What is a corn? A corn is an area of thickened epidermis that results from chronic friction or pressure. They appear as yellow or white papules. Corns are very common, often occurring on the toes or heel. When they occur between the toes, they are “soft corns” due to the presence of moisture. Many are asymptomatic [...]
What is colloid millium? Colloid millium appears as multiple, small (1-3 mm) yellow papules in sun-exposed areas, especially the face, neck and back of the hands. It is a sign of photoaging.
What is cicatricial pemphigoid? Cicatricial pemphigoid is a chronic vesiculobullous disease with a tendency to affect the mucous membranes of the eyes and mouth. Scarring often results. Other mucosal surfaces may be involved as well, including the esophagus, upper airways, anus, and external genitalia. Chronic inflammation of the oral mucosa may lead to loss of teeth. [...]
What is cellulitis? Cellulitis is a deep infection of the skin; it results in dermal erythema. The affected area is red, warm, indurated (hard) and tender. The responsible organisms are usually Staphylococcus aureus or Streptococus pyogenes (Group A streptecocci). Prior to the advent of a vaccine, Haemophilus influenzae was the most common cause of facial cellulitis in young children; Streptococus pyogenes is now the [...]
What is the Carcinoid Syndrome? The carcinoid syndrome results from the production of vasoactive substances by a carcinoid tumor. Cutaneous manifestations include flushing. It can sometimes be confused with the early flushing of acne rosacea.