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41.
Desmoplastic fibroma of bone is an exceedingly rare tumor that was first described by Jaffe in 1958 [1]. It has a high incidence of local recurrence after surgical resection. It is usually seen in young patients and involves mandible and long bones. It has histological resemblance to the desmoid tumor of the abdominal wall. We report a surgically proven case of desmoplastic fibroma of bone with local aggressiveness and recurrence during follow-up. The radiograph, CT imaging features, radiological and pathological differential diagnosis of the case are described, and literature is briefly reviewed. 相似文献
42.
Vascular tumors are rarely encountered in the paranasal sinuses. When they do arise there, they can be life-threatening because of the risk of bleeding. Embolization alone and in combination with surgical resection has been the mainstay of treatment. We report the case of a prepubertal girl who experienced two recurrences of arteriovenous malformation, one in the maxillary sinus and the other in the mandible. To our knowledge, this is the first report in the literature of recurrences arising in these two locations. 相似文献
43.
Yener GG Guiochon-Mantel A Obuz F Baklan B Oztürk V Kovanlikaya I Cakmur R Genç A 《Journal of neurology》2001,248(3):193-196
Hereditary motor and sensory neuropathy (HMSN) is a heterogeneous group of peripheral neuropathies which are diagnosed on
the basis of clinical, electrophysiological and neuropathological findings. Among the hypertrophic demyelinating neuropathies,
HMSN III is the most severe. It is often associated with de novo mutations in the genes encoding for peripheral myelin proteins.
While peripheral nerve hypertrophy is an expected finding in HMSN III, cranial nerve hypertrophy is exceptional. Here we describe
a mutation in the PMP22 gene in a 19-year-old man with infantile onset of sensory motor polyneuropathy without family history and multiple cranial
nerve hypertrophy shown by cranial magnetic resonance imaging.
Received: 3 May 2000, Received in revised form: 29 August 2000, Accepted: 7 September 2000 相似文献
44.
45.
Background Context
L5-S1 transforaminal percutaneous endoscopic lumbar discectomy (PELD) is a demanding procedure because of structures such as iliac crest, L5 transverse process, hypertrophic L5-S1 facet joint, and sacral ala. There has been no definite preoperative evaluation method to evaluate the surgical validity of L5-S1 transforaminal PELD.Purpose
The authors report a new preoperative trajectory evaluation method for L5-S1 transforaminal PELD using magnetic resonance imaging (MRI) or computed tomography (CT) examinations.Study Design/Setting
This is a technical report study.Patient Sample
Patients who were diagnosed L5-S1 soft disc herniation were included in the present study.Outcome Measures
Success rate of transforaminal PELD according to height of iliac crest was measured.Methods
Twelve patients who were diagnosed L5-S1 disc herniation were preoperatively evaluated with this new method. A skin marker is attached to patient's back as a tentative skin entry point, which was determined by usual preoperative MRI or CT. A new tilted axial and coronal MRI or CT scan is performed according to axis of L5-S1 transforaminal working channel. The images show good relationship between working channel and iliac crest.Results
Six patients underwent a transforaminal PELD, and the results were successful. The other six patients were considered to be “unsuitable” for transforaminal PELD because of the probable blockade by iliac crest.Conclusions
The tilted MRI or CT provides precise evaluation for L5-S1 transforaminal PELD trajectory and may achieve good outcome. 相似文献46.
Abdullah Merter Kerem Başarır Yusuf Yıldız Yener Sağlık 《Acta orthopaedica et traumatologica turcica》2018,52(3):236-239
Malignant triton tumor (MTT) is a rare variant of malignant peripheral nerve sheath tumor (MPNST) made up of both malignant schwannoma cells and malignant rhabdomyoblasts.A 26-years-old male patient was admitted with an asymptomatic gluteal mass. Magnetic resonance imaging showed heterogeneous soft tissue mass and he underwent open biopsy. Malignant peripheral nerve sheath tumor was diagnosed. He was given adjuvant chemotherapy following the removal of the tumor with hip disarticulation. The tumor was diagnosed as “malignant triton tumor” based on pathological examination including immunohistochemical studies. There were no signs of metastasis but recurrence was observed at 9 months follow up.MTT is usually associated with Neurofibromatosis 1 and located in head, neck region. In this case sporadic involvement of gluteal region and aggressive behavior of the lesion despite radical surgery was demonstrated. 相似文献
47.
Cuneyd Gunay Hakan Atalar Yusuf Yildiz Yener Saglik 《Archives of orthopaedic and trauma surgery》2010,130(12):1459-1465
Introduction
Osteochondromas are the most common benign tumour of the bone. They occur in two forms as solitary and hereditary multiple form. Osteochondromas are generally located on the metaphysis of the long bones. From 1 to 4% of osteochondromas occur in the spine. Spinal osteochondromas can cause cord and root compression and also be asymptomatic. In the diagnosis of osteochondromas, radiological methods are very important. 相似文献48.
Xanthogranulomatous salpingitis (XGS) is a rare form of chronic inflammation of the fallopian tubes. A 41-year old woman with a history of secondary infertility for 2 years is presented. The patient underwent bilateral salpingooopherectomy with presumptive diagnosis of adnexal mass with cystic component. Intraoperative pathology consultation was done. The diagnosis of bilateral XGS associated with chronic active follicular salpingitis was made. XGS is reported to be caused by an unsuccesfully treated pelvic inflammatory disease. Its association with chronic active follicular salpingitis has not been previously reported. Chronic active follicular salpingitis with xanthogranulomatous inflammation might give the impression of a cystic adnexal mass with septations on preoperative pelvic computed tomography. Frozen sections are necessary to rule out malignancy as done in our case. 相似文献
49.
Yener Demirtas M.D. Mehmet Cifci M.D. Osman Kelahmetoglu M.D. Ahmet Demir M.D. Murat Danaci M.D. 《Microsurgery》2009,29(7):536-540
Three‐dimensional multislice spiral computed tomographic angiography (3D‐MSCTA) is a minimally invasive method of vascular mapping. The aim of this study was to evaluate the clinical usefulness of this imaging technique in delineating the recipient vessels for safer free tissue transfer to complicated regions. 3D‐MSCTA was performed preoperatively in 26 patients scheduled for free tissue transfer, in whom the availability of the recipient vessels were considered to be uncertain, and 23 of these were operated on. Radiographic and operative findings regarding the availability of the recipient vessels for anastomosis were correlated in 21 of these 23 patients. 3D‐MSCTA yielded two false‐positive results; anastomosis was not possible because of widespread atherosclerotic plaques and poor flow observed in the recipient arteries despite the good caliber observed in 3D‐MSCTA images. 3D‐MSCTA provides a noninvasive means of preoperatively assessing recipient site vessels for anatomic variations and suitability before free tissue transfer and enables the surgeon to establish an appropriate treatment plan. But it is not 100% reliable yet and the possibility of false‐positive results should be kept in mind, especially inthe patients with peripheral vascular disease. 3D‐MSCTA has the potential to replace digital subtraction angiography for planning of microvascular reconstructions and newer devices with higher resolutions will probably increase the reliability of this technique. © 2009 Wiley‐Liss, Inc. Microsurgery, 2009. 相似文献
50.