Gastric bleeding complicating esophageal intubation with a Carden's tube.
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Esophagogastric Junction↗
Biomedical subjects
P Halimi
Publications and source records attributed to P Halimi.
Post-traumatic diabetes insipidus: MR demonstration of pituitary stalk rupture.
We report the magnetic resonance findings in a case of post-traumatic diabetes insipidus (DI). They consisted of pituitary stalk rupture shown on both coronal and sagittal planes with associated disappearance of the normal high signal intensity of the posterior lobe on T1 images. This last sign, previously described in nontraumatic DI, appears to represent a finding indicating nonfunctioning neurohypophysis.
Adult↗
Cystic schwannoma mimicking a brain stem tumor: MR features.
A case of cystic schwannoma that presented as an intraaxial lesion on CT is reported. Magnetic resonance was able to detect the extraaxial origin of the tumor.
Accessory Nerve↗
MRI in chronic progressive radiation myelopathy.
OBJECTIVE: Our goal was to assess medullary lesions in patients suffering from chronic progressive radiation myelopathy (CPRM) using MRI. MATERIALS AND METHODS: In a group of 10 patients suffering from CPRM, MRI findings (11 examinations), radiation protocols, and patient prognoses were reviewed. RESULTS: A cord enlargement was demonstrated in five cases, whereas four cases presented with medullary atrophy. As demonstrated by MRI, radiation-induced medullary lesions progressed toward cord atrophy in one patient. When MRI and/or comparison myelogram were performed within 8 months following the onset of the myelopathy, a cord enlargement was usually encountered. When the patient was evaluated > 8 months after the first neurological symptoms, a cord atrophy was always demonstrated. Medullary lesions extended beyond the boundaries of the radiation field in 67% of the cases. However, with the exception of one case, the main focus of the cord damage was included within an irradiated cord segment. An enlarged cord was often associated with a neurologic deterioration and a fatal outcome. In patients with cord atrophy, the neurologic deficit was often static and survival rates were better. CONCLUSION: These results suggest a revision of classic criteria used for the diagnosis of CPRM. By demonstrating cord lesions, MRI helps to establish disease prognosis.
Adolescent↗
Follow-up study of severe slipped capital femoral epiphysis treated with Dunn's osteotomy.
This study evaluated long-term clinical and radiologic results of Dunn's osteotomy carried out in 50 consecutive cases for severe slipped capital femoral epiphysis. The results of all the patients were analyzed with 4 years 6 months of follow-up. The clinical results were very good and good in 90% of the patients and were fair or poor in 10% of the patients. Seven patients had an important complication (total necrosis or chondrolysis), and the clinical evolution was studied. Dunn's procedure seems to be adequate to correct severe slips.
Adolescent↗
Normal laryngeal CT findings after supracricoid partial laryngectomy.
BACKGROUND AND PURPOSE: Supracricoid horizontal partial laryngectomy (SCPL) is increasingly used to treat endolaryngeal carcinoma. However, few radiologic reports of these procedures exist. Our purpose was to evaluate the normal CT appearance of the neolarynx after surgery. METHODS: SCPL includes cricohyoidopexy (CHP), cricohyoidoepiglottopexy (CHEP), and tracheocricohyoidoepiglottopexy (TCHEP). We examined CT scans obtained from 18 patients without local superficial recurrence who underwent SCPL: 10, CHEP; seven, CHP; and one, TCHEP. Three reference sections were used to analyze the main surgical reconstruction: an upper section through the hyoid bone, a lower section through the cricoid cartilage, and a middle section in between. The distance between the hyoid bone and cricoid cartilage was measured. RESULTS: The epiglottis and valleculae were visible in the upper section in seven of 10 patients who underwent CHEP; this finding allowed distinction between CHEP and CHP. The arytenoids were depicted in 13 of 18 cases and reflected neolaryngeal shortening. The lower section showed the empty cricoid lumen lined by a thin mucosa; the anterior arch of the cricoid was amputated at TCHEP. The middle section showed the neovestibule, the lateral boundaries of which were the hypertrophic neoaryepiglottic folds; the anterior limit was the epiglottis for CHEP or the base of the tongue for CHP. The average distance between the hyoid bone and cricoid cartilage was 11 mm. CONCLUSION: Normal CT anatomy of the larynx after SCPL is defined. Three key sections may accurately distinguish the various types of SCPL. CT is a valuable tool for depicting tumor recurrence, especially when the tumor is submucosal.
Aged↗
Ventriculus terminalis of the conus medullaris: MR imaging in four patients with congenital dilatation.
MR findings in four patients with MR evidence of congenital cystic dilatation of the ventriculus terminalis were reviewed retrospectively. The ventriculus terminalis is a small cavity of the conus medullaris that forms during embryonic development as result of canalization and retrogressive differentiation. The dilated ventriculus terminalis appears on MR images as a small ovoid cavity with regular margination; intralesional fluid resembles cerebrospinal fluid on all MR sequences. After injection of contrast material, MR imaging shows no enhancement of the cyst or its wall, and thus differentiates congenital dilatation of the ventriculus terminalis from cystic tumors, which occur more frequently in this region.
Adult↗
[Ante- and posthypophyseal insufficiency with infundibulum abnormalities].
The hypopituitarism and the diabetes insipidus are often idiopathic. A retrospective study of 6 cases of diabetes insipidus and 8 cases of partial or total idiopathic antehypophyseal insufficiency has shown the value of MRI to demonstrate anomalies of the infundibulum or hypothalamic-hypophysis "stages". MRI allows to bring together some cases of idiopathic hypopituitarism in a new entity which is the hypopituitarism due to a newborn section of the infundibulum.
Adult↗
[Comparative study of Hexabrix and Lipiodol UF in sialography].
Many new lipid- and water-soluble contrast media can be used in sialography, the three main criteria of choice being the cost, the quality of filling, particularly of the parenchyma, and its evacuation and clinical tolerance. Duroliopaque possesses very similar physicochemical properties to those of Lipiodol UF, but a sufficiently satisfactory filling of the parenchyma is not obtained. Comparison of Lipiodol UF and Hexabrix in parotid and submaxillary contrast imaging showed good clinical tolerance for both products, but improved parenchymatous filling with Lipiodol UF. However, the more effective glandular evacuation with Hexabrix makes this the product most suitable at the present time for morphologic exploration of salivary glands.
Contrast Media↗
[Vertebral artery loop and cervical pain].
Diagnosis of a vertebral artery loop in the transverse canal, suggested by a CT scan image, is dependent mainly on results of angiography (preferably computer assisted and by the venous route). This lesion is a differential diagnosis of a neuroma, when the cervical intervertebral foramen is enlarged.
Adult↗
[Role of computed tomography in the diagnosis of complications of lumbar disk surgery].
Recurrence of symptomatology after diskectomy was investigated in 37 patients by computed tomography imaging. Local complications were mainly fibrous scar tissue formation and recurrence of disk lesions. Results showed the CT scan to be the most reliable exploratory procedure available at the present time, based on the quality of images obtained after intravenous iodized contrast injection.
Adult↗
[Radiology of plicae synovialis].
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Humans↗
The aryepiglottic fold as a rare location of adenoid cystic carcinoma.
We report one case of a mass in the aryepiglottic fold seen on CT, which proved to be an adenoid cystic carcinoma. There was nothing specific about the imaging characteristics that would allow it to be confidentially differentiated from squamous cell carcinoma.
Carcinoma, Adenoid Cystic↗