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1.
Post-Paget telangiectatic osteosarcoma of the skull 总被引:1,自引:0,他引:1
Sarcomatous transformation is the most dreaded complication of Paget’s disease. We report on a case of post-Paget telangiectatic
osteosarcoma of the skull, a variant of osteogenic osteosarcoma, in a 79-year-old woman. We discuss the radiological pattern
in relationship to the differential diagnosis.
Received: 27 July 1998 Revision requested: 24 August 1998, 23 December 1998 Revision received: 25 November 1998, 12 April
1999 Accepted: 13 April 1999 相似文献
2.
Castleman's disease, a lymphoproliferative disease of unknown etiology, rarely causes a neck mass and may mimic granulomatous,
inflammatory and metastatic lymph nodes, or lymphoma with its nonspecific imaging findings. Definitive diagnosis and treatment
is possible with complete surgical resection. Imaging findings of a case with Castleman's disease detected during multinodular
goiter surgery and later verified through excisional biopsy are presented. This report, as far as we know, is the first evaluation
of the disease with sonography, Doppler sonography, CT, MR imaging, and digital subtraction angiography (DSA) findings.
Received: 31 August 1999; Revised: 30 November 1999; Accepted: 23 December 1999 相似文献
3.
Neonatal hemochromatosis is a rare congenital disorder which affects both fetuses and newborns. It is characterized by hepatocellular
failure, often appearing on the first day of life in the form of coagulopathy, hypoalbuminemia, hypoglycemia, and jaundice.
Most of the affected infants die early in life, and definitive diagnosis has often been made only by post-mortem evaluation.
With the help of MRI, plus increasing awareness of the disorder, diagnosis is now often made early, even in utero. Duplex
Doppler sonography does not provide information on siderosis but shows abnormalities in the liver or blood-flow patterns associated
with liver disease.
Received: 24 September 1998; Revised: 23 November 1998; Accepted: 27 January 1999 相似文献
4.
Oncogenic osteomalacia 总被引:3,自引:0,他引:3
The clinical, imaging, metabolic, histologic and biochemical aspects of oncogenic osteomalacia are reviewed. The bone and
soft tissue tumor and tumor-like lesions associated with this paraneoplastic syndrome are discussed. The radiologist’s role
in the diagnosis and evaluation of this entity is presented.
Received: 11 November 1999 Revision requested: 30 December 1999 Revision received: 7 January 2000 Accepted: 10 January 2000 相似文献
5.
Spinal neural foraminal widening is usually caused by benign lesions, most commonly neurofibromas. Rare lesions can also
cause spinal neural foraminal widening. Computed tomography and/or MRI are the modalities of choice for studying the spinal
foraminal widening. The present pictorial review describes six rare lesions, namely a lateral thoracic meningocele, a malignant
fibrous histiocytoma, a tuberculous abscess, an osteoblastoma, a chondrosarcoma and a malignant tumour of the lung which caused
spinal neural foraminal widening.
Received: 23 November 1998; Revised: 4 March 1999; Accepted: 20 April 1999 相似文献
6.
The crowned dens syndrome has been termed as acute neck pain ascribed to CPPD deposits associated with a tomographic appearance
of calcification surrounding the odontoid process. This rare entity resulting in cervical cord compression is generally seen
in older female patients. We present a 26-year-old woman with cervical cord compression due to massive calcification in the
periodontoid area and discuss the X-ray and CT findings of the disease.
Received: 8 July 1999; Revised: 24 September 1999; Accepted: 12 November 1999 相似文献
7.
The case of a 59-year-old man with chronic lateral ankle pain following an inversion injury is presented. MR imaging performed
to evaluate for soft tissue injury revealed an unsuspected fracture of the lateral process of the talus. The patient underwent
surgical exploration of the fracture with debridement of adjacent loose bodies and is currently undergoing aggressive physical
rehabilitation.
Received: 23 November 1998 Revision requested: 18 December 1998 Revision received: 4 January 1999 Accepted: 4 January 1999 相似文献
8.
We report on a 13-year-old boy who was found to have a fibroma of the tendon sheath associated with the patellar tendon and
within Hoffa’s fat pad of the knee. This benign tumor has never been described in this location previously. The MRI characteristics
are correlated with the histologic findings.
Received: 20 November 1998 Revision requested: 17 December 1998 Revision received: 16 February 1999 Accepted: 19 February
1999 相似文献
9.
A 78-year-old woman presented with pain at the left hip. Initial radiographs showed minimal age-related changes. Over the
next 2 years she developed large erosions in the left femoral neck and proceeded to hip replacement. Histological examination
showed bland spindle cells in a loose and hyalinised collagenous stroma considered to represent a desmoplastic fibroblastoma
(collagenous fibroma). This is the first reported case of synovial desmoplastic fibroblastoma.
