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F Gudinchet

Publications and source records attributed to F Gudinchet.

17 recordsLinked to original sources
PubMed1992

[The value of CT and MRI in the assessment of basal encephaloceles in children].

Basal cephaloceles of the child are rare pathologies which require accurate preoperative imaging work-up. The CT and MR studies of six children with surgically proven basal cephalocele were retrospectively reviewed to evaluate the role of CT and MR in the preoperative work-up of a basal cephalocele of the child. In five patients, MR allowed to define the nature and topography of the cephalocele, and allowed an accurate depiction of the optic tract, ante- and post-hypophysis and associated agenesis of corpus callosum when present. 3-D CT allowed in one case a more precise depiction of the basal bony defect. MRI allows in a non invasive and non ionising way the best depiction of herniating meninges, brain or ventricles as well as associated cerebral anomalies.

Child↗
PubMed1992

[Priapism: review of current knowledge and presentation of a diagnostic and therapeutic algorithm].

In medicine, priapism is defined as pathological state: a prolonged, generally painful erection not accompanied by sexual desire not ending with an ejaculation. Rare before 1980, priapism became more frequent after introduction of erection-inducing drugs by intracavernosal injections for treatment of impotence. Therefore, the medical practitioner can be faced with this problem, and the authors present with an algorithm the current diagnostic and therapeutic steps based on knowledge of pathology, physiopathology and etiology of this disease.

Algorithms↗
PubMed1992

[Magnetic resonance imaging of the normal and the pathological knee in the child].

The results of magnetic resonance imaging (MRI) studies performed on the knee region of 60 children including 20 normally growing subjects are reported. In healthy children, MRI permitted to study the normal maturation of bone marrow and cartilaginous structures. The patients studied had bone tumors (11 patients), rheumatoid arthritis (8 patients), lesions of traumatic origin (7 patients), osteochondritis (4 patients), vascular and tissular dysplasia (3 patients), osteomyelitis (3 patients) and soft-tissue tumors (3 patients). In all patients, MRI showed clinically relevant abnormalities that were not detected by conventional X-rays or physical examination. MRI offers the ability to study disorders of bone, bone marrow, cartilage, menisci and ligaments in a noninvasive way. MRI has replaced arthrography of the knee and is the examination of choice in pediatric patients.

Adolescent↗
PubMed1992

Magnetic resonance imaging of nontraumatic shoulder instability in children.

Nontraumatic shoulder instability is infrequent in children. We examined prospectively with high-field magnetic resonance imaging (MRI) 11 patients with this disorder, including 2 with Holt-Oram syndrome and 11 healthy control subjects. The MR findings in the glenohumeral joint in normally growing children are presented. Two patients with shoulder instability were considered as normal, one presented with type 2 (Zlatkin) labral lesions, three, type 3 and one, type 4 lesions. Close attention to the normal imaging patterns of the maturing glenohumeral joint is required to avoid pitfalls in the interpretation of the images.

Adolescent↗
PubMed1992

Is tomography of intervertebral disc calcification useful in children?

In the past ten years, we have found cervical intervertebral disc calcifications in three children on plain films of the cervical spine made because of cervical pain. In each case, we required further radiological investigations, antero-posterior and lateral linear tomography for two children and an axial computed tomography for one child. In each case, tomography revealed no supplementary useful information. On retrospect, we think that these examinations caused unnecessary irradiation and that they should only be carried out in the rare circumstances when disc calcification is associated with neurological symptoms.

Adolescent↗
PubMed1992

Cranial CT and MRI in malignant phenylketonuria.

Malignant phenylketonuria is a rare disease caused by a deficiency in dihydropteridine-reductase which induce a hyperphenylalaninemia and a deficiency of neurotransmitters such as 3,4,dihydroxyphenylalanine (DOPA) and 5 hydroxytryptophan. The case of a patient with malignant phenylketonuria (PKU) who underwent both CT and MR Imaging is reported. CT demonstrated the characteristic calcifications of the basal ganglia. MRI demonstrated areas of hypersignal on T1 images in the basal ganglia, subcortical frontal and occipital white matter and cortex probably corresponding to calcifications. The MR findings are not specific but could be useful in monitoring the diet and neurotransmitter substitution therapy.

Brain↗
PubMed1992

[X-ray computed tomography of the facial sinuses. Results in 198 patients with chronic sinusitis].

The CT studies of 198 consecutive patients with chronic sinusitis were reviewed retrospectively. CT was normal in 47 patients (23.7%). In 151 patients one or many cavities showed abnormalities. In 69 cases (34.9%), the lesions affected one or two sinuses, in 35 cases (17.7%) three to six cavities were abnormal, whereas in 47 cases (23.7%), more than six cavities were abnormal. In 87 cases (57.6%), lesions were observed both in large cavities and ethmoid cells, whereas they were selectively localized in large cavities in 55 cases (36.4%), or in ethmoid cells in 9 cases (6%). Abnormalities were observed in the maxillary sinus in 137 patients (69.2%), in the ethmoid in 96 patients (48.5%), in the frontal sinus in 51 patients (25.8%), and in the sphenoid sinus in 28 patients (14.1%). The most frequent abnormality was hypertrophic mucosa, which was visible in 275 cavities. These results were compared with date of the literature.

