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Biomedical subjects

Mithat Haliloglu

Publications and source records attributed to Mithat Haliloglu.

At least 19 recordsLinked to original sources
PubMed2006

Multidetector CT and MRI findings in periportal space pathologies.

Periportal region is an anatomic space around portal vein comprising hepatic artery, bile duct, nerves, lymphatics and a potential space. Periportal pathologies may involve any of these structures diffusely or focally with characteristic radiologic findings. Radiologic findings can be helpful in differential diagnosis of pathologies of periportal structures including periportal cavernomatous transformation, hepatic artery aneurysm, biliary diseases, neurofibromatosis, lymphoma, langerhans' cell histiocytosis, periportal fatty infiltration and other causes of periportal halo in adult and pediatric patients. Lobar/segmental intrahepatic involvement can be seen in neurofibromatosis, cavernomatous transformation, fatty infiltration and periportal edema. In this review, we discuss CT and MRI findings of periportal pathologies which can be in the form of diffuse or segmental/lobar involvement.

Humans↗
PubMed2006

Complex venous anomalies: magnetic resonance imaging findings in a 5-year-old boy.

We report magnetic resonance imaging (MRI) findings of a very unusual venous anomaly case. A 5-year-old boy who had surgical repair of coarctation of the thoracic aorta was referred to our department for evaluation of an enlarged venous structure anterior to the aorta, which had been noted during the surgery. Contrast enhanced dynamic MRI revealed partial anomalous pulmonary venous return to the left azygos vein, double inferior and superior vena cava with the left azygos continuation of the left superior vena cava. The recognition of venous anomalies allows correct planning of surgical and interventional procedures. MRI is a valuable imaging tool providing detailed anatomical information.

Azygos Vein↗
PubMed2006

MRCP diagnosis of Mirizzi syndrome in a paediatric patient: importance of T1-weighted gradient echo images for diagnosis.

We report a 15-year-old boy with Mirizzi syndrome diagnosed by MR cholangiopancreatography (MRCP). Respiratory-triggered 3D MRCP was performed during free breathing. An impacted gallstone was noted in the infundibulum; this was not visible on T2-weighted images, but was hyperintense on T1-weighted gradient-echo images. This case illustrates the utility of 3D MRCP with parallel imaging in paediatric patients and the importance of T1-weighted gradient-echo images for the diagnosis of impacted gallstones.

Adolescent↗
PubMed2006

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↗
PubMed2006

Infantile hepatic hemangioendothelioma with elevated serum alpha-fetoprotein.

Infantile hemangioendothelioma is the most common hepatic vascular tumor in infants less than 6 months of age, with a prevalence of 1%. Serum alpha-fetoprotein levels have been used as an important tumor marker for hepatoblastoma, hepatocellular carcinoma, and germ cell tumors. It is rarely elevated in hepatic hemangioendothelioma. The authors report an infant with a hepatic hemangioendothelioma associated with elevation of serum alpha-fetoprotein who was treated with corticosteroids. In young infants, a solitary hepatic mass and elevated serum AFP level may not always be associated with hepatoblastoma. Infantile hemangioendothelioma must be differentiated by MRI or other radiological techniques before performing invasive procedures.

Age Factors↗
PubMed2005

Childhood diffuse panbronchiolitis: a case report.

Diffuse panbronchiolitis (DPB) is a chronic, potentially life-threatening lower respiratory tract disease that is particularly common in Japanese people. If left untreated, it progresses to bronchiectasis, respiratory failure, and death. Lack of familiarity with DPB in the non-Far East may result in a failure to correctly diagnose and treat this disorder. We describe a child with DPB. We suggest that DPB is a sinopulmonary disease that is not exclusive to the Asian population and to adults. Its clinical and radiological features should be better known by pediatric pulmonary physicians.

Bronchiolitis↗
PubMed2005

Long-term results of single-session percutaneous drainage and ethanol sclerotherapy in simple renal cysts.