Received: 23 November 1998 Revision requested: 16 December 1998 Revision received: 10 February 1999 Accepted: 4 March 1999 相似文献
10.
Martinoli C Derchi LE Bertolotto M Gandolfo N Bianchi S Fiallo P Nunzi E 《Skeletal radiology》2000,29(3):142-150
Objective. To analyze peripheral nerves with ultrasonography (US) and magnetic resonance imaging (MR) in leprosy and assess the role
of imaging in leprosy patients.
Design and patients. Fifty-eight nerves with abnormal clinical features or electromyograms were examined in 23 leprosy patients by means of gray-scale
US, Doppler US and MR imaging. Image analysis included: measurement of nerve cross-sectional area; assessment of nerve structure
and MR signal intensities; identification of nerve compression within osteofibrous tunnels; detection of endoneural color
flow signals and Gd-DTPA enhancement. Correlations were made with clinical findings and a control group of 20 subjects. Fourteen
nerves in active reversal reaction were followed up after therapy.
Results. Leprosy nerves were classified into three groups based on imaging appearance: group I consisted of 17 normal-appearing nerves;
group II, of 30 enlarged nerves with fascicular abnormalities; group III, of 11 nerves with absent fascicular structure. Group
II nerves were from patients subjected to reversal reactions; 75% of patients with group III nerves had a history of erythema
nodosum leprosum. Nerve compression in osteofibrous tunnels was identified in 33% of group II and 18% of group III nerves.
Doppler US and MR imaging were 74% and 92% sensitive in identifying active reactions, based on detection of endoneural color
flow signals, long T2 and Gd enhancement. In 64% of cases, follow-up studies showed decreased color flow and Gd uptake after
steroids and decompressive surgery.
Conclusions. US and MR imaging are able to detect nerves abnormalities in leprosy. Active reversal reactions are indicated by endoneural
color flow signals as well as by an increased T2 signal and Gd enhancement. These signs would suggest rapid progression of
nerve damage and a poor prognosis unless antireactional treatment is started.
Received: 23 August 1999 Revision requested: 18 October 1999 Revision received: 16 November 1999 Accepted: 19 November 1999 相似文献
11.
Acute epiglottitis is a rare but life-threatening disease that commonly occurs in children, and also rarely in adults. The
symptoms may be mild and non-specific before a rapid onset of airway obstruction occurs. Early diagnosis is essential, as
delayed treatment is associated with a high rate of complications including death. We present the clinical and radiological
findings of this unusual condition in an adult.
Received: 9 November 1998; Revision received: 27 January 1999, Accepted: 16 February 1999 相似文献
12.
We present five cases of syringomyelia associated with Chiari I or other causes of partial obstructions at the cervicomedullary
junction, with spontaneous disruption of the wall of a cervical syrinx and formation of a communication between the cavity
and the subarachnoid space, shown on axial MRI. MRI can be used to investigate the hydrodynamics, showing the liquid inside
the disrupted syrinx wall and the pathway of drainage. The finding of spontaneous drainage may be important for understanding
the pathogenesis of syringomyelia and may be helpful for choosing a surgical approach.
Received: 1 November 1999 Accepted: 19 November 1999 相似文献
13.
We report two similar, but unrelated, patients with congenital bilateral partial deficiencies of the tibia and fibula associated
with intact feet. In both patients, the tibia and fibula were absent on initial radiographs, while the femur and the tarsal
bones were well developed and there was bilateral teratologic dislocation of the hips. Ultrasound and magnetic resonance imaging
(MRI) studies suggested the presence of cartilaginous remnants of the tibia and fibula. There were multidirectional instabilities
in the knees and ankles. The clinical and radiological features of these cases are distinct from those of congenital longitudinal
deficiency of the tibia, in which the fibula is always preserved, and from longitudinal deficiency of the fibula, in which
the tibia is present and the foot is usually involved. We suggest that the bilateral partial deficiencies of the tibia and
fibula associated with the intact foot and teratologic dislocation of the hips is a single-entity disorder, possibly categorized
as an intercalary transverse deficiency of the lower limb.
Received: 5 October 1999 Revision requested: 10 November 1999 Revision received: 30 November 1999 Accepted: 1 December 1999 相似文献
14.
