Tıp Fakültesi / Faculty of Medicine

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

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Author: search.filters.author.Uslu, NihalHas files: No

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    Neuroblastoma Accompanied by Hyperaldosteronism
    (2014) Gulleroglu, Kaan; Bayrakci, Umut; Kinik, Sibel Tulgar; Uslu, Nihal; Atilgan, Alev O. K.; Sarialioglu, Faik; Baskin, Esra; https://orcid.org/0000-0003-1434-3824; https://orcid.org/0000-0002-6733-8669; https://orcid.org/0000-0001-8595-8880; https://orcid.org/0000-0002-8257-810X; https://orcid.org/0000-0003-4361-8508; 25340174; AAJ-8833-2021; ABC-5258-2020; AAK-3333-2021; AAL-7766-2021; B-5785-2018
    Background: Tumors known derived from kidneys which take place in secondary hyperaldosteronism etiology are juxtaglomerular cell tumor and Wilms' tumor. Neuroblastoma presenting with hyperaldosteronism is rare. Case: A 15-month-old girl who had been having diarrhea and fever for 2 weeks presented with a 3 day history of bilious vomiting, metabolic acidosis and severe hypokalemia. She was referred to our hospital with the pre-diagnosis of unknown manifest hypertension etiology, diarrhea, and paralytic ileus after having therapy-resistant hypokalemia and severe resistant acidosis. On her examination after being admitted to our clinic, she was weak, unwell and lethargic with a blood pressure of 140/93 mmHg. Due to the hypertension and severe hypokalemia, the patient was considered to be hyperaldosteronism. Serum aldosterone level, plasma renin activity and cortisol level were elevated. Radiologic findings were compatible with neuroblastoma. The patient underwent an abdominal surgery and the mass excision. The histopathological examination was proved neuroblastoma. Conclusion: Hyperaldosteronism can be presented by unexpected atypical forms as in our patient.
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    Predictive Value of Early Period Doppler Ultrasonography on Early and Long-Term Allograft Function
    (2016) Melek, Engin; Baskin, Esra; Gulleroglu, Kaan; Uslu, Nihal; Moray, Gokhan; https://orcid.org/0000-0003-4361-8508; https://orcid.org/0000-0003-1434-3824; https://orcid.org/0000-0002-6733-8669; https://orcid.org/0000-0003-2498-7287; B-5785-2018; AAJ-8833-2021; ABC-5258-2020; AAE-1041-2021
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    Liver Stiffness Measurement Using Acoustic Radiation Force Impulse (ARFI) in Living And Deceased Donor Orthotopic Liver Transplantation Patients
    (2016) Haberal, Murat; Turnaoglu, Hale; Ozdemir, Adnan; Uslu, Nihal; Reyhan, Nihan Haberal; Moray, Gokhan; Haberal, Mehmet; https://orcid.org/0000-0002-8211-4065; https://orcid.org/0000-0002-0781-0036; https://orcid.org/0000-0003-0652-5396; https://orcid.org/0000-0002-6733-8669; https://orcid.org/0000-0001-9852-9911; https://orcid.org/0000-0003-2498-7287; https://orcid.org/0000-0002-3462-7632; R-9398-2019; AAK-8242-2021; AAH-9023-2020; ABC-5258-2020; AAK-4587-2021; AAE-1041-2021; AAJ-8097-2021
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    Doppler Ultrasonography Findings During Recovery Period of Transplanted Kidney After Infarction and Necrosis Due to Renal Vein Thrombosis: A Case Report
    (2017) Ozturk, Funda Ulu; Uslu, Nihal; Akcay, Eda Yilmaz; Haberal, Mehmet; 0000-0002-3462-7632; 0000-0002-6733-8669; 0000-0001-6831-9585; 28260477; AAJ-8097-2021; ABC-5258-2020; AAK-1960-2021
    A 47-year-old male patient underwent living-related renal transplant. On day 3 posttransplant, without evidence of associated clinical symptoms, the patient's serum creatinine levels had increased. The patient was given immunosuppressive medication, and a follow-up Doppler ultrasonography revealed hypoechoic areas in the inferior pole of the renal parenchyma. Eventually, on day 25, there was no perfusion in the superior and inferior poles of the transplanted kidney. No venous flow was shown in the middle segment, and only arterial vascularization with a high resistive index and negative diastolic phase was observed. Renal biopsy showed acute humoral rejection. This was interpreted as venous thrombosis secondary to acute humoral rejection. Tissue plasminogen activator infusion, plasmapheresis, and hemodialysis were administered. After 1.5 months, arterial flow returned to its normal pattern and the renal allograft recovered by gaining back its full vascularity at the end of month 8.
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    Ultrasonography Findings of Acute Tubulointerstitial Nephritis and Multiple Abscesses Following Renal Transplant: A Case Report
    (2017) Tezcan, Sehnaz; Uslu, Nihal; Soy, Ebru H. Ayvazoglu; Haberal, Mehmet; https://orcid.org/0000-0001-7204-3008; https://orcid.org/0000-0002-6733-8669; https://orcid.org/0000-0002-0993-9917; https://orcid.org/0000-0002-3462-7632; 28260478; ABC-5258-2020; AAC-5566-2019; AAJ-8097-2021
    Urinary tract infection is the most common complication after kidney transplant that can cause graft loss. An early diagnosis of urinary infections decreases morbidity and mortality. Besides clinical and laboratory examinations, ultrasonography is considered as the primary imaging modality for the diagnosis of urinary tract infections. Here, we report a 53-year-old woman who presented with fever and pain at surgical site. Ultrasonography examination showed multiple, ill-defined or irregularly margined hypoechoic areas within the cortex. Ultrasonography-guided percutaneous renal biopsy was performed. Histopathologic findings were compatible with acute tubulointerstitial nephritis and multiple abscesses. Ultrasonography is the most widely applied imaging modality for diagnoses of complications after renal transplant. Although ultrasonography findings of infections are generally nonspecific, it still plays an important role in the diagnosis of urinary infections after renal transplant.