PURPOSE: To demonstrate the efficacy and long-term results of the single-session ethanol sclerotherapy in simple renal cysts. MATERIALS AND METHODS: Ninety-eight cysts in 97 patients (range: 18-76 years; mean age, 54 years) were included in the study. Indications were determined as flank pain in 74, hydronephrosis in 12, hypertension in 8, patient reassurance due to increasing cyst size in three patients. Mean follow-up period was 24.4 months. Procedures were performed with the guidance of fluoroscopy and ultrasonography at all times using 5-7 Fr pigtail catheters. After the cystogram that was obtained in all cases, 95% ethanol with a volume of 30-40% of the cyst volume was used as a sclerosing agent on an outpatient basis. Maximum volume of the injected ethanol was 200 ml. Follow-up examinations were performed 1, 3, 6 and 12 months after the procedure and once every year thereafter. RESULTS: Average cyst volume reduction was 93% at the end of the first year. The cysts disappeared completely in 17 (17.5%) patients. After the procedure, in 67 (90%) patients improvement in flank pain was noted. Sixty-one (82%) patients were free of pain and in 6 (8%) of them the pain decreased. Normotension was obtained in 7 (87.5%) of the 8 hypertensive patients and no hydronephrosis was detected in 10 (83.3%) of the 12 patients after the procedure. Second intervention was required in 2 (2%) patients due to recurrence of cysts and related symptoms. One (1%) patient had small retroperitoneal hematoma that resolved spontaneously and in another (1%) patient spontaneous hemorrhage was detected into the cyst 1 year after the procedure. No other complication was detected during the procedure and follow-up. CONCLUSION: Percutaneous treatment of simple renal cysts with single-session sclerotherapy is a safe, effective and minimally invasive procedure and can be used as an alternative to multiple-session sclerotherapy with comparable results. High volume, up to 200 ml ethanol can be used without adverse effects for large renal cysts.

Adolescent↗
PubMed2005

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↗
PubMed2004

Interrupted aortic arch in a neonate: multidetector CT diagnosis.

We report the usefulness of multidetector CT angiography (CTA) in the diagnosis of interrupted aorta of a neonate. CTA is useful for evaluating malformations of the aortic arch, particularly in cases that cannot undergo conventional angiography or in which detailed information cannot be provided by echocardiography.

Aorta, Thoracic↗
PubMed2004

Beneficial role of intravenous calcitriol on bone mineral density in children with severe secondary hyperparathyroidism.

OBJECTIVES: In this prospective study, the effect of calcitriol therapy on bone mineral density and osteopenia in patients with severe secondary hyperparathyroidism has been investigated. MATERIALS AND METHODS: The study was carried out on 24 chronic dialysis patients consisting of 13 boys and 11 girls, aged between 8-18 years. Patients were divided into 3 groups according to the severity of hyperparathyroidism and therapy regimens. Group I consisted of 5 patients with normal parathormon levels who did not receive calcitriol therapy. In group II and III, there were patients with secondary hyperparathyroidism. Group II consisted of 10 patients receiving oral calcitriol therapy. Group III consisted of 9 patients receiving intravenous (i.v.) calcitriol. Bone mineral density was measured by dual energy x-ray absorptiometry. Osteopenia was defined as a Z-score worse than -2. Bone mineral density was assessed as baseline and at the end of one year. RESULTS: A significant improvement was observed in Z-score in the group III whereas the mean value of Z-score tended to be worse in group I and it was not significantly different in group II from the initial values. The better Z-score in group III was associated with more effective stabilization of alkaline phosphatase level and bone specific alkaline phosphatases (BAP) concentrations. CONCLUSION: Significant improvement of Z-score in group III suggested the beneficial role in i.v. administration of calcitriol in chronic dialysis patients.

Administration, Oral↗
PubMed2004

MDCT angiography of the extremities in pediatric patients: initial experience.

