Comparison of calcification of pineal, habenular commissure and choroid plexus on plain films and computed tomography

1979 ◽  
Vol 18 (2) ◽  
pp. 67-72 ◽  
Author(s):  
P. Macpherson ◽  
M. S. Matheson

2017 ◽  
Vol 12 (4) ◽  
pp. 131-136
Author(s):  
V Natraj Prasad ◽  
Ashish Khanal

Background & Objectives: The maxillofacial region, a complex anatomical structure, can be evaluated by conventional (plain) films, Tomography, Multidetector Computed Tomography, Three-Dimensional Computed Tomography, Orthopantomogram and Magnetic Resonance Imaging. The study was conducted with objective of describing various forms of maxillofacial injuries, imaging features of different types of maxillofacial fractures and the advantage of using Three- Dimensional Computed Tomography reconstructed image. Materials & Methods: A hospital based cross-sectional study was conducted among 50 patients during April 2014 to September 2016 using Toshiba Aquilion Prime 160 slice Multi Detector Computed Tomography scanner.Results: The maxillofacial fractures were significantly higher in male population (88%) than female population (12 %). Road traffic accidents were the most common cause of injury others being physical assault and fall from height. It was most common in 31-40 years (26%) and 21-30 (24%) years age group. Maxillary sinus was the commonest fracture (36%) followed by nasal bone and zygomatic bone (30%), mandible and orbital bones (28%). Soft tissue swelling was the commonest associated finding. Three dimensional images (3 D) compared to the axial scans missed some fractures. However, the extension of the complex fracture lines and degree of displacement were more accurately assessed. Complex fractures found were Le fort (6%) and naso-orbito-ethmoid (4%) fractures.Conclusion: The proper evaluation of complex anatomy of the facial bones requires Multidetector Computed Tomography which offers excellent spatial resolution enabling multiplanar reformations and three dimensional reconstructions for enhanced diagnostic accuracy and surgical planning.



1987 ◽  
Vol 27 (5) ◽  
pp. 466-468 ◽  
Author(s):  
V. Wagle ◽  
D. Melanson ◽  
R. Ethier ◽  
G. Bertrand ◽  
J.G. Villemure


2008 ◽  
Vol 108 (2) ◽  
pp. 365-369 ◽  
Author(s):  
Kosuke Miyahara ◽  
Kazuhiko Fujitsu ◽  
Saburo Yagishita ◽  
Yasunori Takemoto ◽  
Teruo Ichikawa ◽  
...  

✓The authors report a case of inflammatory pseudotumor that developed in the choroid plexus of the lateral ventricle. The patient was a 73-year-old man who had undergone surgery for rectal cancer at another hospital 5 years earlier. He was referred to the authors' department, with his chief symptoms consisting of disorientation, right hemiparesis, and gait disorder that had gradually developed during the preceding month. On computed tomography and magnetic resonance imaging, a well-demarcated and homogeneously contrasted tumorous lesion was noted in the region from the trigone to the medial wall of the inferior horn of the left lateral ventricle. Expansion of the inferior horn was also evident. Intraoperative findings showed that the tumor originated from the choroid plexus of the lateral ventricle, and the histopathological diagnosis was inflammatory pseudotumor. There are only 4 previously reported cases of inflammatory pseudotumor that developed in the choroid plexus; the authors review the literature and discuss the clinicopathological characteristics of the condition.



2008 ◽  
Vol 41 (2) ◽  
pp. 81-86 ◽  
Author(s):  
Özgür Öztekin ◽  
Mehmet Argin ◽  
Aysenur Oktay ◽  
Remide Arkun

