Browsing by Author "Ak, H."

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Giant Pure Spinal Extradural Foraminal Schwannoma in the Cervical Region
(Anatolian Journal of Clinical Investigation, 2015) Ak, H.; Çelik, Z.E.; Gülşen, İ.
Schwannomas are the most common intraspinal tumors. There tumors are solitary and well encapsulated. They develop from dorsal nerve roots and this characteristic feature is of importance during surgical approach. 70%- 80% of them are in intradural extramedullary location. Total removal of these tumors generally provides cure. Herein, we present a giant pure extradural foraminal schwannoma in a 20 year old female patient presented with pain, numbness and motor weakness at the left hand in the light of the literature. © 2015, Anatolian Journal of Clinical Investigation. All rights reserved.
Ligamentum Flavum Hematoma as a Rare Cause of Failed Back Surgery
(2013) Ak, H.; Şahin, S.; Gülşen, I.; Akyüz, Y.; SeçkIn, S.
Ligamentum flavum hematoma is a rare cause of root or spinal cord compression. It has been defined in the cervical, thoracic, and lumbar segments of the spine. Patients may present with the following symptoms radicular pain, hypoesthesia, loss of muscle power, and cauda equina syndrome due to the anatomic level of the lesion. Magnetic resonance imaging may provide helpful clues in the differential diagnosis of the disease. However, its diagnosis is established with intraoperative and pathological findings. Surgical decompression is the only therapeutic approach reported in the literature. Herein, we present a new case of ligamentum flavum hematoma as a possible cause of failed back in a 75-year old a man who had been operated three times before. After the last surgery, the complaints of the patient were resolved and the histopathological diagnosis was consistent with ligamentum flavum hematoma.
Personality Traits in Fibromyalgia Patients With Paresthetic Complaints
(Wiley, 2016) Balbaloglu, O.; Tanik, N.; Alpayci, M.; Ak, H.; Karaahmet, E.; Inan, L. E.
Prognostic Factors in Oligodendrogliomas: a Clinical Study of Twenty-Five Consecutive Patients
(Asian Pacific Organization for Cancer Prevention, 2015) Atalay, T.; Ak, H.; Celik, B.; Gulsen, I.; Seckin, H.; Tanik, N.; Bavbek, M.
Background: The purpose of this study was to evaluate the prognostic significance of Ki-67 and subjective microvascular density (SMVD) indexes together with other factors in patients with oligodendroglioma. Materials and Methods: In this retrospective study, oligodendroglioma specimens obtained from twenty-five consecutive patients were evaluated for Ki-67 and SMVD indices to help determine histological grading and investigate the fidelity of these markers in clinical prognosis. Other potentially prognostic factors were Karnofsky performance scale, tumor histological grade, and adjuvant radiotherapy. Results: The Ki-67 proliferation index appeared to have a strong correlation with the grade of the tumor and the survival. Age, gender, adjuvant radiotherapy, surgical resection type (complete versus incomplete) did not have any influence on recurrence. The SMVD index correlated significantly with the 3 to 5-year survival. Conclusions: Ki-67 and MVD indexes are important and useful markers in estimating the prognosis of oligodendrogliomas.