Items tagged “stub”

1,108 results found
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Bill's bar

Bill's bar is a landmark that divides the superior compartment of the internal acoustic meatus into an anterior and posterior compartment. Anterior to Bill bar, in the anterior superior quadrant, are the facial nerve (CN VII) and nervus intermedius, and posterior to it in the posterior superior ...
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Tegmentum

The tegmentum (Latin: "hood") is one of the areas of the brainstem. It is a phylogenetically old part of the brainstem and in adults, is the location of the brainstem nuclei.  In the midbrain, it sits between the quadrigeminal plate and cerebral peduncles. In the pons, it is posterior...
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Osteoarthritis of the vertebral column

Osteoarthritis of the vertebral column, also known as spondylosis deformans, is common and usually merely referred to as spinal "degenerative change". Complications such as spinal stenosis are important to recognise.  Radiographic features The hallmark of osteoarthritis in the spine,...
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Logopaenic dementia

Logopaenic dementia is a subtype of primary progressive aphasia (PPA), which itself is a subtype of frontotemporal lobar degeneration (FTLD). 
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Pulmonary mesenchymal cystic hamartoma

Pulmonary mesenchymal cystic hamartomas (PMHCs) are a rare subtype of pulmonary hamartomas. Pathology They usually comprise of multiple bilateral cysts and nodules. The cyst walled are lined with normal respiratory epithelium and the nodules are permeated by scattered airways that were also li...
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Intrapulmonary lymph nodes

Intrapulmonary lymph nodes are a type of intrathoracic lymph nodes. They can be quite common on routine CT examinations of healthy patients. Subtypes perifissural lung nodules 2 Radiographic features CT: HRCT chest range around 6mm in size (usually reported range around 3-8.5 mm) 1 most te...
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Cyamella

A cyamella is a rare sesamoid bone that exists as a normal variant within the popliteus tendon, characteristically located at the lateral aspect of the distal femur in the popliteal groove.  It is seen more commonly in less advanced primates 3, and a high proportion of dogs and cats 4.
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5-F rule (mnemonic)

The 5-F rule refers to risk factors for the development of cholelithiasis in an event of upper abdominal pain: fair: more prevalent in Caucasian population 1 fat: BMI >30 female gender fertile: one or more children forty: age ≥40 cholelithiasis can occur in young patients with a positiv...
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Supraoptic recess

The supraoptic recess is a small angular recess or diverticulum that sits at the junction of the floor and anterior wall of the third ventricle, immediately above the optic chiasm. Related pathology When the third ventricle is expanded due to hydrocephalus (e.g. aqueduct stenosis) this recess,...
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Median aperture (of Magendie)

The median aperture (of Magendie) is one of the foramina in the ventricular system and links the fourth ventricle and the cisterna magna. Along with the lateral apertures (of Luschka) it makes up one of the three ways that CSF can leave the fourth ventricle and enter the subarachnoid space.
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Foramen of Magendie

The foramen of Magendie (also called median aperture) is one of the foramina in the ventricular system and links the fourth ventricle and the quadrigeminal cistern. It is one of the three ways that cerebrospinal fluid (CSF) can leave the fourth ventricle and enter the subarachnoid space.
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Styloid apparatus

The styloid apparatus, found within the parapharyngeal space, refers to the structures derived from the 2nd branchial arch along with associated ligaments and muscles: styloid process of the temporal bone lesser horn of the hyoid bone stylohyoid ligament stylomandibular ligament stylohyoid ...
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Liddle syndrome

Liddle's syndrome is an autosomal dominant condition which inhibits the normal degradation of the ENaC sodium channel, resulting in findings that mimic Conn's syndrome (hyperaldosteronism); hypernatraemia, hypokalaemia and elevated serum bicarbonate. Typically patients are asymptomatic other tha...
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Pepper syndrome

Pepper syndrome is of interest only (the term is not readily used in day-to-day practice), and refers to primary adrenal neuroblastoma with extensive liver metastases 1. In essence, it refers to stage 4S neuroblastoma (see staging of neuroblastoma). 
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Coronal suture

The coronal suture is the cranial suture formed between the two parietal bones and the frontal bone. At the junction of coronal, sagittal and frontal sutures is the anterior fontanelle which is open at birth and usually fuses at around 18-24 months after birth. Fusion of the coronal suture occu...
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Indusium griseum

The indusium griseum is a thin layer of grey matter which covers the superior surface of the corpus callosum, extending from the paraterminal gyrus anteriorly to the dentate gyrus and hippocampus posteriorly via the fyrus fasciolaris. It has four longitudinal bundles (medial and lateral longitud...
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Extreme capsule

The extreme capsule is a series of white matter tracts in the brain that run between the claustrum and insular cortex.
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Forceps major

The forceps major, also known as the posterior forceps, is a fibre bundle which connects the occipital lobes and crosses the midline via the splenium of the corpus callosum. 
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Forceps minor

The forceps minor, also known as the anterior forceps, is a fibre bundle which connects the lateral and medial surfaces of the frontal lobes and crosses the midline via the genu of the corpus callosum.
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Paraphysis elements

The so-called paraphysis elements are embryonic structures which appears like a thin strand between telencephalon and the anterior portions of diencephalon 1. It is believed to the be structure which results in colloid cysts of the third ventricle. 

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