Publications by authors named "Oktay Yener"

Duodenal injuries are rare due to their preserved retroperitoneal location. They are mostly observed after deep penetration or high-impact blunt trauma. They are difficult to diagnose and treat.

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Upper gastrointestinal subepithelial tumours (SETs) are generally asymptomatic and clinically insignificant and have malign, borderline and benign variants. In advanced endoscopic procedures, histopathological diagnosis and endoscopic resection are possible and feasible. In this study, we examined our approach to upper gastrointestinal subepithelial tumours and our clinical results.

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Endometriosis is a disease seen in women at reproductive age, characterized by extrauterine localization of endometrial tissue. Colonic endometriosis rarely causes acute mechanical intestinal obstruction (AMIO). It may also be presented with pelvic pain, dyspareunia, tenesmus, painful defecation related to the menstrual cycle.

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Objective: The present study evaluated effects of incidental parathyroidectomy, surgical technique, and presence of thyroiditis or hyperthyroidism on occurrence of postoperative persistent or transient hypocalcemia.

Methods: Patients who underwent thyroidectomy at İstanbul Medeniyet University between 2013 and 2015 were included in the study. Patient information, postoperative serum calcium levels, and pathology reports were investigated retrospectively.

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Gallbladder agenesis (GA) is a rare congenital anomaly of the biliary system often associated with other congenital abnormalities. Patients become symptomatic in 23% of cases (Richards et al., 1993).

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The aim of this study was to determine whether conventional hemostasis (CH) or the harmonic scalpel (HS) results in shorter operative times for thyroidectomy and to evaluate the incidence of postoperative complications with each approach. In this study, 85 consecutive patients undergone open thyroidectomy were randomized into two groups: group CH (conventional hemostasis with classic technique of tying and knots, resorbable ligature, bipolar diathermy) and group HS (harmonic scalpel). Demographics, pathological characteristics, thyroid size, operative time, blood loss, and complications using the Student's t-test and χ (2)-test.

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Sarcomas of the breast account for less than 1% of breast tumors. Leiomyosarcoma is an extremely rare form of primary breast sarcoma. We presented here a case of primary leiomyosarcoma of the breast in a 44-year-old woman.

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Adrenal angiomyolipoma is rare. Only four cases have been reported so far. These are commonly found in Kidney but extrarenal sites are also mentioned.

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Background/aims: We aimed to evaluate the prevalence of non-alcoholic steatohepatitis and metabolic syndrome in patients with symptomatic gallstones undergoing laparoscopic or open cholecystectomy.

Methods: A study of 95 patients was performed. Simultaneous liver biopsies were taken during cholecystectomy between 2006 and 2007.

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Some arterial aneurysm ruptures can be seen during pregnancy. However, spontaneous rupture of the lumbar artery in pregnancy are very rare. In that manuscript we present a 22 year old female who is 8 months pregnant, seen at a peripheral hospital for suspicion of placenta decolmant.

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