Publications by authors named "Ali Yıkılmaz"

Background: Upper gastrointestinal (GI) contrast studies are frequently requested to aid superior mesenteric artery syndrome diagnosis, a rare entity. Compression of the third duodenal part is expected to be mid-to-left of the midline where the superior mesenteric artery arises from the aorta; however, a duodenal impression to the right of the midline due to normal anatomic impression by the inferior vena cava (IVC) is often encountered and frequently misdiagnosed.

Objective: The purpose of this study was to determine the frequencies of (1) normal right-of-midline duodenal impressions and (2) mid-to-left of midline compressions in upper GI studies in a tertiary pediatric referral center.

View Article and Find Full Text PDF

Background: Desmoplastic small round cell tumor (DSRCT) is a rare and aggressive malignancy commonly involving the abdomen and/or pelvic peritoneum. Despite aggressive therapy, the prognosis remains poor. Central nervous system relapse is rare in abdominal/pelvic primary DSRCT.

View Article and Find Full Text PDF

Poland's syndrome is a rare congenital anomaly accompanied by the absence of the pectoralis major, and the ipsilateral upper-limb and chest wall deformities. Hypoplasia of the breast, agenesis of the ipsilateral rib cartilage, athelia, and ipsilateral developmental finger anomalies such as syndactyly can also be seen. In the literature, only 56 cases of dextrocardia and left-sided Poland's syndrome have been described.

View Article and Find Full Text PDF

Objectives: The aim of this study was to assess the feasibility of the novel "superb microvascular imaging" (SMI) Doppler ultrasound technique to detect ovarian vascularity in healthy children and to compare it with the conventional Doppler ultrasound techniques.

Methods: This prospective study included 140 girls, aged 3 to 18 years, for which an abdominal ultrasound study was requested in the pediatrics outpatient clinics for suspicion of nonovarian pathologies. Nineteen individuals were excluded from the study due to incomplete ultrasound scanning.

View Article and Find Full Text PDF

Purpose: To evaluate the diffusion properties of clear cell renal cell carcinoma (ccRCC) on magnetic resonance imaging (MRI) concerning their Fuhrman nuclear grades and sizes, and to compare the diagnostic performance of two ROI placement techniques for apparent diffusion coefficient (ADC) measurement (entire mass vs. only the darkest region of the mass).

Material And Methods: Fifty-one ccRCC were enrolled in the study and grouped into low-grade ccRCC (Fuhrman grade 1 and 2, = 37) and high-grade ccRCC (Fuhrman grade 3 and 4, = 14).

View Article and Find Full Text PDF

Objectives: To evaluate testicular vascularity in neonates by using the novel Superb Microvascular Imaging (SMI; Toshiba Medical Systems Corporation, Tokyo, Japan) ultrasound (US) technique and to compare this technique to conventional Doppler US techniques.

Methods: A total of 140 healthy neonates between 2 and 60 days old who were admitted for routine screening were included in the study. However, in 9 cases, the Doppler study could not be completed.

View Article and Find Full Text PDF

Different types of malignancies can be seen in patients with neurofibromatosis type 1 (NF-1). Herein we present a rare combination of NF-1 and biliary rhabdomyosarcoma in a male infant. An 11-month-old boy, who was recently diagnosed with NF-1, presented to the outpatient clinic with a 3-month history of prolonged jaundice, and failure to thrive.

View Article and Find Full Text PDF

Background: Health care programs for children with Down syndrome (DS) help improve the overall outcome and quality of life of these children. It is therefore very important to focus on the most common and serious problems of these patients, such as congenital heart defects and cardiac problems, and to keep medical guidelines updated with regard to these problems.

Objectives: The aim of this study was to evaluate aortic intima-media thickness (aIMT), lipid profiles and blood pressure in DS patients in comparison with a control group of ageand gender-matched neonates without DS.

View Article and Find Full Text PDF

Purpose: To detect and characterize changes in stiffness of thrombus in patients with acute and subacute deep venous thrombosis (DVT) by using real-time elastography (RTE).

Methods: Fifty-eight patients with acute or subacute DVT were prospectively evaluated by B-mode sonography (US), color Doppler US (CDUS), and RTE. Two radiologists evaluated the thrombus echogenicity, compressibility, and recanalization of the affected vein, and thrombus stiffness in consensus.

View Article and Find Full Text PDF

Pediatric urinary system neoplasms are a diverse group of tumors that frequently overlap in their clinical and radiologic features. By contrast, the histopathologic classification and treatment of these entities have become increasingly refined, resulting in improved outcomes, with the overall survival of Wilms tumors now exceeding 90%. Significantly, many contemporary protocols rely on radiologic diagnosis in the absence of tissue confirmation.

