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J Eiras Ajuria

Publications and source records attributed to J Eiras Ajuria.

10 recordsLinked to original sources
PubMed1991

[Endoscopic treatment of intracranial lesions. Apropos of 8 cases].

The authors describe their initial experience involving endoscopic techniques used in the treatment of eight patients with varied brain lesions. Two tumours and a colloid cyst of the third ventricle, two paraventricular symptomatic cysts, one arachnoid cyst, one chronic intracerebral hematoma and one case of free catheter extraction in the lateral ventricle. The common characteristics of all these lesions were their liquid character and/or intraventricular location. Rigid endoscopes were used, with 9 and 6 mm work channels and independent aspiration and irrigation systems. The optic elbow makes direct visualization and adaptation to the TV monitor possible. The endoscope was manually directed at the lesion through a 12 mm burr hole in five cases and by means of a stereotactic frame in three cases. Biopsies were obtained in six cases. In three cases a communication between the cyst and the ventricular system or adjacent cisterns was established and in two cases vaporization of the lesion using a CO2 laser was performed. Tolerance to the endoscopic procedures was good in all cases. In the authors' opinion, endoscopic techniques constitute a low risk method, midway between stereotactic techniques and the microsurgical approach, and are especially indicated in the treatment of cystic brain lesions or those situated in or near the ventricular system. Their most notable advantages are: providing direct visualization of the lesion without interference from the instruments in the operating field; non-repercussion of the spatial changes derived from the liquid outlet and possibility of lesion coagulation and manipulation. Their disadvantages, related to the use of very long instruments and from a reduced work channel, must be overcome by specialized training.

Adult↗
PubMed1987

[Spontaneous regression of an aneurysmal bone cyst of the vertebrae after partial excision. Bibliographic review].

A case of a lumbar aneurysmal bone cyst is presented in a 5 year-9 month old girl. The characteristics of this tumor are described, specifically in the spinal area, with particular reference to the diagnostic and therapeutic difficulties referred, taking into account the existing bibliography. The partial resection has been curative, as it has been frequently written about in publication worldwide and which suggest that surgery does not have to be aggressive in unapproachable cases and that radiotherapy is unnecessary.

Adult↗
PubMed1983

[Cerebral metastasis, idiopathic pneumoperitoneum and obstructive jaundice as clinical manifestations of carcinoma of the pancreas].

A case of undifferentiated pancreatic carcinoma is described. The first symptoms were due to brain metastases and was then diagnosed as malignant glioma. The appearance of a sudden obstructive jaundice and pneumoperitoneum without any apparent cause led to the diagnosis of undifferentiated pancreatic carcinoma and peritoneal carcinomatosis, that was confirmed by the anatomicopathological study.

Adenocarcinoma↗
PubMedDate not supplied

[The role of video-nystagmography in the diagnosis of acoustic neuroma].

AIM: Schwannoma of the vestibular nerve represents 75% of all expansive processes affecting the pontocerebellosum angle. Hearing loss is the most frequent symptom at diagnosis (86%) with or without tinnitus, in the intracanalicular tumors. Vestibular symptoms are described in 60% of patients. MATERIAL AND METHOD: We study twenty cases of acoustic neuromas diagnosed between years 2000 and 2002 in both Otolaryngology and Neurosurgery Departments in our hospital. Videonystagmography (VNG) was performed in all of them. Videonystagmographic findings were analyzed statistically together with the tumoral size and hypoacusia level. DISCUSSION AND CONCLUSION: According to the medical literature reviewed for this paper, we conclude that caloric tests are the most frequently altered ones (77%), showing vestibular hyporreflexia or arreflexia.

Adolescent↗
PubMedDate not supplied

[Cervical chordoma].

Chordoma is an uncommon neoplasia with very aggressive behavior and very high local recurrence rate. It remains a difficult problem for the surgeon. A case of cervical chordoma in a 30 years old woman is reported. The patient had a retropharyngeal mass and changes in the quality of speech. A transoral approach was used to obtain complete removal. The biological, clinical and diagnostic characteristic of cervical chordomas are reviewed.

Adult↗
PubMedDate not supplied

[Cerebral cavernous angiomas in pregnancy. Two cases and a review of literature].

Whether pregnancy increases the risk of bleeding of cavernous angioma, as it does with other types of cerebral vascular malformation, is not known at present. We monitored the pregnancies of two patients with cerebral cavernous angiomas. One patient, whose long-standing epilepsy had until then been considered cryptogenic, with seizure occurring every 3 to 5 years, remained asymptomatic throughout her pregnancy which ended in spontaneous abortion. The parietal cavernous angioma was partially calcified and the tissue showed signs of earlier hemorrhage. The first symptom in the second patient was first-trimester hemorrhage from inside and around the angioma which was located in the optic chiasm. The lesion was fully excised in both patients. We review the literature and analyze the mechanisms that may be implicated in the clinical presentation during pregnancy of this type of cerebral vascular malformation.

Adult↗
PubMedDate not supplied

[Report of a case of pneumocephalus secondary to otologic surgery].

Non-traumatic pneumocephalus of otic etiology, secondary to colesteatoma or the otologic surgery is extremely rare, and very few cases are described in the worldwide literature. The existence of air in the intracranial spaces/tracts is known as pneumocephalus. Symptoms are due to the increased intracranial pressure, therefore, a differential diagnosis should be made in order to rule out other expansive processes. Surgical treatment, with closure of the existing fistula, is conclusive. We present a case of tension pneumocephalus secondary to otologic surgery and review the literature existing on the topic.

Chronic Disease↗
PubMedDate not supplied

[Congenital cholesteatoma of the petrous process and mastoid: a report of two cases].

Congenital cholesteatoma are unusual. They may arise in different sites of the temporal bone: petrous process, middle ear and mastoid. Primary cholesteatomas originate from embryonary ectodermal inclusions but the pathogenesis is not clear and many different hypotheses regarding its origin have been suggested. The clinical diagnosis is not easy if the tympanic membrane is normal, and computerized tomography and magnetic resonance imaging are useful. We report two cases of congenital cholesteatoma: One located in the petrous process and the other in the mastoid without affection of the tympanic cavity.

Cholesteatoma↗