Category: A

The bringing of a drug to market more rapidly than most other drugs, typically because the drug serves a compelling public health interest.  

Irregularity; deviation from the normal.  

A family of mites that irritate the skin.  

A parasitic twin without a heart, therefore using the circulation of its twin.  

Congenital absence of the heart (e.g., in a monozygotic twin supported by the circulatory system of the other fetus).  

A cystic tumor, often familial, occurring on the chest and face and in the axillary regions. The tumor contains tissues resembling sweat glands and hair follicles.  

A benign tumor of the skin. It was previously used to denote skin cancer. A benign growth consisting of cells originating from the outer layer of the skin is referred to as an acanthoma. There are different types of acanthoma, with the face being the most common location where they appear, typically developing within hair…

Obsolete term for epidermolysis bullosa.  

Hypertrophy of the horny portion of the skin of the palms of the hands and soles of the feet and thickening of the nails.  

Widespread infection of skin and bones with Acanthocephala. It is most often seen in immunosuppressed patients.