Search results for “also”
513 results found
Article
Suspected physical abuse
Suspected physical abuse (SPA), also known as non-accidental injury (NAI) or inflicted injury, in infants and young children represents both ethical and legal challenges to treating physicians.
Radiologists may be the first clinical staff to suspect non-accidental injuries when confronted with ...
Article
Hitchhiker thumb deformity
Hitchhiker thumb deformity is a musculoskeletal manifestation of rheumatoid arthritis presenting in the thumb, with the combination of:
flexion of the metacarpophalangeal (MCP) joint
hyperextension of the interphalangeal (IP) joint
Terminology
Hitchhiker thumb deformity, also know...
Article
Bright rim sign (DNET)
The bright rim sign, also known as the hyperintense ring sign, is an MRI sign described most frequently in dysembryoplastic neuroepithelial tumors (DNET) but is also seen in some other tumors.
Terminology
Although the sign is most associated with DNETs, and should probably be reserved in case...
Article
Lipohemarthrosis
Lipohemarthrosis results from an intra-articular fracture with escape of fat and blood from the bone marrow into the joint, and is most frequently seen in the knee, associated with a tibial plateau fracture or distal femoral fracture; rarely a patellar fracture. They have also been described in ...
Article
Lemon sign
The lemon sign, noted on antenatal imaging, is one of the many notable fruit-inspired signs. It is a feature when there appears to be an indentation of the frontal bone (depicting that of a lemon). It is classically seen as a sign of a Chiari II malformation and also seen in the majority (90-98%...
Article
Atoll sign (lungs)
The atoll sign or reversed halo sign refers to focal ground-glass opacity with a peripheral ring of consolidation which may be complete or incomplete. The sign was originally described in organizing pneumonia but can also occur in infections, infarction, granulomatous disease, inflammation and t...
Article
Erlenmeyer flask deformity
Erlenmeyer flask deformity (EFD), also known as metaphyseal flaring, refers to a radiographic appearance typically on a femoral radiograph demonstrating relatively reduced constriction of the diaphysis and flaring of the metaphysis as a result of undertubulation.
The name refers to the resembl...
Article
Animal and animal produce inspired signs
Animal and animal produce inspired signs may sound a little silly, but the radiology literature is replete with such signs, some more fanciful than others.
Fish and marine life
cluster of black pearls sign
endosteal scalloping: medullary cavity masses, e.g. multiple myeloma
fish vertebra (al...
Article
Ventricular interdependence
Ventricular interdependence (or ventricular coupling) is a phenomenon whereby the function of one ventricle is altered by changes in the filling of the other ventricle. This leads to a volume increase of one ventricle associated with a decreased volume in the opposite ventricle 1.
This conditio...
Article
Thumb sign (epiglottitis)
The thumb sign in epiglottitis is a manifestation of an edematous and enlarged epiglottis which is seen on lateral soft-tissue radiograph of the neck, and it suggests a diagnosis of acute infectious epiglottitis. This is the radiographic corollary of the omega sign 1-3.
See also
Thumb sign is ...
Article
Pelvic teardrop
The pelvic teardrop, also known as U-figure or Köhler teardrop, is a radiographic feature seen on pelvic x-rays and results from the end-on projection of a bony ridge running along the floor of the acetabular fossa (cotyloid fossa).
This was shown to be the case by demonstrating that sawing aw...
Article
Septal flash
Septal flash, also known as septal beaking, is a sign of interventricular dyssynchrony seen on echocardiography or cinematographic cardiac CT/MRI. It represents an abnormal rapid movement pattern of the interventricular septum during pre-ejection systole (i.e. isovolumic contraction):
septal mo...
Article
Retroaortic anomalous coronary sign (echocardiography)
The retroaortic anomalous coronary (RAC) sign describes the sonographic appearance of an anomalous left coronary artery traveling posteriorly to the aortic root. It is most commonly observed with anomalous origin of the left circumflex artery from the right sinus of Valsalva, but is also describ...
Article
Falciform ligament sign
The falciform ligament sign, also called the Silver sign, is characterized by the falciform ligament being outlined with free abdominal gas in cases of pneumoperitoneum of a large amount.
It is almost never seen in isolation as, if there is enough free gas to outline the falciform ligament, th...
Article
Fishhook ureters
Fishhook ureters, also known as J-shaped ureters or hockey stick ureters describe the appearance of the distal ureter in patients with significant benign prostatic hypertrophy. It has also been used to describe the appearance of a retrocaval ureter in type 1 or low loop variety. As the right ure...
Article
Bird beak sign (esophagus)
The bird's beak sign of the esophagus is used to refer to the tapering of the inferior esophagus in achalasia. The same appearance is also referred to as the rat's tail sign.
The appearance, although classically occurring in primary achalasia, can also occur in pseudoachalasia due to a gastric ...
Article
Accordion sign (colon)
The accordion sign (also known as concertina sign) is seen on CT of the abdomen and refers to the similarity between the thickened edematous wall of pseudomembranous colitis and the folds of an accordion. This appearance is the result of hyperemic enhancing mucosa stretched over markedly thicken...
Article
Cyclops lesion (knee)
The cyclops lesion, also known as localized anterior arthrofibrosis, is a painful anterior knee mass that arises as a complication of anterior cruciate ligament (ACL) reconstruction, although has rarely been reported in patients with ACL injuries that have not been reconstructed.
Epidemiology
...
Article
Echogenic fetal bowel
Echogenic fetal bowel is an observation in antenatal ultrasound imaging, in which fetal bowel appears to be brighter than it is supposed to be. It is a soft marker for trisomy 21 and has several other associations. When observed, it needs to be interpreted in the context of other associated abno...
Article
Charcot triad
Charcot triad is the finding of pyrexia, right upper quadrant pain and jaundice, and is a traditional clinical sign of acute cholangitis.
A meta-analysis of 4288 patients in 16 studies found that the sensitivity of Charcot triad for acute cholangitis was poor (36.3%) with a much better specific...
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