View Article and Find Full Text PDF

Recent developments regarding the treatment of pediatric liver tumors have significantly improved patient care. Stimulated by collaboration between international pediatric groups, advances have been made in surgical techniques, transplantation options, and chemotherapy schemas. In light of this progress, clear understanding of the state-of-the-art imaging evaluation of hepatobiliary tumors has become even more integral to the effective management of children with hepatic neoplasms.

View Article and Find Full Text PDF

 Familial Mediterranean fever (FMF) is an inherited inflammatory disorder characterized by attacks of fever with polyserositis.  The purpose of this study was to evaluate pediatric patients with FMF who had central nervous system (CNS) findings.  Our medical records database for 2003 to 2014 was screened retrospectively.

View Article and Find Full Text PDF

The most well known complications of fleet enema solution are cardiac insufficiency, renal failure, water-electrolyte imbalance, and ileus. A 7-y-old girl with phenylketonuria and long-term constipation was admitted to the emergency department with symptoms of seizure, vomiting and abdominal distention. Laboratory results revealed hypocalcemia and hyperphosphatemia.

View Article and Find Full Text PDF

Background: Angiomatoid fibrous histiocytoma is a rare soft-tissue tumor that more often affects children and young adults. There is little information available regarding the imaging appearance of angiomatoid fibrous histiocytoma in children.

Objective: To describe the ultrasonographic (US) and magnetic resonance (MR) imaging findings of angiomatoid fibrous histiocytoma in children.

View Article and Find Full Text PDF

Background: Necrotizing enterocolitis (NEC) is the most important gastrointestinal emergency in the neonatal period and early detection is very important for its management. Bowel ischemia-hypoperfusion is one of the main etiological factors. In the literature, a few studies have focused on arterial Doppler ultrasonography (DUS) features of splanchnic arteries; however, their clinical implications are not clear.

View Article and Find Full Text PDF

Background/aim: Established indications for surgery in necrotizing enterocolitis (NEC) are pneumoperitoneum and failure to improve or clinical deterioration with medical treatment alone. It has been proposed that infants with intestinal necrosis may benefit from surgery in the absence of one of these indications yet the diagnosis of definitive intestinal necrosis is challenging. Recent data suggest that abdominal ultrasound (US) examination focused on the gastrointestinal tract and the peritoneal cavity may be of utility in this regard.

View Article and Find Full Text PDF

Congenital hypothyroidism (CH) is the most common endocrine pathology in neonates. Inappropriate treatment of CH is complicated by irreversible brain damage or low IQ score. Hormone replacement therapy with L-thyroxine (L-T4) is sufficient for a very large proportion of patients.

View Article and Find Full Text PDF

Aim: Iodine deficiency is one of the most important causes of congenital hypothyroidism. In addition to thyroid hormone replacement, iodine supplementation is also given to newborns with congenital hypothyroidism due to iodine deficiency. We aimed to determine whether it is beneficial to administer iodine supplementation in addition to the L-thyroxine (L-T4) treatment of newborns with congenital hypothyroidism due to iodine deficiency.

View Article and Find Full Text PDF

Guillain-Barré syndrome is a rapidly progressive symmetrical muscle weakness associated with acute inflammatory disease. Transverse myelitis (TM) is the inflammation of the spinal cord characterized by rapidly evolving muscle weakness in the lower extremities, defects in sensory level and sphincter dysfunction. Guillain-Barré syndrome, and TM association occurs very rarely in childhood.

View Article and Find Full Text PDF

Introduction: Torticollis can be congenital or may be acquired in childhood. Acquired torticollis occurs because of another problem and usually presents in previously normal children. The causes of acquired torticollis include ligamentous, muscular, osseous, ocular, psychiatric, and neurologic disorders.

View Article and Find Full Text PDF

Background/aims: Congenital hypothyroidism (CH) in neonates is associated with lipid alterations that might be a risk factor for early cardiovascular disease in adult life. The aim of this study was to investigate the effect of CH on lipid metabolism and aortic intima media thickness (aIMT) as a unique finding of the increased risk of atherogenic risk in neonatal age.

Methods: The study group consisted of 15 newborns with CH who were identified by neonatal mass screening (patient group), and 25 healthy newborns (control group).

View Article and Find Full Text PDF

Background: The aim of this study was to present our experience with six cases of fetal intracranial hemorrhage (ICH) in terms of prenatal diagnostic features, and postnatal outcome.

Methods: The database of prenatal diagnosis unit was searched for antenatally diagnosed ICH cases. Maternal characteristics, ultrasound (US), and magnetic resonance imaging (MRI) findings, clinical course, and postnatal outcome were noted.

View Article and Find Full Text PDF