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Biomedical subjects

J Tongio

Publications and source records attributed to J Tongio.

At least 19 recordsLinked to original sources
PubMed1992

MRI of aggressive meningiomas.

The authors have attempted to establish by MRI morphological criteria for the so-called "aggressive" intracranial meningiomas. The MRI features of 20 meningiomas histologically aggressive (numerous mitoses and small necrotic foci) or malignant (same plus invasion of the subjacent brain tissue) were compared with those of a control population of 26 patients with benign meningioma. The site of the tumour and its histological type had little predictive value, but there was a remarkably high proportion of male patients in the group with aggressive meningioma (9/20 versus 2/26). More than other varieties, aggressive meningiomas frequently emitted, on both T1- and T2-weighted sequences, a heterogeneous signal due to a necrotic focus (P less than 0.01). The high-intensity signal observed on T2-weighted sequences (11/20) was suggestive of syncitial or angioblastic meningioma. Cystic meningiomas were present in virtually equal proportions (3/20 versus 3/26) in the two populations and could raise problems concerning the diagnosis of nature, especially when intraventricular. Gadolinium injection provided further evidence of aggressiveness, such as irregular tumour outline or even contrast enhancement of brain tissue in malignant cases (3/4), but enhancement of the dura mater was equally frequent in both groups (P greater than 0.2). Massive peritumoral oedema was significantly more frequent in aggressive melanomas (P less than 0.01).

Adolescent↗
PubMed1988

[Detection of recent myocardial infarction by spin-echo MRI. Value of the third echo].

Seventeen patients underwent MRI spin-echo imaging (Magniscan 5000) 7 to 21 days after acute myocardial infarction (10 anterior, 7 inferior--average 13.1 +/- 3.7 days). The success rate of visualisation of AMI evaluated independently by a qualitative score (from 0 to 4) based on the brilliance of the myocardial signal after taking steps to eliminate the brillance of pericardial fat and subendocardial flow signals, was 3.1 +/- 0.87 in anterior AMI (10 out of 10) and 1.28 +/- 1.25 (4 out of 7) in inferior AMI (p less than 0.007). The diagnostic sensitivity was increased when images of the third echo were used (13 out of 17) compared to those of the second echo (8 out of 17, p less than 0.016). The value of the 3rd echo is explained and emphasised. Abnormal intramyocardial signals were not recorded in a control group of 10 patients under similar conditions of multi-echo imaging. Finally, significant correlations were observed between peak CPK concentrations and the MRI score (r = 0.62; p less than 0.01) and between peak CPK and the number of sections in which the hyperbrilliant signal was observed (r = 0.74; p less than 0.001): this may open the day to quantification of myocardial necrosis by MRI.

Adult↗
PubMed1986

Soft cervical disc herniations.

The authors report their findings in a series of 51 patients suffering from typical cervical radiculopathy. With the aid of the CT scanner and intravenous injection of a contrast medium, the quality and resolution of the resulting images allowed neurosurgical intervention in 42 patients in whom the symptomatology alone was not sufficiently informative to allow successful treatment. In most cases the CT images allowed an accurate diagnosis and revealed a free fragment that had torn the common posterior vertebra ligament.

Adult↗
PubMed1986

[Pheochromocytoma of the organ of Zuckerkandl].

The authors report the case of a pheochromocytoma of the organ of Zuckerkandl in a 46 year old man. The clinical presentation was severe paroxysmal hypertension; the tumour was located by arteriography, CT scanning, and by scintigraphy with iodine labelled benzylguanidine. The blood pressure returned to normal after surgery. The embryological, anatomical and physiological features of the organ of Zuckerkandl are reviewed: the authors discuss briefly the modern methods of diagnosis and localisation of the tumour.

Adrenal Gland Neoplasms↗
PubMed1985

[A case of pheochromocytoma with cardiac localization. Review of the literature].

In a 26-year old man who died post-operatively, post-mortem examination revealed the presence of a phaeochromocytoma located in the atrio-ventricular sulcus and involving the trunk and bifurcation branches of the left coronary artery. Pre-operative investigations, including whole-body computerized tomography, and exploratory laparotomy had failed to detect the tumour. In contrast with the case reported here, the 4 other cases previously published concerned intrapericardial phaeochromocytomas in contact with the posterior wall of the left atrium.

Adult↗
PubMed1976

[Phreno-celiac disease and merycism in adults].

In this paper are described two new examples of a peculiar semiological association of which the authors have already reported a case, and in which occured simultaneously a phreno-coeliac disease and merycism since childhood. Strong epigastric pains accompained the merycism. In these two cases, the compression of the coeliac trunk by the median arcuate ligament of the diaphragm was important; in one case existed besides a compressive stenosis of the superior mesenteric artery. After the surgical liberation of the coeliac artery and the peri-coeliac neurectomy in one case, all symptoms relieved. This good result persists after twelve months. Because of the rarity of the phreno-coeliac disease and of this type of merycism, the authors think that this association is not accidental, but the result of a new nosological association.

Adult↗
PubMed1976

[A critical study of arteriography of tumours of soft tissue of the extremities (author's transl)].

We feel that arteriography occupies at the present time an indispensable and irreplaceable role in the pre-therapeutic assessment of a soft tissue tumour of the extremities. It obviously cannot provide a definite diagnosis in all cases with regard to the benign or malignant nature of the lesion. However careful analysis of the various features of the images obtained, leading to a radiological classification of the tumour into one of three groups (LEVIN, WATSON and BALTAXE), makes possible, in groups I and III, to predict the nature with a high probability of accuracy. Only in type II (35% of our cases) is it impossible to make such a deduction. The value of arteriography is not limited to diagnosis. It also provides information on the extent and arterial supply of the tumour which are essential to the surgeon and which cannot be supplied by any other investigation.

Diagnosis, Differential↗