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Biomedical subjects

G Ricciardi

Publications and source records attributed to G Ricciardi.

At least 19 recordsLinked to original sources
PubMed1991

[Thymoma: anatomo-clinical and therapeutic aspects. Analysis of our 26 cases].

The paper reports the authors' personal experience with regard to 26 cases of thymoma treated surgically over the past 10 years. 96% of cases were associated with myasthenia gravis. Surgery was performed in all cases and 13 cases (50%) underwent additional RT. 92% of patients were affected by invasive thymoma (11 stage II cases, and 13 stage III). From an histological point of view, 38.5% of cases were epithelial-type thymomas, 38.5% were lymphoepithelial and 23% were lymphocytic. Survival was influenced by the stage of disease and the radicality of surgery. At present, 76% of patients are still alive between 10 months and 10 years of surgery. There was a perioperative mortality of 11.5% (3 cases), whereas 2 patients died some 2 months later due to pulmonary embolism. The paper also includes a critical review of the most recent literature, and the authors compare their experience with that of other centres.

Adult↗
PubMed1991

Bilateral renal cell carcinoma with caval invasion in a woman with duplicated inferior vena cava.

Workup of a woman presenting with a palpable right flank mass, detected bilateral renal solid lesions, later proved to be renal cell carcinomas, and caval invasion in the presence of duplicated inferior vena cava. This association does not appear to have been previously described. The patient underwent right radical nephrectomy, cavotomy and auriculotomy with caval thrombus removal and delayed enucleation of left renal masses and left adrenalectomy. Eighteen months after surgery the patient is alive and without local and distant recurrence.

Adult↗
PubMed1977

Modulation of the Root effect in goldfish by ATP and GTP.

Both ATP and GTP are present in considerable amounts in red cells of the common goldfish Carassius auratus. They both influence the Root effect of the single major fish hemoglobin, but GTP is, depending on pH, 2-6 times more effective than ATP. The two triphosphates account for 3/4 of the effect of trichloroacetic acid supernatant obtained from hemolysate which contains still some compound(s) which can influence the shift of the Root effect toward higher pH.

Adenosine Triphosphate↗
PubMedDate not supplied

[The use of intra-arterial lipiodol in assessing hepatocarcinomas treated by percutaneous alcoholization. The initial experience].

Eight patients with inoperable hepatocellular carcinoma were treated by means of percutaneous alcoholization of the malignancy (11 nodular lesions less than 5 cm O). Upon treatment completion they were all given intraarterial injection of lipiodol, which was followed, a week later, by a CT scan. At angiography, during the parenchymal phase, 7 of 11 nodules appeared as avascular areas, whereas in the remaining 4 cases an intense parenchymal effect was seen within the previously treated areas. Lipiodol CT scans revealed intense uptake of oily material in the 4 hypervascular lesions as well as in 1 of those with avascular appearance. In 4 lesions, pathology of bioptic specimens obtained from the areas with contrast pooling was consistent with the persistence of viable neoplastic tissue. In these patients alcoholization had therefore to be continued. Lipiodol accumulation within previously treated nodules has proved to be related to the presence of residual neoplasm. Moreover, in 2 cases, focal retention of lipiodol was very helpful for biopsy under CT guidance. According to our experience, we believe lipiodol administration followed by CT to be very useful in evaluating and staging HCCs. We nevertheless believe that the procedure should be performed only after alcoholization has been completed: this would inform us of treatment effectiveness and subsequently enable us to decide whether treatment can be discontinued.

Angiography, Digital Subtraction↗