OBJECTIVE: We studied the feasibility of extremity MDCT angiography in pediatric patients with congenital anomalies, an extremity mass, and a suspected arterial occlusion. CONCLUSION: In pediatric patients, MDCT angiography of the extremities with a short imaging time and a low dose of contrast material is feasible and can be used as a noninvasive alternative to conventional angiography.

Angiography↗
PubMed2003

CT virtual bronchoscopy in the evaluation of children with suspected foreign body aspiration.

OBJECTIVE: Computed tomography (CT) virtual bronchoscopy is a noninvasive technique that provides an internal view of trachea and major bronchi by three-dimensional reconstruction. The aim of this study was to investigate the usefulness of virtual bronchoscopy in the evaluation of suspected foreign body aspiration in children. MATERIALS AND METHODS: Twenty-three children (12 girls, 11 boys) with a mean age of 2.4 years (8 months-14 years) who were admitted to emergency room with a suspicion of foreign body aspiration were included in this study. Chest radiograms, spiral computed tomography scans and virtual bronchoscopy images were obtained. Then, rigid bronchoscopy was performed within 24 h. RESULTS: CT virtual bronchoscopy and conventional bronchoscopy revealed the location of the foreign body in seven patients. It was in the right main bronchus in four patients, in the right lower lobe bronchus in one patient, and in the left main bronchus in two patients. There was no discordance between two modalities. CT examination revealed hyperaeration of the ipsilateral lung in four patients, hyperaeration of the ipsilateral lung and mediastinal shift in one patient and bronchiectatic changes in one patient. CT detected no additional finding in one patient with a foreign body in the right main bronchus. In 10 of 16 patients without foreign body, CT examination demonstrated atelectasis, infiltration, peribronchial thickening, and paratracheal lymphadenpoathy. CONCLUSION: Helical CT scanning with virtual bronchoscopy should be performed in only selected cases with suspected foreign body aspiration. When the chest radiograph is normal and the clinical diagnosis suggests aspirated foreign body, helical CT and virtual bronchoscopy can be considered in order to avoid needless rigid bronchoscopy.

Adolescent↗
PubMed2003

Obstructive jaundice caused by primary choledochal hydatid cyst mimicking radiologically choledochal cyst.

A 12-year-old girl with obstructive jaundice that was initially misinterpreted radiologically as having choledochal cyst is presented. A primary hydatid cyst in the wall of the common bile duct causing obstruction was found at operation. The authors emphasize that hydatid cyst should be included in the list of differential diagnoses of obstructive jaundice and cystic lesions located around the biliopancreatic junction in children.

Anastomosis, Roux-en-Y↗
PubMed2002

Hepatobiliary manifestations of cystic fibrosis in children: correlation of CT and US findings.

MATERIAL AND METHODS: Abdominal US and CT scans of 50 pediatric cystic fibrosis (CF) patients were evaluated to search for specific data that can be attributed to the involvement of the hepatobiliary system. The liver findings of the two patients who were HBs antigen carriers were excluded from the study. RESULTS: 30 out of 48 patients had at least one abnormal finding of liver on CT and/or US. Although increased echogenicity of the liver was detected in 24 of 48 patients (50%), only six of these (12%) were regarded as steatosis according to CT criteria of low attenuation values. CT and US scans both showed unique multilobular fatty pattern, described as "pseudomasses" in three patients. Increased periportal echogenicity was seen in 18 (37%) patients on US, while CT could not demonstrate any sign of increased periportal thickness. Findings of cirrhosis were present in five patients with either modalities. Lymph nodes of less than 10-15 mm in diameter were detected at the hepatico-duodenal ligament in 18 (37%) patients. Anomalies of the gallbladder (absence or microgallbladder or stone) were detected in 12 cases (24%). CONCLUSION: Although US is the most widely used modality in CF patients, CT and US correlation will help to better delineate the abnormalities between steatosis and periportal fibrosis and increase the sensitivity of the imaging methods to achieve the most accurate diagnosis.

Adolescent↗