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    Can Strain Elastography Combined with Ultrasound Breast Imaging Reporting and Data System Be A More Effective Method in The Differentiation of Benign and Malignant Breast Lesions?
    (2017) Arslan, Serdar; Uslu, Nihal; Ozturk, Funda Ulu; Akcay, Eda Yilmaz; Tezcaner, Tugan; Agildere, Ahmet Muhtesem; https://orcid.org/0000-0001-7984-4326; https://orcid.org/0000-0002-6733-8669; https://orcid.org/0000-0001-6831-9585; https://orcid.org/0000-0002-3641-8674; https://orcid.org/0000-0003-4223-7017; 28154989; AAH-9796-2019; ABC-5258-2020; AAK-1960-2021; AAD-9865-2021; AAB-5802-2020
    To investigate whether a novel method that combines breast imaging reporting and data system (BI-RADS) with strain elastography contributes to diagnostic performance in differentiation of malignant and benign breast lesions. In 81 patients, 81 breast lesions were prospectively investigated. Breast lesions were separately evaluated with ultrasonography and strain elastography. While evaluations with ultrasonography were based on 2003 BI-RADS-US, strain elastography evaluations were based on a 5-point scale and strain ratio. Diagnostic performances of ultrasonography, strain elastography, and the combined method were compared. Among 81 lesions, 43 (53.1%) were benign and 38 (46.9%) were malignant. When a cutoff point of category 3 was used, sensitivity, specificity, positive and negative predictive values, and accuracy for BI-RADS were 100, 11.6, 50, 100, and 53%, respectively. When BI-RADS and strain ratio were combined, sensitivity, specificity, positive and negative predictive values, and accuracy were 89.5, 93, 91.9, 90.9, and 91.3%, respectively. When BI-RADS and elastography scores were combined, sensitivity, specificity, positive and negative predictive values, and accuracy were 86.8, 97.7, 97.1, 89.4, and 92.5%, respectively. The combination of strain elastography and BI-RADS was found to have better diagnostic performances to diagnose breast lesions than BI-RADS alone.
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    The Predictive Value of Resistive Index Obtained by Doppler Ultrasonography Early After Renal Transplantation on Long-Term Allograft Function
    (2017) Melek, Ergin; Baskin, Esra; Gulleroglu, Kaan; Uslu, Nihal; Kirnap, Mahir; Moray, Gokhan; Haberal, Mehmet; https://orcid.org/0000-0003-4361-8508; https://orcid.org/0000-0003-1434-3824; https://orcid.org/0000-0002-6733-8669; https://orcid.org/0000-0003-2498-7287; https://orcid.org/0000-0002-3462-7632; 27900821; B-5785-2018; F-3294-2013; ABC-5258-2020; AAH-9198-2019; AAE-1041-2021; AAJ-8097-2021
    DUSG is a useful diagnostic tool for the follow- up of renal transplant recipients. The measurement of intrarenal arterial RI by DUSG has been proven to predict short-term AF. The aim of the study was to evaluate the predictive value of DUSG performed during the early after RTx on long-term AF. Seventy patients were enrolled into study. DUSG was performed at third and seventh days after RTx. Patients were divided into two groups according to rate of recovery of graft function as patients with normal graft function and abnormal graft function. Although the RI values were correlated with the AF early after transplantation, they were not correlated with long-term AF. However, the rate of recovery of graft function at early period after RTx was correlated with creatinine level at first year and with glomerular filtration rate at first year and last visit. Although the RI has no predictive value for long-term AF, the rate of recovery of graft function at early post-transplantation period has predictive value for long-term AF; patients with higher RI values early after RTx should be followed carefully for the development of chronic allograft injury.
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    Biopsy Related Renal Allograft Arteriovenous Fistulas: A Series of 5 Cases
    (2018) Sezer, Rahime; Uslu, Nihal; Akdur, Aydincan; Haberal, Mehmet; 0000-0002-6733-8669; 0000-0002-8726-3369; 0000-0002-3462-7632; ABC-5258-2020; AAA-3068-2021; AAJ-8097-2021
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    Shear Wave Elastography Findings of Achilles Tendons in Patients on Chronic Hemodialysis and Patients with renal Transplantation
    (2018) Rahatli, Feride Kural; Turnaoglu, Hale; Haberal, Murat; Kirnap, Mahir; Sayin, Burak; Fidan, Cihan; Uslu, Nihal; Haberal, Mehmet; 0000-0002-4226-4034; 0000-0002-0781-0036; 0000-0002-8211-4065; 0000-0001-8287-6572; 0000-0002-9093-1524; 0000-0002-6733-8669; 0000-0002-3462-7632; AAL-9808-2021; AAK-8242-2021; R-9398-2019; AAH-9198-2019; J-3707-2015; F-5830-2019; ABC-5258-2020; AAJ-8097-2021
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    Importance of Regular Ultrasound Imaging in Renal Allografts for Early Diagnosis of De Novo Renal Cell Carcinoma: A report of Two Rare Cases
    (2018) Ozturk, Funda Ulu; Uslu, Nihal; Kirnap, Mahir; Haberal, Mehmet; 0000-0002-6733-8669; 0000-0002-3462-7632; ABC-5258-2020; AAH-9198-2019; AAJ-8097-2021