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Biomedical subjects

J Piton

Publications and source records attributed to J Piton.

At least 19 recordsLinked to original sources

[Apropos of a large parapharyngeal tumor. Imaging and surgery].

Based on the observation of a voluminous neurinoma of the carotid groove and of the posterior subparotid space, the authors highlight the wide range of parapharyngeal tumors and develop the anatomical bases which shed light on the clinical picture and guide the surgeon. The surgical indication must be put forth cautiously, taking into account the evolutive character of the tumor, the dangers it implies particular in Recklinghausen's disease. Modern radiology plays a major role in the diagnosis and treatment by perfectly visualizing the tumor, its vascularization and its relations with the walls and contents of the parapharyngeal spaces. It will supply indispensable information for directing the coordination between the ENT specialist, the vascular surgeon and the neurosurgeon.

Adolescent↗

[Magnetic resonance imaging in the diagnosis of an intraspinal arteriovenous malformation in a child].

A case of arteriovenous malformation of the spinal canal in a 8 year-old girl is reported. This child complained of night abdominal pain for several months, without diagnosis. Plain X-ray showed an enlargement of the lumbar spinal canal. Magnetic resonance imaging diagnosed a spinal vascular malformation, which was confirmed by angiography. Interest of MRI in such a case is emphasized.

Arteriovenous Malformations↗

Dural fistulas of the cavernous sinus. A report of 5 cases.

Five cases of dural fistulas of the cavernous sinus are reported. The clinical aspect of this lesion is often misleading in the absence of subjective or objective bruits. The diagnosis is made at angiography which should systematically include the internal and external carotid arteries bilaterally. The goal of this study was to elucidate the great variability of the venous drainage and to correlate it with the clinical symptoms and course. The main problem is to know when and how these fistulas should be treated. Vascular ligatures should not be performed. Therapeutic angiography is the treatment of choice, but should be limited to the following indications: poorly tolerated bruits, severe ophthalmic damage (elevated ocular tension, diminished visual acuity, or oculomotor paralysis), angiographically demonstrated massive arteriovenous shunting, and a high degree of cortical venous reflux. Whatever the indication, the course after embolisation is rarely predictable and in particular the risk of extensive venous thrombosis or recurrence is great.

Aged↗

Vascular malformations of the mandible (intraosseous haemangiomas). The importance of preoperative embolization. A study of 9 cases.

Haemangiomas of the mandible are relatively rare arteriovenous malformations: 85 cases have been described since 1849. The severe risk of bleeding during tooth extraction or biopsy led us to describe the radiological and angiographic features of this condition. The afferent vessels are the inferior dental, the lingual, and the facial arteries. Preoperative embolization reduces the risk of bleeding at operation. Surgical treatment must assure the complete removal of the lesion. Radiotherapy and vascular ligatures are useless and dangerous.

Adolescent↗