It is seen compressing the medulla resulting in significant white matter edema.This is mainly seen in cases of hyperparathyroidism , rheumatoid arthritis or rickets. (metallurgy) A machined cavity in a forging die for production of a specific geometric shape in the workpiece. Basilar impression is an acquired or congenital indentation into the skull of the occipital bone in the area of the craniovertebral junction. Basilar Impression. The first ante-mortem cases in patients were described in Europe in the early 20th century ( 42; 23 ). A developmental deformity of the occipital bone and upper end of the cervical spine, in which the latter appears to have pushed the floor of the occipital bone upward. These small air. It occurs due to softening of the neck bones or flattening of the skull's base. lar | \ ba-z-lr , -s- also b- \ Definition of basilar : of, relating to, or situated at the base Example Sentences Phrases Containing basilar Learn More About basilar Examples of basilar in a Sentence Basilar impression. Historically, basilar impression was defined radiologically by numerous parameters, including the lines defined by Chamberlain (1939), McGregor (1948), and Fischgold and Metzger (1952), and the angle defined by Bull et al. This type of collapse is caused when the small air sacs in your lungs deflate. Bibasilar atelectasis is a condition that happens when you have a partial collapse of your lungs. Basilar impression is a mild form of basilar invagination. Basilar impression occurs when parts of the cervical (neck) vertebrae enter the hole in the skull base (foramen magnum). Basilar Impression is caused by this deformation resulting from softening of the . basilar impression. From: Osteogenesis Imperfecta, 2014 View all Topics basilar: , basilaris ( bas'i-lr, bas-i-l'ris ), [TA] Relating to the base of a pyramidal or broad structure. Basilar Impression. Basilar impression, a skeletal malformation involving the relation between the cervical spine and the base of the skull, was first described as a postmortem anatomic entity by anatomists in 1790. (1955). Basilar definition-lr . basilar invagination: congenital upward displacement of vertebral elements into a normal foramen magnum with normal bone. When a detailed history was obtained and clinical examination was done the patient had multiple bone deformities . The more impressions an ad receives, the more likely it is that a user will click on it. We found 6 dictionaries with English definitions that include the word basilar impression: Click on the first link on a line below to go directly to a page where "basilar impression" is defined. Firstly, to simulate the asymmetry of the hair cell response, . See: Condition Record Chiari malformation type I Hajdu-Cheney syndrome click for more detailed meaning in English, definition, pronunciation and example sentences for basilar impression Definition in the dictionary English. (geology) A form left on a soft soil surface by plant parts; the soil hardens and usually the imprint is a concave feature. basilar (bs lr) also basilary (-lr i) adj. (redirected from basilar impression) Also found in: Dictionary, Thesaurus, Medical, Encyclopedia . the base of the skull. Primary basilar impression (PBI) is a very rare skeletal developmental defect characterized by congenital upward translocation of the upper cervical spine and clivus into the foramen magnum. cranial settling: used instead of basilar impression in patients with rheumatoid arthritis; affects 5-10% 2,3. Basilar invagination is invagination (infolding) of the base of the skull that occurs when the top of the C2 vertebra migrates upward. It can cause narrowing of the foramen magnum (the opening in the skull where the spinal cord passes through to the brain).It also may press on the lower brainstem.. 1. a slight indentation or depression, as one produced in the surface of one organ by pressure exerted by another. Patients with minor symptoms due to basilar invagination can often be treated without surgery. (graphic arts) A print made from an engraved plate. Examples Stem. Each time a website viewer sees an online ad, this is one impression. In many cases, an insidious headache is the only symptom and can be a diagnostic challenge for the neurologist. A press run or printing of a book. The decrease in the volume of the cranium and cranial (towards the skull) displacement of the spine that occur during basilar impression are the cause of the development of hydrocephalus, cerebellar disorders, disorders of the cranial nerves, radicular . Definition Briefly, basilar impression (or basilar invagination) is a deformity of the osseous structures at the base of the skull in the region of the foramen magnum. This may cause compression of the spinal cord and brainstem, creating a variety of neurologic problems, including sudden death. The cranial migration of dens is suggestive of basilar impression. The left lung has two lobes, and the right lung has three lobes. [1535-45; < New Latin basilre = Medieval Latin bassil (e) pelvis + Latin -re, neuter of -ris -ar 1] Impression A user's view of an online advertisement. basilar impression: upward displacement of the dens due to acquired softening of bones at the base of skull. basilar impression meaning and definition: [Medicine]A developmental defo. The acquired form of basilar invagination is termed as basilar invagination is termed as basilar impression. A congenital or aquired, cranio- cervical junction abnormality where the tip of the 2nd cervical ( axis, odontoid process) vertebra is displaced upward and posteriorly (backward) into the intracranial space projecting above the foramen magnum. springer. General (1 matching dictionary) basilar impression: Dictionary/thesaurus [home, info] Business (2 matching dictionaries) In medical terms, bibasilar atelectasis definition refers to a partial or complete collapse of a lung or both lungs. The congenital and acquired deformities of the craniovertebral junction (CVJ), such as basilar invagination, basilar impression, or platybasia, can present in the form of slowly progressive or acute neurologic deterioration. We have two lungs the left and the right both containing lobes. Basilar impression. Basilar as a adjective means Of, relating to, or located at or near the base, especially the base of the skull.. . Basilar invagination is an uncommon condition that occurs when the upper portion of the second vertebra (C2) moves upward. pertaining to or situated at the base, esp. basilar impression 1. platybasia. 2. a negative imprint of an object made in some plastic material that later solidifies. This is similar to Chiari malformation.That, however, is usually present at birth. Match all exact any words . Basilar invagination is the same problem, except that it's caused by softening in the bones at the skull base. 2. basilar invagination. 3. an effect produced upon the mind, body, or senses by some external stimulus or agent. Basilar impression (relative lowering of the cranial base with consequent positioning of the uppermost vertebral structures above the caudal border of the skull) is a rare mechanical deformity of the craniocervical junction that is characterized by either basilar invagination or cranial settling. Define basilar. Chiari malformation is when the brain tissue enters the . PBI can be asymptomatic or associated with severe neurological dysfunction. The events in the history show that operative management of basilar impression and associated abnormalities is justified.
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