Publications by authors named "Koc Zehra Pinar"

Article Synopsis
  • The study looked at a special imaging test called SPECT/CT to help find Meckel's diverticulum (MD) in kids.
  • They tested 52 kids who might have MD and compared results from two different imaging methods.
  • SPECT/CT could make it easier to find MD and reduce mistakes in diagnoses, but more research is needed to confirm its benefits.
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Background: Prostate cancer patients, undergo imaging procedures, with [Ga]Ga-PSMA-11 PET/CT (prostate-specific membrane antigen based positron emission tomography/computed tomography) utilized for primary and secondary staging. PSMA thyroid incidentalomas (PTI) are discovered in the thyroid gland while imaging prostate cancer patients with [Ga]Ga-PSMA-11 PET/CT.

Aims: The aim of the study was to determine the clinical significance of PTIs detected on [Ga]Ga-PSMA-11 PET/CT.

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A 36-year-old man who was at follow-up for histiocytosis had sudden-onset symptoms of unilateral ophthalmic increased pressure. The patient was referred to the FDG PET/CT for determination of involvement with suspicion of Erdheim-Chester disease. The reduction of the FDG uptake in all of the lesions (medial temporal lobes, nasal septum, medulla spinalis in sacral region, as well as perinephritic infiltrations), which were determined by the first PET/CT, was achieved at second imaging.

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 Imaging plays an important role in the evaluation of prostate cancer patients. In recent years, much attention has been focused on gallium 68 prostate-specific membrane antigen positron emission tomography-computed tomography ( Ga PSMA PET-CT) in prostate cancer patients and has been widely used for staging, restaging, and therapy response for these patients. The aim of this study was to report Ga PSMA PET-CT in other cancers and benign processes incidentally detected on Ga PSMA PET-CT in patients with prostate cancer.

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 Patients diagnosed with breast cancer and decided to undergo surgical treatment can undergo neoadjuvant therapy following their 2-deoxy-2-[fluorine-18]fluoro-D-glucose positron emission tomography/computed tomography ( F-FDG PET/CT) findings. The present study aims to determine the statistical significance of these patients whose treatment plan was changed and the reasons for the change in the plan.  The demographic features and treatment plans of 151 cases who were diagnosed with any stage of breast cancer were evaluated.

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A 64-year-old male patient with metastatic prostate carcinoma diagnosis received lutetium-177 prostate-specific membrane antigen (PSMA) treatment; however, his disease progressed. Herein, presented the final images of the patient that demonstrated a superscan appearance in the Gallium-68 PSMA positron emission tomography/computed tomography, which is a rare phenomenon.

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Imaging of prostate cancer has recently had new modalities. Ga-68 Prostate Specific Membrane Antigen (PSMA) Positron Emission Tomography/Computed Tomography (PET/CT) has gained important diagnostic role in the management of the patients with prostate cancer. Patients with progressively elevated serum prostate specific antigen (PSA) level may be evaluated by Ga-68 PSMA PET/CT imaging.

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Objective: Although F-18 fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) is a valuable imaging method in most of the malignant tumors, it is considered to have limited diagnostic ability in urothelial tumors due to high physiologic urine activity. The aim of the present study was to evaluate the effect of post-diuretic late phase imaging to the visual and quantitative evaluation of urothelial tumors in the staging and restaging of the patients.

Material And Methods: Two patients with ureter and 40 patients with bladder tumors (6 females and 36 males, mean age: 67.

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Objectives: To evaluate the role of F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) for the diagnosis of anterior mediastinal masses.

Methods: The oncological F-FDG PET/CT images of 41 patients (17 women, 24 men; age: 16-83 years, mean age: 50.5±19.

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The F-fluorodeoxylucose (FDG) positron emission tomography (PET) is the gold standard imaging modality in the staging of lymphoma. The superscan appearance in the FDG PET/computerized tomography (CT) imaging might be because of benign diseases or malignant infiltrations. This case report presents lymphomatous blastic infiltration as a cause of superscan appearance in F-FDG PET/CT.