Hottya GA Péterfy CG Uffmann M Häckl FO LeHir P Rédei J Gindele AU Dion E Genant HK 《European radiology》2000,10(3):467-475
The purpose of this review is to provide illustrative examples of diseases of the foot and ankle when imaged with a low-field
MR imaging system. A retrospective review of 268 foot and ankle examinations, performed in our institution within the past
3 years with a 0.2-T (Artoscan Esaote, Genoa, Italy) dedicated extremity MR system was done. Additionally, illustrative comparison
with conventional radiography and high-field MR imaging is presented in patients in whom these examinations were also performed.
Although motion artifact limited the value of a few studies, in the majority of examinations low-field MR imaging provided
diagnostic image quality for the full spectrum of disorders affecting the foot and ankle and seemed to be a feasible alternative
to high-field MR imaging in establishing an accurate diagnosis.
Received: 23 November 1998; Revision received: 8 February 1999; Accepted: 4 June 1999 相似文献
15.
A persistent external carotid-vertebrobasilar anastomosis, associated with intracranial aneurysms, was identified. The anomalous
vessel passed through the hypoglossal canal, and was possibly a variant of the persistent primitive hypoglossal artery.
Received: 2 November 1999 Accepted: 2 March 2000 相似文献
16.
Petit P Vivarrat-Perrin L Champsaur P Juhan V Chagnaud C Vidal V Gaubert JY Bartoli JM Dessi P Zanaret M Moulin G 《European radiology》2000,10(7):1184-1189
The aim of this study was to describe cross-sectional imaging features of recurrent papilloma of the nasal fossa and paranasal
sinuses and to evaluate the role of MR and CT in the postoperative follow-up of this lesion. Magnetic resonance imaging and
CT of ten patients who presented recurrence of inverted papilloma were reviewed and correlated to initial imaging, endoscopy,
and surgical reports. Imaging patterns of recurrent inverted papilloma are identical to those of initial tumors and recurrence
location is closely related to the site of the former lesion. Magnetic resonance is more efficient than CT for the diagnosis
and evaluation of extensions. Magnetic resonance supplies the deficiencies of endoscopy in case of extensions to the frontal
sinus or the lateral recess of the antrum, especially if mucosal hyperplasia or sinusitis is associated. Magnetic resonance
imaging is the first imaging modality to perform in the follow-up after removal of inverted papilloma.
Received: 28 April 1999; Revised: 18 November 1999; Accepted: 19 November 1999 相似文献
17.
J.-F. Nisolle E. Blouard V. Baudrez Y. Boutsen P. De Cloedt W. Esselinckx 《Skeletal radiology》1999,28(5):283-285
A 44-year-old man presented with lipoma arborescens of the right shoulder, associated with a rotator cuff tear. MRI revealed
villous proliferations with signal intensity of fat on all pulse sequences. At surgery, this bursa was found to contain moderately
yellow cloudy fluid without fat globules. Histological examination of the lesion showed subsynovial accumulation of mature
fat cells.
Received: 13 October 1998 Revision requested: 10 November 1998 Revision received: 22 January 1999 Accepted: 31 January 1999 相似文献
18.
We report a case of a stalked cystic duodenal duplication. The lesion, hyperintense on T2-weighted GRE images, maintained
the signal intensity after oral administration of a negative contrast agent (Lumirem, Guerbet, Aulnay-Sous-Bois, France),
confirming its independence from the duodenal lumen. To our knowledge, this is the first demonstration of duodenal duplication
by means of MR cholangiopancreatography.
Received: 9 August 1999; Revised: 22 November 1999; Accepted: 22 November 1999 相似文献
19.
P. Potepan Roberto Luksch Gabriella Sozzi Adele Testi Alberto Laffranchi Gian Maria Danesini Antonina Parafioriti Roberto Giardini Ivo Spagnoli 《Skeletal radiology》1999,28(7):415-421
We present a case of multifocal osteosarcoma (MFOS) arising 11.5 years after successful treatment of bilateral retinoblastoma.
The clinical, imaging and pathological findings at onset, after therapy, and during follow-up are described. Fluorescent
in situ hybridization did not reveal a deletion of the RB-1 retinoblastoma gene, although the presence of an inactivating
mutation invisible to this method cannot be ruled out. The MFOS may have been a second multifocal tumor associated with the
original retinoblastoma or a post-irradiation sarcoma with extensive metastases.
Received: 20 November 1998 Revision requested: 5 January 1999 Revision received: 8 March 1999 Accepted: 19 March 1999 相似文献
20.
Two cases of uterine endometrial stromal sarcoma whose main mass was located in uterine myometrium are reported. They mimicked
uterine leiomyoma with cystic degeneration or uterine leiomyosarcoma. Endometrial stromal sarcoma should be suggested in the
differential diagnosis of mass lesion in uterine myometrium.
Received: 9 March 1999; Revised: 2 September 1999; Accepted: 25 November 1999 相似文献