Double contrast MR imaging of hepatocellular carcinoma evaluating lesion detection and conspicuity.
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Adult↗
Biomedical subjects
M Eryilmaz
Publications and source records attributed to M Eryilmaz.
Intrapancreatic duodenal duplication cyst with inversion of the superior mesenteric vessels: CT findings.
We present a case of intrapancreatic duodenal duplication cyst and inversion of the superior mesenteric vessels. CT findings of this association are discussed.
Choristoma↗
MRI of intravascular leiomyomatosis extending to the heart.
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Fatal Outcome↗
Regional cerebral blood flow in schizophrenia before and after neuroleptic medication.
In order to investigate cerebral perfusion changes induced by neuroleptic drugs, we performed 99Tc(m) hexamethyl propyleneamine oxime (HMPAO) single-photon emission computed tomography (SPET). Fifteen patients (nine drug naive, six non-naive) diagnosed by using the DSM-III-R criteria, and 10 right-handed age and sex matched normal volunteers were included in this study. The SPET study was performed with 740 MBq 99Tc(m)-HMPAO by using a 128 x 128 matrix, 30 s/frame for a total 64 view over 360 degrees before and after 1 month of neuroleptic treatment. A semiquantitative method was used for the analysis. Patients were clinically assessed using the Brief Psychiatric Rating Scale (BPRS). There was no significant regional cerebral blood flow (rCBF) difference between the patient group and control group in whole-brain regions except in the left temporal lobe. Although clinical scores of the patients improved after neuroleptic treatment no statistically significant difference was found in the rCBF between pre- and post-treatment. Moreover, there was no statistically significant correlation between the rCBF and BPRS in any region. These results suggest that there was a discrepancy between the clinical situation and rCBF in schizophrenia and the lateralized temporal lobe blood flow, which may have important implications for the evaluation of patients with schizophrenia.
Adult↗
Diastematomyelia in two sisters.
Diastematomyelia is a rare spinal cord anomaly that usually occurs in a non-syndromal, sporadic manner; however, few familial cases have been reported. We report on diastematomyelia in 2 sisters with variable expressivity. The spinal column is divided by osseous or fibrous tissue. This may be responsible for the variable expressivity. Most cases previously reported were females. This suggests X-linked dominant inheritance with lethality in hemizygous males or female sex limitation of a multifactorial trait.
Adult↗
MRI of three siblings with Sjögren-Larsson syndrome.
Sjögren-Larsson syndrome (SLS) is a rare disorder with autosomal recessive inheritance. Its clinical, pathological, genetic, and biochemical manifestations have been thoroughly evaluated, but there is little imaging data, especially regarding MRI. We present brain MRI of three siblings with SLS and discuss our findings.
Brain↗
Histological and densitometric analysis of the effects of exogeneous heparin on rat pulp tissues.
In this study, the effects of heparin on dentinal resorption was investigated in rats. Animals were injected with 2 x 2 IU/g Na-Heparin subcutaneously for 33 days. Histopathological examination of the anterior teeth revealed capillary proliferation, congestion, and fibrosis in the pulp in addition to resorptive lacunae and degenerative bone spiculae in the peripheral bone tissue. Development of fibrosis in the pulp tissue was verified by densitometric analysis, which revealed a 30% increases in mean density after heparin administration. No resorption at all, however, was seen in dentin.
Animals↗
Robinow syndrome, vaginal atresia, hematocolpos, and extra middle finger.
A 14-year-old girl with Robinow syndrome was admitted with severe abdominal pain that had recurred periodically during the last 6 months. She had been followed by us since age 2 months and she had not experienced menarche yet; hematocolpos related to vaginal atresia was diagnosed. She underwent vaginoplasty with cervical construction. Genital system abnormalities are common in Robinow syndrome, but this kind of malformation has not been reported previously.
Abnormalities, Multiple↗
Multiple meningiomas of the central nervous system without the stigmata of neurofibromatosis. Clinical and therapeutic study.
Multiple meningiomas are relatively rare tumors without known neurofibromatosis. In this paper, such eight cases of multiple meningiomas as described by CUSHING and EISENHARDT are presented. Certain aspects of diagnosis and surgical management of this rare condition are discussed with particular emphasis on the importance of the distinction among multiple meningioma, meningiomatosis, or recurrences of these tumors. Fortunately, many of these patients tolerate multiple surgical interventions well, although the removal of these tumors in critical areas is a difficult problem. Thus, we think that it is important to examine and supervise all patients who have had a meningioma for a possible occurrence of a second meningioma.
