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Biomedical subjects

Saniye Ekinci

Publications and source records attributed to Saniye Ekinci.

11 recordsLinked to original sources

An unusual case of grass inflorescence aspiration presenting as a chest wall tumour.

A 9-year-old boy was referred to the Oncology Department because of a thoracic soft-tissue mass thought to be a chest wall tumour. He had a history of grass inflorescence (Hordeum murinum) aspiration 2 weeks prior to this admission. On physical examination a tender soft-tissue mass under the right scapula and diminished breath sounds from the right lower lobe were detected. Thoracic CT confirmed soft-tissue swelling of the right posterior chest wall. There was a hypodense area within the soft-tissue mass suggesting a foreign body and also focal consolidation of the right lower lobe adjacent to the soft-tissue swelling. We report here unique CT findings of grass inflorescence aspiration before and after its migration through the airways.

Abscess↗

Hepatic lobectomies in children: experience of a center in the light of changing management of malignant liver tumors.

Hepatic resection is the main treatment modality for hepatic tumors in childhood. Advances in diagnostic technique, preoperative preparation, surgical technique, and postoperative management increased the success rate. The aim of this study is to report our experience in hepatic lobectomy, which is relatively rare procedure in childhood. Medical records of 25 patients who underwent hepatic lobectomy between January 1977 and June 2002 were reviewed retrospectively. Age, gender, diagnosis, physical examination findings, results of preoperative laboratory investigations, radiological examination, resectability criteria, preoperative biopsies, chemotherapies, radiotherapies, postoperative pathological results, incisions, operation technique, intraoperative transfusions, drains used, antibiotic prophylaxes, and intraoperative and postoperative complications were evaluated for all patients. Out of 25 patients with hepatic tumor seven patients with hepatoblastoma and four patients with hepatocellular carcinoma were given 5.7 +/- 0.3 cycles of chemotherapy before the operation. Right lobectomy (n = 12), left lobectomy (n = 5), extended left lobectomy (n = 4), and extended right lobectomy (n = 3) and right lobectomy with enucleation of two masses from left lobe (n = 1) were performed. Intraoperative blood transfusion of 30.7+/-6.0 ml/kg body weight was necessary. Pathological examination of resected tumors revealed hepatoblastoma (n=11), mesenchymal hamartoma (n = 5), hepatocellular carcinoma (n = 4), hemangioendothelioma (n=1), malignant mesenchymal tumor (n = 1), hemangioma (n = 1), cyst adenoma (n = 1), and metastasis of cellular mesoblastic nephroma (n = 1). Patients were observed in the intensive care unit for 3.4 +/- 0.3 days. Postoperative complications were sepsis (n = 1), disseminated intravascular coagulation (n = 2), fever (n = 3), jaundice (n = 3), intraabdominal abscess (n = 3), ileus (n = 2), and subdiaphragmatic abscess with pleural effusion (n = 1). Hepatic lobectomy is a major operation, which is feasible yielding curative results in children. Safe hepatic resections with acceptable blood loss can be performed by a technique relying on good anatomic dissection and surgical control.

Child, Preschool↗

Waardenburg syndrome associated with bilateral renal anomaly.

A 1-year-old girl with Waardenburg syndrome type I presented with double collecting system of left kidney accompanied by nonobstructive hydronephrosis of lower pole and by ureteropelvic junction obstruction of right kidney. Renal involvement in Waardenburg syndrome was reported once in a 4-month-old boy with unilateral duplication of the renal collecting system and in a 16-day-old girl who had right multicystic dysplastic kidney and hydronephrosis in the left kidney. The third case of renal involvement in Waardenburg syndrome is presented here, with special emphasis on early diagnosis and management of renal anomaly. The authors conclude that urinary system anomalies should also be considered in the wide spectrum of Waardenburg syndrome clinical features to avoid life-threatening complications.

Abnormalities, Multiple↗

Posttraumatic splenic pseudoaneurysm and arteriovenous fistula: diagnosis by computed tomography angiography and treatment by transcatheter embolization.

The current treatment of splenic injury in children is conservative. The common concern with nonoperative management of splenic injury involves increased risk of posttraumatic splenic complications. Computed tomography angiography is a noninvasive and useful technique for the detection of the vascular abnormalities in conservatively managed splenic injuries. We present a case of posttraumatic splenic pseudoaneurysm and arteriovenous fistula (AVF) in a 12-year-old boy, which were prediagnosed by color Doppler ultrasound and consecutively shown by computed tomography angiography. The treatment of splenic AVF is indicated to avoid portal hypertension, high output cardiac failure, and related complications. To preserve the splenic immune function and to avoid the risk of surgery and splenectomy complications, splenic pseudoaneurysm and AVF were successfully occluded by transcatheter embolization.

Abdominal Injuries↗

Infantile fibromatosis of the sternocleidomastoid muscle mimicking muscular torticollis.

Infantile fibromatosis is a rare entity in children. Although the cervical region is one of the frequent sites of location for this tumor, the diagnosis may be delayed if it occurs in a usual location for a well-known entity, such as muscular torticollis or fibromatosis colli. The authors present an infant with infantile desmoid fibromatosis of the sternocleidomastoid muscle, which has been considered initially as olive of muscular torticollis.

Diagnosis, Differential↗

Chemical sympathectomy by 6-OH dopamine during fetal life results in inguinal testis through altering cremasteric contractility in rats.

