It is the study of cutaneous diseases at a microscopic level, which also involves studying potential causes of skin, nail or hair disorders at the cellular level. It is a sub-specialty of dermatology and surgical pathology.
Acne is a disorder that affects the skin’s oil glands and hair follicles. Plugged pores and outbreaks of lesions, commonly called pimples or zits, occur on the face, neck, back, chest, and shoulders.
A blister (bulla, or, when small, a vesicle) is a bubble of fluid that forms beneath a thin layer of dead skin. These blisters heal more slowly and may leave scars.
Some skin disorders, like contact dermatitis, are temporary and relatively on the skin composed of blackheads, whiteheads, pimples, or deep, painful, scaly, silvery, sharply defined skin patches.
It is an uncomfortable, irritating sensation that makes you want to scratch. Also known as pruritus (PROO-RIE-tus), itchy skin can be caused or worsened by dry skin.
Hyper-hydro-sis disorder is a condition that results in excessive sweating. This sweating can occur in unusual situations, such as in cooler weather, or without any trigger at all.
Atopic dermatitis (eczema) is a condition that makes your skin red and itchy. It is long lasting (chronic) and tends to flare periodically.
Ulcers are characterized by segmental or more extensive loss of the epidermis, including the basement membrane, with exposure of the underlying dermis. Erosion is characterized by the partial loss of the epithelium, with the basement membrane left intact.
Pronounced “lee-Sion” with the emphasis on the “lee,” a lesion can be almost any abnormal change involving any tissue or organ due to disease or injury. A benign lesion is non-cancerous whereas a malignant lesion is cancerous.
Pigmentation means coloring. Skin pigmentation disorders affect the color of your skin. Pregnancy, Addison’s disease, and sun exposure all can make your skin darker. If your body makes too little melanin, your skin gets lighter. Vitiligo is a condition that causes patches of light skin.
Pustules are small bumps on the skin that contain fluid or pus. This is a very common skin condition, particularly among teenagers and young adults.
Contact dermatitis is an inflammation of the skin because of an external agent acting as an irritant or allergen. Additionally, medications that frequently cause contact dermatitis include benzocaine, hormonal creams, corticosteroids, topical anti-fungal, and antibiotics.
Scaly skin is a common symptom of dry skin and can occur anywhere on the body, although it is most common on the lower legs, arms and thighs. Scaly skin is also seen with inflammatory conditions of the skin (dermatitis), such as seborrheic dermatitis or dandruff.
Systemic Disease is a common chronic, superficial inflammatory disease of the scalp, face (especially the eyebrows and nasolabial folds), ears, and central chest, affecting 2% to 5% of the population. Clinically, the disease is characterized by thin erythematous plaques, often with a fine, greasy scale.
These conditions are acquired in tropical and subtropical regions. Tropical skin diseases are often carried by insects and are transmitted when the insects bite humans.
Vascular skin diseases range from problems with your arteries, veins, and vessels that carry lymph to disorders that affect how your blood flows. A disease can mean your tissues aren’t getting enough blood, a condition called ischemia, as well as other serious, even life-threatening, problems.