OBJECTIVE: Intraosseous lipomas may be less rare lesions than previously suggested in the literature. They have frequently been misdiagnosed as other benign bone lesions. A combination of computed tomography, magnetic resonance imaging and radiography is essential for decreasing misdiagnosis rates. MATERIALS AND METHODS: This retrospective study presents ten cases of intraosseous lipoma. The patients' ages ranged from 25 to 80 years, and six of them were female. Six patients presented with bone pain, whereas four patients were asymptomatic with incidentally discovered lesions. The involved bones were: femur (four patients), tibia (two patients), calcaneus (one patient), sacrum (one patient), iliac bone (one patient), navicular bone (one patient). All of the patients were assessed by means of conventional radiography, computed tomography and magnetic resonance imaging of the affected region. RESULTS: In all of the cases, plain films revealed well-defined lytic lesions. Both computed tomography and magnetic resonance imaging were quite useful in demonstrating fat within the femur. The histologic pattern of all tumors was that of mature adipose tissue. CONCLUSION: Intraosseous lipoma is a well-defined entity that may develop with varying presentations. Plain radiographs alone cannot establish the diagnosis of this lesion. However, both computed tomography and magnetic resonance imaging are quite useful methods in these cases.



1976 ◽  
Vol 45 (2) ◽  
pp. 218-222 ◽  
Author(s):  
Javad Towfighi ◽  
Larissa T. Bilaniuk ◽  
Robert A. Zimmerman ◽  
Thomas W. Langfitt ◽  
Nicholas K. Gonatas

✓ The authors present a case in which bilateral posttraumatic hemorrhages in choroid plexus hemangiomas were demonstrated by computed tomography and histopathological study.



Neurosurgery ◽  
2011 ◽  
Vol 68 (3) ◽  
pp. 810-819 ◽  
Author(s):  
Robert F Heary ◽  
Arvin Kheterpal ◽  
Antonios Mammis ◽  
Sanjeev Kumar

Abstract BACKGROUND: Reconstruction of the thoracolumbar spine after corpectomy is a challenge for fractures, infections, and tumors. OBJECTIVE: To analyze fusion rates, clinical outcomes, and the percent of vertebral body coverage achieved by using stackable carbon fiber–reinforced polyetheretherketone cages in thoracolumbar corpectomies, and to measure the actual size of the cages and compare this measurement with the size of the vertebra(e) replaced by the cage. METHODS: A retrospective study of 40 patients who underwent thoracolumbar corpectomies was performed. Preoperative imaging included plain films, computed tomography scans, and magnetic resonance imaging. Postoperatively, plain films and computed tomography scans were obtained, and the width of decompression and cross-sectional area of the cage were measured. The ratio of the area of the cage to the calculated area of the replaced vertebral body was used to determine the percent of vertebral body coverage. RESULTS: The mean follow-up period was 43 months. Successful fusion was observed in 39 patients. One patient experienced cage subsidence with kyphosis. One additional patient incurred a neurological complication that was corrected without long-term consequence. The mean correction of sagittal alignment was 10°, and the mean width of bony decompression was 20 mm. The mean ratio of the area of the carbon fiber cage to the area of the resected vertebral body was 60%. CONCLUSION: Stackable carbon fiber cages are effective devices for achieving thoracolumbar fusions. No failures of the cages occurred over long-term follow-up. Excellent clinical and radiographic results were achieved by covering a mean of 60% of the vertebral body with the cage.



1997 ◽  
Vol 18 (4) ◽  
pp. 258-262 ◽  
Author(s):  
P.Bradley Brechtelsbauer ◽  
Susan L. Garetz ◽  
Stephen S. Gebarski ◽  
Carol R. Bradford


Radiology ◽  
1980 ◽  
Vol 135 (2) ◽  
pp. 369-372 ◽  
Author(s):  
M T Modic ◽  
M A Weinstein ◽  
A D Rothner ◽  
G Erenberg ◽  
P M Duchesneau ◽  
...  


1982 ◽  
Vol 17 (4) ◽  
pp. S6
Author(s):  
Joseph P. Alenghat ◽  
Eugene E. Duda


1987 ◽  
Vol 11 (1) ◽  
pp. 57-60 ◽  
Author(s):  
Tarvinder Bir Singh Buxi ◽  
Rakesh Kumar Mathur ◽  
Shyam Sunder Doda


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