BACKGROUND/PURPOSE: Androgens are proposed to influence testicular descent through modulating sympathetic tone. An experimental study was undertaken to evaluate the effects of prenatal chemical sympathectomy on testicular location associated with the alterations in contractile properties of cremaster muscles in rats. METHODS: Time-mated pregnancies were started in 10 rats. Two groups, each receiving saline or 6-hydroxydopamine from day 15 to day 19 of intrauterine life were established. At 2 months of age, localization of testes were evaluated, cremaster muscles were removed, and contractile properties were studied. Twitch and tetanic contractions were recorded isometrically at 37 degrees C. Effects of verapamil, isoprenaline, and L-NNA were investigated. Results were compared through analysis of variance (ANOVA), and P values less than.05 were considered to be significant. RESULTS: Both testes of all male offspring in the control group (n = 19) were in the scrotum. Six offspring among 17 subjected to 6-hydroxydopamine had undescended testes. Treatment with 6-hydroxydopamine had no effect on force-frequency relationship of cremaster muscle strips. Cremaster muscles of rats exposed to 6-hydroxydopamine had lower sensitivity to voltage-sensitive Ca++ channel blockade by verapamil (3 x 10(4) mol/L; P <.05). These muscles displayed greater contractile response to isoprenaline (10(-5) mol/L; P <.05) but not to nitric oxide synthase inhibition by N(omega)-nitro-L-arginine. Alterations in contractile properties of the muscles did not differ according to localization of testes among rats subjected to 6-hydroxydopamine. CONCLUSIONS: Administration of 6-hydroxydopamine resulted in suprascrotally located testes. This localization has been associated with less exposure at sympathetic tonus. These findings support that sympathetic activity plays an important role in localization of testis.

Animals↗

Ureteropelvic junction obstruction causes histologic alterations in contralateral kidney.

BACKGROUND/PURPOSE: Ureteropelvic junction (UPJ) obstruction causes histologic alterations both in ipsilateral and contralateral kidney. Because these alterations directly affect the fate of renal damage, definition of these alterations is of utmost importance from the clinical point of view. Thus, an experimental study is designed to determine the alterations of renal histology in response to partial and complete UPJ obstruction. METHODS: Fifteen adult female New Zealand rabbits were assigned randomly into 3 groups (each containing 5 rabbits) according to the degree of unilateral UPJ obstruction as group I, sham operation was performed and served as the control group; group II, partial UPJ obstruction was made; group III, complete UPJ obstruction was made. The animals in group I and II were killed after 3 weeks, and animals in group III were killed after 2 weeks. Tissue samples were prepared and processed according to routine light microscopic tissue processing. RESULTS: UPJ obstruction led to glomerulosclerosis, dilatation of proximal and distal tubules of loops of Henle, and dilatation of collecting tubes consistent with necrotic and apoptotic changes in ipsilateral kidneys. Severity of these degenerative changes depended on degree of obstruction. UPJ obstruction also led to histologic alterations on the contralateral kidneys such as glomerular edema, congested blood vessels, dilated tubuli, and necrotic and apoptotic changes in epithelia, which were more prominent in group III than group II. CONCLUSIONS: It is well known that compensating changes including increased blood flow and parenchymal hypertrophy occurs in contralateral kidney as a response to unilateral UPJ obstruction. However histologic findings of this study confirmed progression of parenchymal damage and presence of apoptosis in contralateral kidney for the first time.

Animals↗

Inguinal hernia as a rare manifestation of meconium peritonitis: report of a case.

The usual manifestations of meconium peritonitis confined to the inguinoscrotal region are soft hydroceles, hard nodules in the scrotum, and, occasionally, calcified nodules in the wall of a hernia sac, with or without calcification on abdominal X-ray. Inguinal hernia is an extremely rare manifestation of healed meconium peritonitis. An unusual presentation of meconium peritonitis encountered during hernia repair is described herein to alert the pediatric surgeon of this possibility to avoid unnecessary abdominal exploration.

Hernia, Inguinal↗

A retrospective study of choledochal cyst: clinical presentation, diagnosis and treatment.

The treatment and early diagnosis of choledochal cyst are very important to prevent complications of the disease. Delay in treatment can cause lethal complications like biliary cirrhosis and increased morbidity in patients. We studied 26 children with choledochal cyst retrospectively for their clinical presentation, and for the diagnostic tools and treatment modalities, used. The most common findings of choledochal cyst in our series were abdominal pain, vomiting, and ictures in contrast to the classical triad of the disease of jaundice, mass and pain. The most useful diagnostic tool was abdominal ultrasonography. For the treatment, we preferred Roux-en-Y hepaticojejunostomy to the internal drainage procedures, and the results were excellent with minimal mortality and morbidity. We underline prompt diagnosis and treatment to prevent late complications of the disease.

Adolescent↗

A case of patent ductus venosus with pulmonary arterio-venous fistula as a rare and unique clinical entity.

A 13-year-old boy presenting with digital and lip cyanosis, easy fatigability, and weight gain was diagnosed to have an intrapulmonary arterio-venous fistula. During his routine follow-up examinations, there was fullness on right upper quadrant of his abdomen. Abdominal ultrasonography (USG) showed a mass in portal hilus. We planned abdominal computed (CT) to gain tomography detailed information about the mass. Surprisingly abdominal CT and the color-Doppler sonography showed that the structure mimicking a mass was patent ductus venosus (PDV). We report PDV with intrapulmonary arterio-venous fistula as a unique and rare clinical entity. In addition, we underline the misdiagnosis of portal mass instead of patent ductus venosus. If there is a portal mass in USG or CT, color-Doppler sonography or, if needed, other diagnostic methods should be used to exclude PDV.

Adolescent↗