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A 23-year-old male patient who presented with impaired kidney function tests attended to hospital for hemodialysis and underwent F-FDG positron emission tomography/computed tomography (PET/CT) examination for the metabolic characterization of the intra-abdominal mass which was found in the ultrasonography. F-FDG PET/CT revealed a mass lesion adjacent to the liver which was hypermetabolic and the pathology of the lesion was determined as amyloidosis. To the best of our knowledge, the case with F-FDG PET/CT images of a huge amyloid mass is the first in the literature.

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Primary lung lymphoma is one of the rarest forms of lymphoma and pulmonary space-occupying lesions. This case report represents the F-18 fluorodeoxyglucose positron emission tomography/computed tomography images of the most severe form of the primary pulmonary lymphoma reported in the literature.

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In this study we wanted to present a case with the history of multiple previous neck explorations and persisting upper mediastinal ectopic parathyroid adenoma who underwent a successful operation with radioguided minimal invasive approach.

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Although the in-transit lymph node is a well-known issue in malignant melanoma, it is not documented sufficiently in breast cancer. In this case report an in-transit lymph node demonstrated by both PET/CT and sentinel lymph node mapping and diagnosed by pathology is reported.

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Erdheim-Chester disease (ECD) is a proliferative disorder of non-Langerhans histiocytes with a higher incidence in the fifth to seventh decades and rarer occurrence in the pediatric population. Although ECD typically involves bone, it can also affect the central nervous system, cardiovascular system, retro-orbital space, retroperitoneal space, and kidneys, lungs, and skin. A 13-year-old Syrian girl who presented with multisystemic involvement was diagnosed with ECD.

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Introduction: Pleural plaques have the possibility of bearing malignancy thus investigation of this entity is important and the most important indicator of malignancy in general is fluorodeoxyglucose (FDG) accumulation in radiological appearance. However there is discrepancy between results of previous studies in the literature about this subject. The aim of this study is to analyze the standardized uptake value of pleural plaques and the cut off levels for malignancy in comparison with computed tomography (CT).

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Splenosis is implantation of the splenic tissue in the abdominal region or elsewhere in the body as a consequence of trauma or splenectomy, which might mimic intra-abdominal involvement of several malignancies. This case report presents a patient with abdominal implants without F-FDG accumulation confirmed to be splenosis by Tc-99m nano-coloid scintigraphy.

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Objectives: To investigate the role of F-FDG positron emission tomography/computed tomography (PET/CT) in detection of recurrence in ovarian cancer patients with increased CA-125 levels.

Methods: Fifty-two patients (30-80 years old, mean: 58.5±10.

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Background: To evaluate the clinical features of patients with multicystic dysplastic kidney (MCDK).

Methods: The medical files of children diagnosed with MCDK between January 2008 and November 2015 were retrospectively reviewed. The demographic, clinical, laboratory and radiological data were evaluated.

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The newest development in sentinel lymph node imaging is portable gamma probe imaging. In this case report, results of all SLN detection methods were analyzed. The patient was imaged using a large field-of-view gamma camera with additional blue dye administration and intraoperative localization of sentinel lymph node using both gamma probe and portable gamma camera was performed.

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Aim: F-18 fluorodeoxyglucose (FDG) PET/CT has several advantages in diagnosis of cancer of unknown primary with reported incremental diagnostic value. In this study, we evaluated the patients who were presented with multiple brain metastasis and unknown primary tumor.

Materials & Methods: 31 patients (17 males, 14 females; mean: 56.

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Inflammatory myofibroblastic tumor (IMT) can be seen in all age groups, although it is more common in children and adolescents. We report the FDG PET/CT findings in an 8-year-old boy with endobronchial IMT. Endobronchial IMT is more commonly seen in young adults.

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At present a large number of the renal transplantations are being performed from the deceased donors. The success of these transplantations depends on the viability of the deceased donor kidneys. The aim of this study was to investigate the reliability of scintigraphic estimation of function of deceased donor kidneys by comparing the histopathologic and scintigraphic findings.

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Aim Of The Study: F-18 FDG PET/CT is the most effective method for demonstrating extrapulmonary metastases of lung cancer. The aim of this study is to investigate the level of muscular metastasis of non-small-cell lung carcinoma (NSCLC) in F-18 FDG PET/CT and to demonstrate the characteristics of this special group of patients.

Material And Methods: A total of 1150 patients with the diagnosis of NSCLC, who were referred for F-18 FDG PET/CT, were included into the study.

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