Adolescent↗
PubMed1992

[Cardiac rhabdomyomatosis and Bourneville's tuberous sclerosis in the fetus. Apropos of 2 cases].

Two cases of cardiac rhabdomyoma discovered fortuitously at foetal ultrasonography gave rise to no obstructive cardiac signs or arrhythmias either in the antenatal or postnatal periods. These multiple tumours often observed in Bourneville's tuberous sclerosis orientated the clinical investigations to the diagnosis of this disease from the outset. MRI demonstrated cortical tubers and subependymal nodules in both cases. A retinal hamartoma was present in one case. No renal involvement could be detected by ultrasonic examination. No neurological or cardiovascular symptoms appeared during follow-up (20 and 4 months after birth). Investigations in the parents were negative, these two cases being sporadic forms of Bourneville's tuberous sclerosis. The functional prognosis is related to the neurological outcome. Doppler echocardiography would appear to be the best method of following up cardiac rhabdomyomas, and enabled the demonstration of partial regression of the largest tumour in one of these two cases. Cardiac MRI is also an excellent diagnostic tool. As it is usually performed at the same time as cerebral MRI, essential in the follow-up of Bourneville's tuberous sclerosis, it does not represent additional discomfort to the patient.

Adult↗
PubMed1991

Diagnosis of anterior cervical spinal epidural abscess by US and MRI in a newborn.

A 10-day-old girl who initially presented with fever developed over five days a complete paresis of both upper arms and swallowing difficulty. After emergency drainage of a retropharyngeal abscess, cervical US demonstrated a cervical anterior epidural mass compressing the cord. MRI confirmed the diagnosis of spinal epidural abscess secondary to C4-C5 spondylodiscitis. Surgical removal of the abscess was followed by complete disappearance of the neurologic symptoms after six months of follow-up. This is the first case of spinal epidural abscess in a newborn to be diagnosed by US and MRI preoperatively. The advantages of these non-invasive imaging modalities are discussed, and compared to myelography.

Abscess↗
PubMed1991

Imaging of neonatal arterial thrombosis.

The case of a neonate who presented with symptoms of upper limb ischemia related to spontaneous multiple arterial and venous thromboses that were demonstrated by colour Doppler sonography and digital subtracted angiography is reported. The presentation of limb ischaemia at birth may be the warning sign of simultaneous cerebral infarction.

Angiography, Digital Subtraction↗
PubMed1989

MR imaging of the posterior hypophysis in children.

The posterior lobe of the pituitary gland was studied by MR imaging in 30 children without pituitary gland disease and compared with studies from a group of 13 children with central diabetes insipidus, including eight cases of primary diabetes insipidus and five cases of diabetes insipidus secondary to suprasellar tumors (four proved germinomas, one still unknown tumor). Two components in the sella turcica were identified in all 30 children without pituitary gland disease, and the posterior lobe was identified as a high-intensity structure on T1-weighted images. In all 13 patients with diabetes insipidus, the normal hyperintense signal of the posterior hypophysis was absent on T1-weighted images. Three patients with suprasellar tumors presented with a progressively enlarging pituitary stalk on follow-up. Our findings show that absence of the normal hyperintense signal of the posterior lobe is closely related to a loss of function of the neurohypophysis. Size or signal modification of the pituitary stalk should suggest the development of a suprasellar tumor.

Adolescent↗
PubMed1989

Echography of pulmonary sequestration.

Pulmonary sequestration is a rare congenital disorder in which a portion of normal lung tissue lacks normal connections with the tracheo-bronchial tree and the pulmonary arteries. We report on three cases of left lower lobe extrapleural sequestrations that have been studied with ultrasound since 1980. In the two more recent cases demonstration of the feeding vessel originating directly in the abdominal aorta by real-time ultrasound permitted very rapid non-invasive diagnosis of the malformation. We recommend that a search should be made for such an aberrant vessel with real-time ultrasound whenever a pulmonary sequestration is suspected.

Bronchopulmonary Sequestration↗
PubMedDate not supplied

Mesenteric panniculitis.

Mesenteric panniculitis is an inflammatory condition of mesenteric fat which may result in peritoneal space occupying lesions. Only two previously reported cases in the English literature have been evaluated by computed tomography (CT). We present 2 additional cases and emphasize that CT patterns are not specific, but suggest the diagnosis in the presence of a well-defined fibrous wall circumscribing a fatty mass containing regions with attenuation near that of water. Lymphoma and mesenteric metastases should be considered the most frequent radiologic, clinical and surgical differential diagnosis.

Aged↗