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Öğe GORHAM-STOUT DISEASE OF THE HUMERUS(Assoc Royal Soc Scientifiques Medicales Belges, 2008) Yalniz, E.; Alicioglu, B.; Benlier, E.; Yilmaz, B.; Altaner, S.Gorham-Stout disease is characterized by local proliferation of small vascular or lymphatic channels resulting in progressive destruction and resorption of bone. The etiology and pathogenesis of the disease remains mostly unknown, despite some 175 reported cases. A case of Gorham-Stout disease of the humerus in a 14-year-old boy is described. The patient presented with progressive pain and deformity of the right arm. Although the disease was described in different bones of the body its location in the humerus is rare. We report the natural history and clinical follow-up in a young patient. A fibular graft was performed but 10 months later, resorption and pathological fractures occurred again. This study presents the radiographic and MRI features of Gorham disease.Öğe Hibernoma: A benign lipomatous tumor mimicking liposarcoma(Zerbinis Medical Publ, 2008) Yalniz, E.; Alicioglu, B.; Puyan, F. OzHibernoma is a rare, benign, slow-growing soft tissue tumor. It was named after its resemblance to the brown fat found in hibernating animals. Due to its rich vascularity and magnetic resonance appearance, this tumor may mimic a liposarcoma before tissue diagnosis. Complete resection with meticulous hemostasis is enough for treatment. Malignant potential has not been demonstrated. Herein we present a case of hibernoma arising from the left groin in a young man. The clinical presentation, radiographic and histopathologic features of this rare benign soft tissue tumor are presented. This tumor is clinically important because it is indistinguishable from malignant lesions.Öğe Massive osteoradionecrosis of facial bones and soft tissues(Imprimatur Publications, 2009) Benlier, E.; Alicioglu, B.; Kocak, Z.; Yurdakul-Sikar, E.; Top, H.Osteoradionecrosis (ORN) is one of the most serious and uncommon complications in head and neck irradiation for cancer It is defined as a combination of necrotic soft tissue and bone not being able to heal spontaneously, it demonstrates a general resistance to antibiotics and requires conservative surgical management. Even with modern radiation therapy, its incidence is high v unpredictable and varies between 4-30%. We report on a patient with a huge open cavitation in the cheek, communicating with the mouth and extending to contralateral periodontal gingival and temporal fossa. He had been treated with radiation therapy for naso-pharyngeal cancer 5 years ago and presented with restriction of the opening of the mouth. Osteonecrosis complicated with osteomyelitis was evident in bilateral mandible and maxillary bones and the temporal bone. The ramus of the mandible and zygomatic arc were resected, subtotal maxillectomy was performed and the defect was repaired by a free double island flap from the scapular and parascapular osteocutaneous latissimus dorsi muscle flap supplied by subscapular artery. To our knowledge, this is the most extensive bone and soft tissue destruction due to radiation reported in the literature.Öğe Non specific magnetic resonance features of chondromyxoid fibroma of the iliac bone(Zerbinis Medical Publ, 2007) Yalniz, E.; Alicioglu, B.; Yalcin, O.; Yilmaz, B.Chondromyxoid fibroma is a benign cartilaginous neoplasm. The tumor is rare, perhaps the rarest of all bone tumors. It is more common in long bones and rare in pelvic bones. We report a case of a 31-year-old woman with chondromyxoid fibroma arising from the iliac bone and presenting with leg pain due to compression on the femoral nerve. Magnetic resonance imaging (MRI) features were non specific for chondromyxoid fibroma. We emphasize the need to consider differential diagnosis of chondrosarcoma.Öğe Radiographic size versus surgical size of renal masses: Which is the true size of the tumor?(Imprimatur Publications, 2009) Alicioglu, B.; Kaplan, M.; Yurut-Caloglu, V.; Usta, U.; Levent, S.Purpose: The size of a renal neoplasm is important for staging, prognosis and selection of appropriate treatment. Our aim was to determine whether there is a discrepancy between the radiographic and pathological size of renal tumors. Patients and methods: The maximum size of 35 resected renal tumors was measured by computed tomography (CT) by 2 independent observers. The radiographic and pathological sizes were compared by size range and tumor radiological features. Results: Although the radiographic and pathological size for all tumors vas not statistically different (7.50 is. 6.25 cm, p=0.452), the average radiographic size was larger than pathological tumor size in tumors smaller than 7 cm. Solid tumors showed more reduction in size (17.02%) compared with cystic and necrotic tumors (p=0.731). Only the radiographic size of ill-defined tumors was smaller than their pathological size (average 33.33%; p=0.865). The influence of tumor side (left or right kidney) and its location within the kidney did not influence the degree of decrease (p=0.147 and p=0.981, respectively). Conclusion: A reduction in the size of renal tumors is observed in tumors < 7 cm, which is explained by, vasoconstriction during the temporary renal artery occlusion, sulfate hypothermia and blood loss during the operation. This reduction of size is secondary to surgery, the radiographic size of renal minors should be considered in staging and selecting the appropriate treatment for tumors < 7 cm for which the decision of surgical approach depends on the size of the tumor.
