Orthopantomography | Radiology Reference Article | Radiopaedia.org

Orthopantomography | Radiology Reference Article | Radiopaedia.org

The orthopantomogram (also known as an orthopantomograph, pantomogram, OPG or OPT) is a panoramic single image radiograph of the mandible, maxilla ...

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Malleus | Radiology Reference Article | Radiopaedia.org

The malleus (plural: mallei) is the most lateral middle ear ossicle, located between the tympanic membrane and the incus. Gross anatomy The malleus has a ...

Ranula | Radiology Reference Article | Radiopaedia.org

simple ranula: confined to the sublingual space · plunging ranula (also known as diving ranula or cervical ranula): extends into the submandibular space. as a ...

Tongue | Radiology Reference Article | Radiopaedia.org

Gross anatomy The tongue has a tip, dorsum, inferior surface and root. The ton... ... tympanic part · tympanosquamous fissure ... inferior median clival canal.

Polymyositis | Radiology Reference Article | Radiopaedia.org

Polymyositis is a rare autoimmune, at times considered paraneoplastic, inflammatory condition characterized ... reversible after discontinuation of the medication.

Scapula | Radiology Reference Article | Radiopaedia.org

The scapula (plural: scapulae) is a roughly triangular shaped bone of the pectoral girdle with several articulations connecting to the humerus and clavicle.

Grids | Radiology Reference Article | Radiopaedia.org

... patient and the x-ray film to reduce the scattered radiation reaching the detector (produced mainly ... They are made of parallel strips of high attenuating materia.

Thorax | Radiology Reference Article | Radiopaedia.org

The thorax (plural: thoraces) also known as the chest, refers to that anatomical region of the body ... muscles of the thorax ... left anterior descending artery (LAD) .

Cataract | Radiology Reference Article | Radiopaedia.org

Ocular ultrasound is performed when there is suspicion of posterior globe pathology but fundoscopic assessment of the back of the eye is obscured by the ...

T1 vertebra | Radiology Reference Article | Radiopaedia.org

T1 is an atypical thoracic vertebra. In contrast to typical thoracic vertebrae, it contains a complete facet for the 1st rib and a demifacet for the 2nd rib. It contains  ...

Ankle (AP view) | Radiology Reference Article | Radiopaedia.org

The ankle AP view is part of a three view series, and visualizes the distal tibia, distal fibula, proximal talus and proximal fifth metatarsal. Indications The true ...

Nasal concha | Radiology Reference Article | Radiopaedia.org

The nasal conchae or turbinates are long, narrow curled shelves of bone that protrude into the nasal cavity. The superior, middle and inferior conchae divide the ...

Synovial joints | Radiology Reference Article | Radiopaedia.org

Features of all synovial joints. articular capsule with synovial membrane; synovial cavity containing synovial fluid; hyaline articular cartilage ...

Myocardial infarction | Radiology Reference Article | Radiopaedia.org

Myocardial infarction (MI), colloquially known as a heart attack, an acute coronary ... in differentiating infarction (subendocardial or transmural) from non-infarcted ...

Chest radiograph | Radiology Reference Article | Radiopaedia.org

Lateral projection · the lateral view of the chest is performed erect left lateral and labeled with the side closest to the cassette · it allows for localization of suspected ...

Groin pain | Radiology Reference Article | Radiopaedia.org

Groin pain is a symptom manifesting in a wide spectrum of clinical disorders and diseases in athletes and non-athletes. The Doha agreement in 2014 identified ...

Esophageal dysmotility | Radiology Reference Article | Radiopaedia ...

Epidemiology. The incidence of motility disorders involving the esophagus is poorly defined. Achalasia (an uncommon cause of esophageal dysmotility) is said to ...

Quadrigeminal plate | Radiology Reference Article | Radiopaedia.org

Derives from the Latin word "tectum" meaning "roof". Vascularization. Vascularization is provided by the collicular (or quadrigeminal) artery. It is a branch of the P1 ...

Obturator hernia | Radiology Reference Article | Radiopaedia.org

Obturator hernias (alternative plural: herniae) are characterised by bowel herniating between the obturator and the pectineus muscles. They are a rare type of ...

Inferior mediastinum | Radiology Reference Article | Radiopaedia.org

There are no physical structures that divide the superior and inferior mediastina therefore pathological processes can freely involve both spaces. The inferior ...

Axial skeleton | Radiology Reference Article | Radiopaedia.org

The axial skeleton is the central portion of the bony skeleton comprising the head , neck and trunk (80 bones in total). It has many functions including housing ...

Spatial resolution (MRI) | Radiology Reference Article | Radiopaedia ...