Adult↗
A case of Carpenter syndrome diagnosed in a 20-week-old fetus with postmortem examination.
Carpenter syndrome (acrocephalopolysyndactyly type II) is an autosomal recessive syndrome. The case we present was diagnosed prenatally at 20 weeks. Postmortem examination revealed severe central nervous system malformations. The central nervous system anomalies in this 23-week-old fetus merit emphasis, since these anomalies in such a young fetus may explain Carpenter syndrome cases, which do not improve in spite of early surgical intervention.
Abortion, Spontaneous↗
Secondary multiple intracranial hydatid cysts caused by intracerebral embolism of cardiac echinococcosis: an exceptional case of hydatidosis. Case report.
The authors present an extremely rare case of secondary multiple cerebral echinococcosis caused by presumed intracerebral and arterial embolism of cardiac hydatidosis in a 7-year-old girl. The first manifestations were symptoms of raised intracranial pressure. Unfortunately, before the primary ruptured echinococcosis cyst was detected in the myocardium of the left ventricle, the patient underwent nine operations over an 8-year period for hydatid embolism affecting the brain and the femoral artery and was treated with concurrent mebendazole therapy. The combined therapy would not have been successful without removal of the intracardiac hydatid cyst. This case is unusual because of the multiplicity of intracranial hydatid cysts and its embolic origin from cardiac echinococcosis. The present case is believed to be the first one in which the development of an embolism in the brain was studied by magnetic resonance imaging.
Brain Diseases↗
Acquired torticollis as the only presenting symptom in children with posterior fossa tumors.
Acquired torticollis is a symptom of an underlying disorder. It requires a thorough, meticulous search for the cause, because some of the problems associated with torticollis, such as posterior fossa tumor, can be life-threatening.
Adolescent↗
Temporomandibular joint involvement in rheumatoid arthritis. Relationship with disease activity.
Involvement of temporomandibular joint (TMJ) in rheumatoid arthritis (RA) patients is described, but the incidence varies greatly. In this study our aim was to determine the frequency and character of TMJ involvement in RA patients asymptomatic for this joint, to investigate the relationship with disease activity, and to evaluate the early diagnostic value of imaging techniques. Twenty patients were included in this study, ten were evaluated with computed tomography (CT) and ten with magnetic resonance imaging (MRI). Among the 20 patients 45% had TMJ involvement detected by imaging techniques. The most frequent pathological signs were osteophyte formation, erosion of the mandibular condyle and decreased joint space (40%). Age, duration of disease, number of swollen joints. CRP and RF levels were found to be correlated with TMJ involvement. It is concluded that TMJ involvement may be detected even in asymptomatic patients with RA and there is a positive correlation between the severity of disease and involvement of TMJ.
Adult↗
Percutaneous treatment of abdominal hydatid cysts with hypertonic saline and alcohol. An experimental study in sheep.
RATIONALE AND OBJECTIVES: Seven naturally infected sheep with proper hepatic and peritoneal hydatid cysts were studied to assess a new percutaneous approach for cystic hydatid disease. METHODS: A needle was inserted into the cyst cavity of sheep under sonographic guidance. Immediately after instillation of hypertonic saline to inactivate protoscolices, ultrasound demonstrated that germinal and laminated membranes of the hydatid cysts were separated completely from the pericyst in all sheep. Later, a catheter was inserted into the cyst cavity using Seldinger technique. Alcohol was used as a sclerosing agent. RESULTS: Ultrasound showed reduction in cyst size and progressive solidification. No anaphylactic reaction was observed. After sonographic follow-up that lasted from 1 to 26 weeks, the sheep were killed to evaluate macroscopic and histologic changes. At autopsy, no secondary cyst formation was seen. The appearance of treated cysts was different from the others, and there were signs of involution. The histologic sections did not show any viable protoscolices or daughter cysts. The authors observed pericyst hyalinization, inflammatory cells in the cyst wall, cyst wall necrosis, calcification of cyst wall, degeneration of laminated membrane, severe degeneration or absence of germinal membrane, and inflammatory cells and necrotic material in the cyst cavity. CONCLUSIONS: Percutaneous treatment of hydatid disease was effective in the animal model. Ultrasound was useful in evaluating the intervention.
Animals↗
Budd-Chiari syndrome: analysis of 30 cases.
