Skin Diseases

Definition Erysipelas is an infection of the upper layers of the skin (superficial). The most common cause is group A streptococcal bacteria, especially Streptococcus pyogenes. Erysipelas results in a fiery red rash with raised edges that can easily be distinguished from the skin around it. The affected skin may be …

Definition Darier disease (DAR/ Darier disease/ Dyskeratosis Follicularis / Darier–White disease/ Keratosis follicularis) is a rare, often chronic, genetic disorder characterized primarily by non-contagious skin changes. Darier disease or Keratosis Follicularis is an autosomal disorder, meaning that a single gene inherited from one parent causes this disease. Like Hailey-Hailey disease, …

What is sebaceous hyperplasia? Sebaceous hyperplasia is the term used for enlarged sebaceous glands seen on the forehead or cheeks of the middle-aged and older people. Sebaceous hyperplasia appears as small yellow bumps up to 3 mm in diameter. Close inspection reveals a central hair follicle surrounded by yellowish lobules. …

What is lichen sclerosus? Lichen sclerosus (LS) is a long-term (chronic) skin condition. It causes the skin to become thin, white, and wrinkly. It may occur in men, women, and children at any age. But it is most common in women older than age 50. Skin has several layers. The …

Overview – Dyshidrotic Eczema Dyshidrotic eczema is an ongoing (chronic) skin condition. It is also called as pompholyx. It causes a burning, itching feeling. Severe dyshidrotic eczema may also cause a blistering rash. It can affect your palms, the sides of your fingers, and the soles of your feet. It’s …

What is Morgellons disease? Morgellons disease (MD) is a rare disorder characterized by the presence of fibers underneath, embedded in, and erupting from unbroken skin or slow-healing sores. Some people with the condition also experience a sensation of crawling, biting, and stinging on and in their skin. These symptoms can …

Definition Dermatomyositis is one of a group of muscle diseases known as the inflammatory myopathies, which are characterized by chronic muscle inflammation accompanied by muscle weakness.  Dermatomyositis’ cardinal symptom is a skin rash that precedes, accompanies, or follows progressive muscle weakness.  The rash looks patchy, with purple or red discolorations, …

Definition Pemphigus Vulgaris is an autoimmune disorder that involves blistering and erosion of the skin and mucous membranes. It occurs almost exclusively in middle-aged or older people. The primary lesion of pemphigus vulgaris is a soft blister filled with clear fluid that appears on healthy or irritated skin. Many cases …