Taner Akalin

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OBJECTIVE Common contrast-enhancing malignant tumors of the brain are glioblastoma multiforme (GBMs), anaplastic astrocytomas (AAs), metastases, and lymphomas, all of which have sometimes similar conventional MRI findings. Our aim was to evaluate the role of perfusion MR imaging (PWI) and diffusion-weighted imaging (DWI) in the differentiation of these(More)
To evaluate the MRI findings of liposarcomas of different histologic types and correlate these with the histopathologic features. The MR images of seven liposarcomas were reviewed retrospectively to assess the tumor size, location, margination, signal characteristics and enhancement patterns in different histologic types. Seven liposarcomas comprising three(More)
In this paper, we describe two siblings with Juvenile Hyaline Fibromatosis (JHF) who were diagnosed at the age of 34 and 29 years respectively. JHF is a very congenital disease, mainly diagnosed in the first few years of life, with less than 40 published cases in literature. All the main clinical features of this syndrome, which may be summarised as(More)
OBJECTIVE To determine whether diffusion-weighted imaging by using minimum apparent diffusion coefficient (ADC(min)) values could differentiate various brain tumors including gliomas, metastases, and lymphomas. MATERIALS AND METHODS We examined 65 patients with histologically or clinically diagnosed brain tumors (12 low-grade gliomas, 31 high-grade(More)
Benign intestinal tumors are rare in children, however we describe an inflammatory myofibroblastic tumor (IMT) of the jejunum in a 2-year-old girl who presented with an intestinal obstruction. During laparotomy, an annular mass around the jejunum was resected, from which a histological diagnosis of IMT was made. A review of the literature for this rare(More)
BACKGROUND The Runx family proteins, including RUNX3, are tissue-restricted transcription factors and play role in neuronal development and tumorigenesis. RUNX3 has an important role in glioblastoma (GBM) tumorigenesis because of its promoter hypermethylation. AIM We aimed to evaluate the methylation-mediated expression regulation of RUNX3 gene in brain(More)
Gliosarcoma is a rare brain tumor that consists of both glial and mesenchymal components. We report the case of a 68-year-old female with cranial gliosarcoma metastatic to the spinal cord. Initially, the patient was diagnosed with cranial gliosarcoma and treated with surgical resection followed by radiotherapy. Four months after she completed treatment, she(More)
The role of p53 mutation has been shown in different human malignancies, including various skin cancers. In this study, we examined p53 protein expression in 25 eccrine poromas and 11 porocarcinomas by immunohistochemistry. P53 expression was observed in 88% (22 of 25) of eccrine poromas and 73% (8 of 11) of porocarcinomas. In eccrine poromas, percentage of(More)
A United Nations (UNHCR)-sponsored study has been undertaken, involving neurologists from the Turkish-speaking northern and Greek-speaking southern communities of Cyprus, to ascertain the prevalence of multiple sclerosis (MS) and to bring the medical personnel of the two communities to work together. The Turkish community includes both Turkish Cypriots and,(More)
BACKGROUND Central white scarlike patch and a delicate pigment network at the periphery is the typical appearance of dermatofibromas on dermoscopy. OBJECTIVE We aimed to analyze the different dermoscopic appearances of dermatofibromas. METHODS Fifty-two dermatofibromas with dermoscopic features different from the classic type, which were detected(More)