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Biomedical subjects

P Corlieu

Publications and source records attributed to P Corlieu.

27 records · Page 2Linked to original sources

Osteoradionecrosis of the hyoid bone: a report of 3 cases.

PURPOSE: Osteonecrosis of the hyoid bone is an uncommon disease that has only been described occasionally in the literature. MATERIALS AND METHODS: We report 3 cases of osteonecrosis of the hyoid bone after radiation therapy for carcinoma at various sites in the head and neck region. RESULTS: Imaging computed tomography (CT) scans were performed for all 3 cases and did aid in the diagnosis. In 1 case, a 201thallium scintigraphy and a bone scan (99mtechnetium-diphosphonate) were performed and this confirmed the diagnosis of osteoradionecrosis. CONCLUSION: Osteoradionecrosis of the hyoid bone may be misdiagnosed as recurrent neoplasm. Although recurrent or persistent neoplastic disease must initially be ruled out, it is subsequently important to correctly identify osteonecrosis of the hyoid bone, because its surgical treatment is simple and the prognosis is good.

Adult↗

[Opaque meato-cisternography in study of atypical or incomplete syndromes of cerebellopontile angle (value for diagnosis and early treatment of neurilemmoma of the 8)].

It is well-known today that there is a cisternal "no man's land" between the petrous bone and the cerebral trunk in which a tumour can develop insidiously. The clinical signs are very variable and often in contradiction with those described for larger tumours. Tomodensimetry is indicated, but it is not conclusive if the mass is limited to the internal auditory canal or if it extends into the angle for less than 15 mm. Opaque meato-cisternography alone, gives the following information: 1. When a pseudo-tumoural syndrome is present, the auditory canal and cisterna are well opacified. 2. If there is a tumour which extends for more than 20 mm into the cisterna, the oil has a rounded, interrupted contour, and other radiological examinations are useful in this case. 3. When the tumour extends for less than 20 mm into the angle a rounded continuous contour is seen, and Hirtz's axial incidence can be used to measure the tumour diameter. 4. Finally, when temporary opacification faults have been eliminated (after retilting), opaque meato-cisternography is the only examination able to demonstrate the early stages of a tumour, in the intra-canal stage. This early diagnostic procedure has enabled one of us to excise tumours of moderate of even very small volume, under the best surgical conditions, and with functional and vital results which we would not have obtained at a later date.

Cerebellar Neoplasms↗

[The origin of acoustic neurionoma. An ultrastructural study of operated neurinoma incipiens (author's transl)].

The origin of eighth nerve neurinoma has been studied by several authors with the light microscope, particularly on serial sections of decalcified temporal bone. The microsurgical approach of small neurinomas has led the present authors to an ultrastructural study of this problem. In the cases in which the origin could be seen, the tumor appeared to arise from the ganglion vestibulare (Scarpae). This fact is correlated with the neural crest origin of the ganglion, and with its ultrastructural characteristics in the normal human.

Humans↗

[Tomodensitometry and/or meato-isternography in the diagnosis of small acoustic neuromas (author's transl)].

Tomodensitometry allowed us to discover smaller and smaller tumors in the cistern and even in the internal auditory canal. We report 5 cases, amongst others, where the tumor is visible in the canal and we show the conditions which are necessary to make the diagnosis. Nevertheless, lipiode meatocisternography is well tolerated if we use between 0.6 and 1.5 ml of oil, and often necessary to confirm the diagnosis of a neuroma. We first use tomodensitometry when the symptoms could be due to a neuroma or another tumor. When the syndrome is characteristic, limited to the contents of the internal auditory canal, we often do the meatocisternography straight away, because in a single examination we know that there is or is not a tumor. We can also check the same time the opposite side.

Absorptiometry, Photon↗

[Mondini's syndrome. Recurrent meningitis. Surgical cure (author's transl)].

The authors report 3 cases of meningitis in children. In every case of meningitis, and furthermore in recurrent in cases of meningitis, it is essential to examine not only the eardrum but also hearing and, when there is a deafness, tomographic shots should be taken of the labyrinth to look for a malformation of the internal auditory canal or the cochlea so as to detect the portal of entry for the infection and to be able to close it surgically.

Child↗