Articles
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1,951 results found
Article
Skull landmarks
Skull landmarks of anatomic importance exist, located where there is a palpable bony protuberance or where sutures join:
nasion
glabella
bregma
vertex
lambda
inion
pterion
asterion
basion
opisthion
obelion
They are surgical landmarks and craniometric points, used for radiological or ...
Article
Cebocephaly
Cebocephaly refers to a type of rare midline craniofacial anomaly where there is a single nostril (which usually ends blindly 6-7) with proboscis-like nose 8 and hypotelorism.
Pathology
Associations
holoprosencephaly: particularly alobar holoprosencephaly
trisomy 13
See also
ethmocephaly
...
Article
Acrocephalopolysyndactyly
Acrocephalopolysyndactyly (ACPS) syndrome is comprised of a rare group of disorders collectively characterized by:
calvarial anomalies: e.g. craniosynostoses
digital anomalies: syndactyly and polydactyly
While there can be some overlap in features, they can be primarily classified into the fo...
Article
Maxillary line
The maxillary line is a mucosal projection along the lateral nasal wall corresponding to lacrimomaxillary suture externally. The midportion of the line is called "M point". During endoscopic sinus and orbital procedures the maxillary line and M-point are very important and useful landmarks in pa...
Article
Posterior lacrimal crest
The posterior lacrimal crest is a bony projection on the lacrimal bone which creates the medial margin of the lacrimal sac fossa.
See also
anterior lacrimal crest
Article
Norrie disease
Norrie disease is a rare X-linked inherited cause of congenital bilateral blindness. It can present with a retinal mass (pseudoglioma) and cataracts. It is associated with developmental delay and hearing loss.
Article
Midline nasal region lesions
A variety of congenital midface anomalies occur in children. Although rare, these disorders are clinically important because of their potential for connection to the central nervous system. Lesions presenting as a midline nasal mass include:
nasal glioma
nasal encephalocele
nasal dermoid cyst...
Article
Binocular distance
The binocular distance (BOD) is a measurement between the two lateral (outer) canthi of each eye. It is sometimes used as a accessory fetal biometric parameter where it is often documented on both 2nd trimester anatomy scans on axial brain scans. The largest diameter of the orbit should be used ...
Article
Middle ear granulation tissue
Development of granulation tissue in the middle ear cavity is a generalized response to injury/inflammation, chronic otomastoiditis. It can either be typical or go down the pathway of becoming a cholesterol granuloma.
Radiographic features
Typical granulation tissue is common, more so than cho...
Article
Ducts of the salivary glands
The ducts of the salivary glands allow the passage of salivary juice from the glands to the oral cavity:
parotid duct (Stenson duct): connects the parotid gland to the buccal mucosa, adjacent to maxillary second molar
submandibular duct (Wharton duct): connects the submandibular gland to the f...
Article
Salivary gland tumors showing uptake on Tc99
Only a minority of salivary gland tumor types show uptake on 99Tc scintigraphy
They include
Warthin tumor
oncocytoma of salivary glands
hemangioendothelioma of salivary glands 1
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