Tıp Fakültesi / Faculty of Medicine

Permanent URI for this collectionhttps://hdl.handle.net/11727/1403

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    Is PET/CT Necessary in the Management of Early Breast Cancer?
    (2016) Nursal, Gul Nihal; Nursal, Tarik Zafer; Aytac, Huseyin Ozgur; Hasbay, Bermal; Torun, Nese; Reyhan, Mehmet; Yapar, Ali Fuat; https://orcid.org/0000-0002-5302-4386; https://orcid.org/0000-0002-3583-9282; https://orcid.org/0000-0002-5597-676X; https://orcid.org/0000-0001-8550-3368; https://orcid.org/0000-0003-1715-4180; 26914560; R-3735-2016; IQV-1169-2023; AAJ-7913-2021; AAE-2718-2021; AAJ-5242-2021; AAI-8973-2021
    Purpose Advanced imaging methods in early breast cancers are not recommended before surgery. In contrast to the accepted guidelines, some recent studies have shown some benefits with the use of PET/CT in early-stage breast cancer. In this study, we aimed to document the efficacy of PET/CT in detection of distant metastasis as well as other primary cancers. Patients and Methods In this retrospective study, we reviewed the records of all women patients diagnosed with early breast cancer between March 2012 and December 2014. Besides demographics, we recorded the clinical TNM stage, histology of the tumor, and hormone receptor status. As PET/CT imaging is a routine procedure in our center for early breast cancer, tumor size, lymph node status, distant metastasis, and possible other primary malignancies detected by PET/CT were also recorded. Results Of the 419 women included in the study, 24.8% were clinically staged as stage I while the rest were stage II. Distant metastases were detected in 42 patients (10%). The yield of PET/CT in detecting metastasis was significant in stage II patients compared with stage I patients (12.4% vs 2.9%). In subgroup analysis of stage II patients, the performance of PET/CT in detecting metastasis was still evident in stage IIA patients (9.5%). In logistic regression analysis of the significant and near-significant factors (as detected by univariate analysis) effecting PET/CT detected distant metastasis, only nodal status (P = 0.053) was found to be significant. Conclusions We suggest the use of PET/CT in investigating metastasis in axilla positive and clinically stage II early breast cancer patients.
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    Meckel Diverticulum in Children: Evaluation of Macroscopic Appearance for Guidance in Subsequent Surgery
    (2016) Gezer, Hasan Ozkan; Temiz, Abdulkerim; Ince, Emine; Ezer, Semire Serin; Hasbay, Bermal; Hicsonmez, Akgun; 0000-0002-4635-2613; 0000-0001-8789-6003; 0000-0002-9597-3264; 26435520; J-3197-2013; A-4719-2018; AAJ-9529-2021
    Background: The treatment of incidentally encountered asymptomatic Meckel diverticulum(MD) is controversial. We evaluated whether the macroscopic appearance correlates with clinical features, histopathological findings, future complications, and management decisions. Methods: Patients who underwent MD resection at a single institution from 2000 to 2012 were retrospectively analyzed in terms of age, sex, clinical features, laboratory data, perioperative findings (diverticulum length, diameter, depth, thickening, and height-to diameter ratio [HDR]), pathology, and postoperative follow-up. Results: Fifty children were enrolled. Sixteen percent of the resected MDs were found incidentally. Of 42 complicated MDs, 17 (40%) were long (HDR >= 2), 14 (33%) were thickened, and 29 (70%) exhibited base widening. Histopathologically, ectopic mucosa was found in 32 (64%) of all MDs and in 5 (62%) of incidentally removed MDs. There was no statistical difference between the macroscopic appearance and clinical signs, sex, or presence of ectopic tissue based on palpation. Conclusion: The macroscopic appearance of MD does not indicate the presence or absence of HGM and cannot be used to guide subsequent surgery. Additionally, 40% of symptomatic patients in our study had life-threatening complications requiring prompt fluid resuscitation. We consider that incidentally detected MD should be removed regardless of its macroscopic appearance. (C) 2016 Elsevier Inc. All rights reserved.
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    Malignant Congenital Orbital Teratoma: Glioblastoma Multiforme With Primitive Neuronal Pattern And Choroid Plexus Papilloma: A Rare Diagnosis At An Unusual Age
    (2022) Hasbay, Bermal; Kayaselcuk, Fazilet; Kardes, Ozgur; 35435383
    Childhood orbital teratomas are usually congenital lesions that are most often present at birth with progressive, massive unilateral proptosis. During the routine controls of 27-year-old woman between 26-27th weeks of pregnancy her fetal ultrasonography (USG) revealed a mass in the eye of the fetus, and termination was recommended. The family refused the termination option and in the 37th week of pregnancy, vaginal delivery is performed in an external medical center. The mass in the baby's eye was surgically removed. Microscopic examination revealed disorganized ocular tissues, adipose tissue, microcalcification, nerve plexuses as well as areas of neuronal nodules including hypercellular areas, palisatic necrosis, and microvascular proliferation. The immunprofile- patchy GFAP staining in the areas of cellular epithelioid and spindled cells that also show an focal and sparse expression p53 staining and a high proliferation rate in Ki67 staining-confirmed the hematoxylin-eosin (HE) impression of a teratoma with a component of glioblastoma (GBM). In this unique presentation of a malignant orbital teratoma with a GBM, we have identified three tumor components: (1) GBM component, (2) nodules of neuroglial tissue with mature neurons and BRAF mutation, and (3) papillary proliferation possibly representing a choroid plexus papilloma.