Cavernous hemangioma
Cavernous hemangioma: A type of hemangioma composed of blood-filled ‘lakes’ and channels. A cavernous henangioma is raised and red or purplish. Small cavernous hemangiomas on the surface of the body may be removed or treated by electrocoagulation. Surgery is sometimes needed.
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- Cavernous sinus
Cavernous sinus: A large channel of venous blood creating a “sinus” cavity bordered by the sphenoid bone and the temporal bone of the skull. The cavernous sinus is an important structure because of its location and its contents which include the third cranial (oculomotor) nerve, the fourth cranial (trochlear) nerve, parts 1 (the ophthalmic nerve) […]
- Cavernous sinus syndrome
Cavernous sinus syndrome: A condition characterized by swelling of the eyelids and the conjunctivae of the eyes, as well as paralysis of the cranial nerves that course through the cavernous sinus. It is caused by a cavernous sinus thrombosis.
- Cavernous sinus thrombosis
Cavernous sinus thrombosis: A blood clot within the cavernous sinus. A thrombosis in this key crossroads causes cavernous sinus syndrome.
- Cavities
Holes or structural damage in the two outer layers of a tooth called the enamel and the dentin. The enamel is the outermost white hard surface and the dentin is the yellow layer just beneath enamel. Both layers serve to protect the inner living tooth tissue called the pulp, where blood vessels and nerves reside. […]
- Cavity, abdominal
Cavity, abdominal: The cavity within the abdomen, the space between the abdominal wall and the spine. The abdominal cavity is hardly an empty space. It contains a number of crucial organs including the lower part of the esophagus, the stomach, small intestine, colon, rectum, liver, gallbladder, pancreas, spleen, kidneys, and bladder.