Items tagged “cases2”
10 results found
Article
Solid periosteal reaction
Solid periosteal pattern is thought to evolve from single layer and multilayered periosteal reactions, forming a solid layer of mature new bone adjacent to the cortex. It denotes a longstanding pathological process.
Differential diagnosis
osteoid osteoma
osteomyelitis
osteosarcoma
chondrosa...
Article
String sign (bones)
The string sign of parosteal osteosarcoma refers to the plain radiographic/CT appearance of a radiolucent cleavage plane between portions of the tumor and cortex of the affected bone. The tumor stalk becomes more broad-based with time, obliterating the string sign in later stages.
The string si...
Article
Duodenal filling defects
Duodenal filling defects may be caused by a wide variety of duodenal pathology which may be divided by their location and pathological process.
Extrinsic
gallbladder impression
common bile duct impression
gas-filled diverticulum
Intrinsic
Note: please refer to duodenal mucosal nodular fill...
Article
Pulmonary blastomycosis
Pulmonary blastomycosis refers to respiratory infection with the organism Blastomyces dermatitidis. It is a pyogranulomatous fungal infection and the respiratory system is the commonest site of infection with this organism. The disease is endemic to North America.
Clinical presentation
There c...
Article
FATCO syndrome
FATCO syndrome consists:
FA: fibular aplasia
TC: tibial campomelia
O: oligosyndactyly
It is a syndrome of unknown genetic basis and inheritance with variable expressivity and penetrance 1,2.
Radiographic features
Associated anomalies in FATCO syndrome include 3:
anterolateral bowing of th...
Article
Pharyngocele
A pharyngocele, also known as a lateral pharyngeal diverticulum, refers to a lateral pharyngeal wall herniation in the piriform recess or vallecula 1,2.
Epidemiology
Pharyngoceles are rare and more often unilateral than bilateral 2-4. It is commonly associated with occupational exposure to inc...
Article
Soft tissue chondroma
Soft tissue chondromas or extraskeletal chondromas are benign soft tissue tumors of hyaline or myxoid cartilage originating in extraosseous and extrasynovial locations commonly found in the hands and feet.
Epidemiology
Soft tissue chondromas are rare. They are most commonly seen in middle-aged...
Article
Macrodontia
Macrodontia, also known as megadontia or megalodontia, is a rare congenital abnormal enlargement of the teeth that may affect all the dentition or more rarely, only a single tooth.
Epidemiology
Macrodontia is very rare. In a review of the panoramic dental radiographs of 1200 patients in Turke...
Article
Bile duct duplication
Bile duct duplication, also known as common bile duct duplication, (although in some cases this latter terminology would be erroneous), is a rare congenital anomaly of the biliary system. A double bile duct is considered normal during early human development, but by birth, we expect to see the c...
Article
Flat tyre sign (globe rupture)
The flat tyre sign, also known as the mushroom sign, is one of the most specific signs of ruptured eye globe, due to the similarity between the abnormal contour of injured globe and the appearance of a flat tyre 1. It is classically described on CT but may be seen on ultrasound or MRI 2.
The mo...
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