Category: C

Elevated levels of methemoglobin in the blood, resulting from one of several hereditary deficiencies of methemoglobin reductase. Affected persons may appear mildly cyanotic but are rarely symptomatic.  

The building-up processes by which complex substances are synthesized from simple carbohydrates, amino acids, fats, and other nutrients.  

The sum of the physical and chemical changes involved in the breakdown and synthesis of carbohydrates in the body. Carbohydrates are digested to hexose monosaccharides which are absorbed by the small intestine; the liver converts fructose and galactose to glucose. In the liver and muscles, glucose may be converted to glycogen. In all cells, glucose…

Inflammation of the meninges, marked by persistent fever, headache, and stiff neck (associated, on lumbar puncture, with cerebrospinal fluid pleocytosis and elevated spinal fluid pressure). The underlying cause of this cluster of findings may be initially difficult to determine. Syphilis, cryptococcosis, human immunodeficiency virus infection, or invasion of the meninges by cancer cells may be…

Acute or chronic inflammation of the meninges of the brain.  

Infiltration of the meninges by metastatic tumor cells. It may produce symptoms such as headache, backache, confusion, nerve palsies, or seizures and should be suspected when these symptoms arise in patients with known cancers. The diagnosis is confirmed by lumbar puncture with analysis of the cerebrospinal fluid for tumor cells.  

The membrane connecting the thyroid and cricoid cartilages of the larynx.  

The dense fascia between the pectoralis minor and subclavius muscles.  

Depression occurring at the time of menopause.  

A substance that renders histological specimens transparent.