popliteal cyst |
A synovial cyst in the popliteal space arising from the semimembranous bursa or the knee joint.
(12 Dec 1998) |
myxoid cyst |
1. A knot or knotlike mass.
2. <anatomy> A general term for a group of nerve cell bodies located outside the central nervous system, occasionally applied to certain nuclear groups within the brain or spinal cord, for example basal ganglia.
3. <oncology, tumour> A benign cystic tumour occurring on a aponeurosis or tendon, as in the wrist or dorsum of the foot, it consists of a thin fibrous capsule enclosing a clear mucinous fluid.
(18 Nov 1997) |
posttraumatic leptomeningeal cyst |
A persistent cystic accumulation of cerebrospinal fluid with progressive loss of bone and dura, occurring at the site of a previous fracture.
(05 Mar 2000) |
haemorrhagic cyst |
A cyst containing blood or resulting from the encapsulation of a haematoma.
Synonym: blood cyst, haematocele, haematocyst, sanguineous cyst.
(05 Mar 2000) |
cyst |
<anatomy> Any closed cavity or sac that is lined by epithelium often contains liquid or semi-solid material.
Origin: Gr. Kystis = sac, bladder
(09 Oct 1997) |
cyst, baker's |
A swelling in the space behind the knee (the popliteal space) composed of a membrane-lined sac filled with synovial fluid that has escaped from the joint. Named after the British surgeon William Morrant Baker (1839-1896). Also called a synovial cyst of the popliteal space.
(12 Dec 1998) |
cyst, meibomian |
Also called a chalazian or a tarsal cyst, an inflammation of the oil gland of the eyelid.
(12 Dec 1998) |
cyst, pilonidal |
A special kind of abscess that occurs in the cleft between the buttocks. Forms frequently in adolescence after long trips that involve sitting.
(12 Dec 1998) |
cyst, sebaceous |
A sebaceous cyst is a rounded swollen area of the skin formed by an abnormal sac of retained excretion (sebum) from the sebaceous follicles.
(12 Dec 1998) |
cyst, synovial, of the popliteal space |
A swelling in the space behind the knee (the popliteal space). The swelling is composed of a membrane-lined sac filled with synovial fluid that has escaped from the joint. Commonly called Baker's cyst.
(12 Dec 1998) |
cyst, tarsal |
Also called a chalazian or a Meibomian cyst, an inflammation of the oil gland of the eyelid.
(12 Dec 1998) |
cyst thyroglossal |
A thyroglossal cyst is a fluid-filled sac present at birth and located in the midline of the neck. A thyroglossal cyst is a result of incomplete closure of a segent of a tube-like structure (the thyroglossal duct) that is present, and normally closes, as the embryo develops. A thyroglossal cyst is also called a thyrolingual cyst.
(12 Dec 1998) |
cyst, thyrolingual |
A thyrolingual cyst is a fluid-filled sac that is present at birth and located in the midline of the neck. A thyrolingual cyst is a result of incomplete closure of a segent of a tube-like structure (the thyrolingual duct) that is present, and normally closes, as the embryo develops. A thyrolingual cyst is also called a thyroglossal cyst.
(12 Dec 1998) |
primordial cyst |
A cyst which develops in place of a tooth through cystic degeneration of the enamel organ prior to formation of calcified odontogenic tissue.
(05 Mar 2000) |
sanguineous cyst |
A cyst containing blood or resulting from the encapsulation of a haematoma.
Synonym: blood cyst, haematocele, haematocyst, sanguineous cyst.
(05 Mar 2000) |