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Medical Dictionary




A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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Iatrapistic
A lack of faith in doctors. Entirely from the Greek: "iatr-" indicating a relationship to a physician or medicine + "a" meaning lack + "pisteuo" meaning I trust in.


Iatrogenic
Due to the activity of a physician or therapy. From the Greek "iatros" meaning physician + "gennao" meaning I produce. Iatrogenic is defined by Merriam-Webster's Collegiate Dictionary as: "induced inadvertently by a physician or surgeon or by medical treatment or diagnostic procedures." For example, an iatrogenic illness is one caused by a medicine or doctor.


Iatromelia
Ineffective or negligent medical treatment. From "iatro-" meaning a relationship to a physician or medicine + the Greek "meleos" meaning fruitless or vain.


Iatromisia
An intense dislike of doctors. From "iatro-" indicating a relationship to a physician or medicine + the Greek "miseo" meaning I hate.


IBD (inflammatory bowel disease)
A group of chronic illnesses that cause inflammation of the bowel -- the small or large intestine. The most common types of inflammatory bowel disease are ulcerative colitis and Crohn’s disease.

The portion of the intestine affected by inflammatory bowel disease becomes irritated and swollen. Ulcers may form.

Inflammatory bowel disease can be limited to the intestine or it can be associated with disease involving the skin, joints, spine, liver, eyes, and other organs.

Although people of any age can be affected by inflammatory bowel disease, the diagnosis is most commonly made in young adults.

The symptoms of inflammatory bowel disease include abdominal pain and diarrhea. These symptoms are far from being specific signposts pointing to inflammatory bowel disease. Therefore, a physician usually has to exclude other illnesses, including bowel infections, before making a firm diagnosis of inflammatory bowel disease.

The course of inflammatory bowel disease is typically unpredictable. Symptoms tend to wax and wane, and long remissions and even the spontaneous resolution of symptoms are well known.

The treatment involves the use of medicines and sometimes surgery, depending upon the type and course of the inflammatory bowel disease under care. Effective therapy exists for the majority of cases. Research in this area is bringing new and promising treatments to patients.


IBS
Irritable bowel syndrome.


Ibuprofen
A non-steroidal anti-inflammatory drug (NSAID) commonly used to treat pain, swelling, and fever. Common brand names include Advil, Motrin, and Nuprin.


Ichthyosis
Dry, rectangular scales on the skin. Like fish scales. From the Greek "ichthys" meaning fish.

Ichthyosis is not one but rather a group of skin disorders characterized by noninflammatory scaling of the skin. Many different metaphors have been used to describe the appearance and texture of the skin in the various types and stages of ichthyosis, for example alligator skin, crocodile skin, collodion skin, porcupine skin and, of course, fish skin.

Most ichthyoses are genetic (inherited). Some ichthyoses develop in association with various systemic diseases or be a prominent feature in certain genetic syndromes. The term "ichthyosis" is commonly used alone to refer to ichthyosis vulgaris.

Ichthyosis vulgaris, also known as ichthyosis simplex, is inherited as an autosomal (nonsex-linked) trait and is characterized by scaly (fishlike) areas of skin. The first scaly skin problems usually appear after 3 months of age. The palms and soles are often affected. Areas that tend to be spared include the axillae (the armpits), the antecubital fossa (the inside area at the bend of the elbow) and the popliteal fossa (behind the knee).

The gene responsible for ichthyosis vulgaris has been mapped to chromosome band 1q21. The product of this gene is thought to be a substance called filaggrin (abbreviated FLG) which may act as the "keratin matrix protein" in cells of the stratum corneum, one of the layers of the skin.


Ichthyosis simplex
Excessively dry skin with scaling. Also called xeroderma. See also ichthyosis vulgaris.


Ichthyosis vulgaris
A genetic skin disease that is inherited as an autosomal (nonsex-linked) trait and is characterized by scaly (fishlike) areas of skin.

The first scaly skin problems usually appear after 3 months of age. The palms and soles are often affected. Areas that tend to be spared include the axillae (the armpits), the antecubital fossa (the inside area at the bend of the elbow) and the popliteal fossa (behind the knee).

A considerable proportion of persons with this disease have asthma, eczema or hay fever.

The gene responsible for this disease has been mapped to chromosome band 1q21. The product of this gene is thought to be a substance called filaggrin (abbreviated FLG) which may act as the "keratin matrix protein" in cells of the stratum corneum, one of the layers of the skin.

The disease is also known as ichthyosis simplex.