Addison's disease (the common name for hypoadrenocorticism) is caused by a decreased production of two hormones from the adrenal gland. These hormones are cortisol, a stress hormone, and aldosterone, a mineralocorticoid hormone that regulates the body's water balance through its effects on sodium and potassium.
Antibodies are specialized proteins, also called immunoglobulins that are primarily found in the bloodstream. They are produced by specialized white blood cells called plasma cells, a form of lymphocyte.
Bone marrow is the soft material found in the central core of many bones. Bone marrow is vitally important for the production of blood cells, specifically red blood cells, white blood cells, and platelets. Although many bones contain marrow, samples are collected from three main sites in cats and dogs: hip bone, top of thigh bone, or the forearm below the shoulder.
Cerebrospinal fluid (or CSF) is formed within the brain, primarily at specialized sites called the choroid plexuses. CSF is found within the brain and in the space that surrounds both the brain and the spinal cord (this space is called the subarachnoid space).
Cushing's disease is a condition caused by an increased production of the stress hormone cortisol by the adrenal glands. There are various reasons for an increase in cortisol production. The clinical signs of Cushing's disease are similar, regardless of the underlying cause of disease. However, it is important to try to identify the type of Cushing's disease as the treatment and prognosis (outcome) differ slightly depending upon the form of the disease.
Cytology is the microscopic examination of cells that have been collected from the body. Cytology is most often used to diagnose the nature of lumps and bumps found on the surface of the body. However, cytology can also be used to evaluate internal organs, body fluids, effusions, and surfaces of the body. Different techniques are employed to collect cells depending on the type of sample needed. The next diagnostic step after cytology is histology.