Matrix size. The matrix size is the number of frequency encoding steps, in one direction; and the number of phase encoding ...

Cranial nerves | Radiology Reference Article | Radiopaedia.org

Pons. The middle four cranial nerves originate from the pons: trigeminal nerve ( CN V) · abducens nerve (CN VI) · facial nerve ...

Brain abscess | Radiology Reference Article | Radiopaedia.org

CT · outer hypodense and inner hyperdense rim (double rim sign) in most cases · ring of iso- or hyperdense tissue, typically of uniform thickness · central low ...

Acoustic shadowing | Radiology Reference Article | Radiopaedia.org

The phenomenon of acoustic shadowing (sometimes, somewhat tautologically, called posterior acoustic shadowing) on an ultrasound image is characterized by  ...

Pharyngeal plexus | Radiology Reference Article | Radiopaedia.org

The pharyngeal plexus lies on the posterolateral wall of the pharynx, mainly over the middle pharyngeal constrictor and is the main motor and sensory nerve ...

Hepatic abscess | Radiology Reference Article | Radiopaedia.org

gram-negative aerobic and anaerobic organisms. Escherichia coli; Klebsiella pneumoniae. the hypervirulent Asian strain has a particular predilection 24.

Basal ganglia | Radiology Reference Article | Radiopaedia.org

The basal ganglia are a group of grey matter nuclei in the deep aspects of the brain that is interconnected with the cerebral cortex, thalami and brainstem.

Junctional zone | Radiology Reference Article | Radiopaedia.org

Some research also emphasizes the use of the junctional zone as a predictor for implantation failure after in vitro fertilisation 2. References.

Vertebra plana | Radiology Reference Article | Radiopaedia.org

Vertebra plana (plural: vertebrae planae), also known as the pancake, silver dollar or ... temporal bone fractures transsphenoidal basilar skull fracture.

Beam focusing | Radiology Reference Article | Radiopaedia.org

Before the focal point is the near field or Fresnel zone, where beams converge. ... element with the transmitted ultrasound beam focusing to a fixed focal point.

Splenic volvulus | Radiology Reference Article | Radiopaedia.org

CT · ectopically located or malpositioned spleen · splenomegaly, important sign though it is nonspecific · splenic vascular pedicle demonstrates a whirlpool ...

Renal infarction | Radiology Reference Article | Radiopaedia.org

Renal infarcts are most easily identified on post contrast images, preferably in the cortical/arterial phase. One or more focal, wedge-shaped parenchymal defects ...

Wrist ligaments | Radiology Reference Article | Radiopaedia.org

Gross anatomy · intrinsic ligaments (only attach to carpal bones). proximal interosseous. scapholunate ligament · triangular fibrocartilage complex · extrinsic  ...

Skull landmarks | Radiology Reference Article | Radiopaedia.org

Skull landmarks of anatomic importance exist, located where there is a palpable bony protuberance or where sutures join: nasion glabella bregma vertex ...

True vocal cords | Radiology Reference Article | Radiopaedia.org

The true vocal cords are the thickened, free edge of the cricovocal membrane, the cricovocal ligament, lined by mucous membrane 1. Together they form part of  ...

Triceps brachii muscle | Radiology Reference Article | Radiopaedia ...

The triceps brachii muscle, often referred to simply as the triceps, is a three- headed muscle in the posterior compartment of the arm. Summary origin long head: ...

Skull (Towne view) | Radiology Reference Article | Radiopaedia.org

The Towne view is an angled anteroposterior radiograph of the skull and visualises the petrous part of the pyramids, the dorsum sellae and the posterior clinoid ...

Floating balls sign | Radiology Reference Article | Radiopaedia.org

Terminology. Alternative names include the meatballs 3 or truffle sign 4. When a single large ball is floating at a fat-fluid interface, the name Pokemon (Poké) ball  ...

Great cardiac vein | Radiology Reference Article | Radiopaedia.org

It ascends in the anterior interventricular groove with the left anterior descending artery. At the coronary sulcus it turns left, to runs alongside the circumflex artery in  ...

Small bowel feces sign | Radiology Reference Article | Radiopaedia ...

The small bowel feces sign can be observed on abdominal CT scans. The sign has been described as a finding specific for small bowel obstruction or another ...

Meconium plug syndrome | Radiology Reference Article ...

Meconium plug syndrome refers to a functional colonic obstruction in a ... Contrast enema may demonstrate a small caliber to the left colon with multiple filling ...

Deauville five-point scale | Radiology Reference Article ...

stable disease (SD), also called no metabolic response: a Deauville score of 4 or 5 without significant change in FDG uptake from baseline. progressive disease (  ...

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