The authors report their experience with 30 adult patients with Budd-Chiari syndrome (BCS), which is a rare and serious disorder, characterized by hepatic outflow obstruction caused by many different conditions. The diagnosis was based on the clinical data, ultrasonography (US), vena cavography and hepatic venography, computed tomography (CT), and liver biopsy. Behçet's disease (BD) was found in 10 patients with BCS as an underlying disease. Two patients used oral contraceptive drugs, 2 had liver tumor hepatocellular carcinoma and liver lymphoma, and 1 patient had chronic lymphocytic leukemia. Despite full investigation, the authors could not find any obvious underlying cause in the other 15 patients. The results suggest that (1) BCS must be considered as a possible complication in patients with Behçet's disease when they have hepatomegaly even if there were no cardinal manifestations of the disease at the time of admission, and BD is the most common etiologic factor in BCS (33%) in Turkey, where the incidence of Behçet's disease is relatively high. (2) Anti-aggregant treatment seems to be effective in many instances. (3) There were space-occupying lesion-like appearances in the liver of 7 cases by CT and US examination in the acute stage, and these disappeared on the follow-up CT and US in 5 patients but continued in 2. BCS should thus be differentiated from other liver lesions. (4) There were other great-vessel involvements in 43% of the cases, mostly venous, but only 1 pulmonary arterial occlusion.
Adolescent↗
Malignant pleural mesothelioma caused by environmental exposure to asbestos or erionite in rural Turkey: CT findings in 84 patients.
OBJECTIVE: Malignant pleural mesothelioma in rural Turkey frequently results from environmental exposure to tremolite asbestos or fibrous zeolite (erionite). The aim of this study was to determine the CT features of malignant pleural mesothelioma in patients exposed to asbestos or erionite. MATERIALS AND METHODS: The CT scans of 84 patients with proved malignant pleural mesothelioma were retrospectively evaluated. Twenty patients (24%) had been exposed to erionite and 64 patients (76%) had been exposed to asbestos. The CT scans were interpreted by seven observers who did not know the clinical or pathologic findings. RESULTS: CT scans showed either unilateral pleural thickening or pleural nodules/masses in all patients. Pleural nodules were present in 25 patients (30%) and pleural masses in 44 patients (52%). Pleural effusion was found in 61 patients (73%), mediastinal pleural involvement in 78 (93%), pleural calcifications in 52 (62%), involvement of the interlobar fissures in 64 (76%), and volume contraction in 61 (73%). Reduced size of the hemithorax was significantly correlated with chest wall involvement. On the basis of CT findings, the preassigned staging was changed in 21 patients (25%), including 44% of the patients with disease that had been classified as stage I. CT findings were not significantly different between the patients exposed to erionite and those exposed to asbestos. CONCLUSION: The most common CT findings in cases of malignant pleural mesothelioma were unilateral pleural thickening or pleural nodules/masses with or without effusion. CT provided valuable information on the extent of the disease, which was important for staging. Although the CT features are not pathognomonic, they provide valuable clues to the diagnosis in patients who have been exposed to mineral fibers.
Adult↗
Autosomal recessive alobar holoprosencephaly with cyclops in three female sibs: prenatal ultrasonographic diagnosis at 18th week.
A couple who were first cousins were referred for genetic counselling because of a previous spontaneous abortion and two female stillbirths with cyclopia. In the 18th week of the mother's fifth pregnancy a holoprosencephalic fetus was diagnosed by ultrasonography. The pregnancy was terminated. Postmortem computed tomography and pathological examination revealed that the female fetus had alobar holoprosencephaly with cyclopia. Chromosomal analysis of the fetus was normal.
Abortion, Induced↗
Congenital lumbosacral lipomas presenting as a form of occult spinal dysraphism. A report of 9 surgically treated cases.
Nine cases of congenital lumbosacral lipoma have been diagnosed and treated surgically at the Hacettepe University School of Medicine, Department of Neurosurgery during the last 16 years. Five patients were male and four female with ages ranging from 18 months to 30 years. The most frequent complaints were mass in the back (in five cases), motor weakness in the lower extremities (in five), urinary incontinence (in five), and lumbosacral hypertrichosis (in five). On neurological examination, four patients had deep tendon reflex changes, five had motor changes and four were normal. There was significant improvement in seven cases. Two had no improvement. In this report, we review nine patients retrospectively, and discuss the surgical intervention and the results achieved.
Adolescent↗