle. Wheals are localized swellings of the skin, usually pale in the center and [...]
What is variegated dandruff? Variegated dandruff is a fungal skin infection. It is a contagious disease and appears with small white, pink or brown spots that show dandruff peeling and are located on the chest, shoulders, ribs, neck and abdomen. The spots are initially small in size and can be found solitary or in [...]
Verrucas They are benign tumors (hyperplasia), due to some strains of the human papillomavirus (HPV) that can infect humans causing many other diseases.It is usually transmitted by simple contact to areas where there are abrasions or minor injuries. Then there may be dispersal in the same person.The lesion appears one or up to several [...]
What is vitiligo ? Vitiligo is a skin condition that leads to damage and loss of melanocytes, which produce melanin, which gives skin its dark color. White plaques or spots, that can be found on any part of the body, appear in vitiligo. It occurs in 0.5-1% of the population and affects both sexes at [...]
What is xanthelasma ? Xanthelasma (also known as xanthelasma palpebra) is a skin damage that consists of fat droplets and admixture of other cells that give it the typical blonde light yellow color. They are mainly located under the skin on the upper and lower eyelids. Xanthelasmas are usually due to primary or secondary hyperlipidemia, [...]
