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Biomedical subjects

R Gabriele

Publications and source records attributed to R Gabriele.

At least 19 recordsLinked to original sources
PubMed2004

The role of Echo Colour/Power Doppler and magnetic resonance in expansive parotid lesions.

The purpose of this research was to evaluate the role of Echo Colour/Power Doppler and Magnetic Resonance Imaging (MRI) in the diagnosis of expansive parotid lesions, and to establish criteria for differential diagnosis between benign and malignant forms. Forty nine patients (23 males and 26 females), aging from 30 to 85 years, with an expansive pathology of parotid gland were enrolled in our study from February 1999 through August 2004. Each patient was carefully assessed employing both ultrasonography integrated with Color/Power Doppler and MRI. Eventually, all patients received echo-guided needle-biopsy and surgical excision of the parotid lesion. Preliminary ultrasound assessed site, size, echoic appearance and margins of the lesion. In order to assess blood supply by means of Colour/Power Doppler, we divided the patients in four groups. Our MRI diagnostic criteria included site, size, intensity of signal, behaviour of the lesion after i.v. contrast, relationship with facial nerve and retromandibular vein, detection of margins and proximity to adjacent structures. On the basis of our results, the Authors concluded that both Echo Colour/Power Doppler and MRI play a very important role in the diagnosis and surgical planning of parotid gland lesions.

Adenoma↗
PubMed2000

[Benign schwannoma of the pelvic retroperitoneum. Report of a case and review of the literature].

Benign schwannoma is a tumor arising from Schwann cells (forming the neural sheath of peripheral nerves). The retroperitoneal location is unusual (0.5-5% of cases). Most common locations are cranial nerves (especially the 8th pair) and, in peripheral nerve system the neck, mediastinum and extremities. To this date the known cases of benign retroperitoneal schwannoma are about 60, of which less than 20 in the pelvis. The low frequency of this tumor and the lack of specific instrumental signs and objective symptoms (since it develops in a deep and broad region as retroperitoneum) make presurgical diagnosis very difficult. It can be confirmed only during surgery and definitive histological examination. The information provided by ultrasonography, CT and MR help to limit diagnostic hypothesis, but they don't show any pathognomonic images. The resection of this tumor is the appropriate treatment, even though it is really a complex one. Prognosis is quite good since post-surgical recurrences are unusual. If they appear is probably because excision wasn't radical. Complete resection is the best treatment for retroperitoneal pelvic schwannoma and today it can be performed also by laparoscopy. Partial resection can be used when the mass is strongly connected to essential organs in order to prevent iatrogenic harms (neural deficit, vessel lesions); this may occur in 10% of cases. This paper describes a benign schwannoma with pelvic retroperitoneal location, incidentally discovered during a routine gynecological check up. The purpose of this study is to review current therapeutic and diagnostic techniques in retroperitoneal pelvic schwannoma (including a review of current literature) and to identify th problems that can be encountered in the differential diagnosis of this unusual disease from other neoplasms occurring in the same place.

Female↗
PubMed1995

[Hürthle cell tumors: personal experience].

Hürthle cell tumors of the thyroid gland are uncommon lesions (3% of all well differentiated tumors). Histological diagnosis is often difficult: according to recent criteria only those tumors with almost 75% of oxyphil cells are well recognized as Hürthle cell neoplasms. Extracapsular and blood-vessels invasion, capsular penetration, DNA patterns and tumoral necrosis are indicative for malignancy. The Authors report their experience in the management of 46 patients who underwent thyroid surgery for Hürthle cell neoplasms. Histological findings, surgical approach and post-operative follow up are discussed.

Adenoma, Oxyphilic↗
PubMed1995

[Primary lymphoma of the rectum: diagnosis and treatment].

The authors report a rare case of primary rectal lymphoma non Hodgkin in a young non HIV infected man. Preoperative diagnostic problems, the standards for classification and staging and the proper treatment are briefly discussed. The importance of an accurate histological and immunohistochemical study on preoperative multiple biopsies for a correct diagnosis, staging and treatment, are emphasised in this report.

Adult↗
PubMed1995

[Adrenal cysts: therapeutic indications].

Adrenal cysts are relatively rare and usually discovered only if large and associated with clinical manifestations. Asymptomatic cysts are diagnosed with increasing frequency because of their incidental finding on ultrasonography or computed tomography, but surgical treatment is indicated when the cysts are large, symptomatic or rapidly expanding. A case of adrenal cyst is reported. The clinical, pathologic and therapeutic implications of this disease are briefly discussed.

Adrenal Gland Diseases↗
PubMed1994

[Palliative treatments in inoperable pancreatic tumors. Technics compared].

The authors experience of palliative treatment of advanced pancreatic cancer is reported. 32 patients underwent palliative surgical procedures of biliary decompression (20 choledochoduodenostomy and 12 cholecystoenteric bypass). In 26 patients a gastroenteric anastomosis was also performed. 8 patients underwent non surgical procedure because of their very poor conditions or short term survival. The authors point out the advantages offered by surgical treatment. Nevertheless a careful selection of patients submitted to this procedure is recommended.

Aged↗
PubMed1994

[Neurogenic tumors of the brachial plexus].

The Authors report two cases of solitary neurogenic tumors of the brachial plexus not associated with Von Recklinghausen's disease. Peripheral nerve tumors are relatively rare and only 25% occur above the clavicles. The mass, usually asymptomatic, may cause sensory radicular symptoms or rarely motor deficits in the involved arm. Wide radical excision of a benign neurogenic tumor is the treatment of choice; for malignant tumors, associated with a particularly poor prognosis, a more aggressive surgical approach may be necessary. Adjuvant radiation therapy and chemotherapy do not seem to have any effect on survival rates.

Adult↗
PubMed1993

[Identification and preservation of the parathyroid glands in thyroidectomy using methylene blue].

The risk to the parathyroids in thyroid surgery is widely known. Postoperative parathyroid insufficiency occurs because of accidental devascularization of one or several glands, or infarction due to manipulation, or resection within the thyroid lobe. The prevention of this complication requires a careful surgical technique which limits any injury of the parathyroids. A simple, safe and cheap method to improve the identification of these glands is the preoperative intravenous infusion of methylene blue, that results in a distinct staining of the parathyroids. The authors describe their experience with this useful procedure which helps to reduce the incidence of hypoparathyroidism after total and near total thyroidectomy.

Adolescent↗
PubMed1992

[Drainage in surgery on the thyroid].

The authors report their experience of 534 thyroid operations and underline the importance of neck drainage in this type of surgery. Drainage positioning is very important for the prevention and immediate indication of hemorrhaging complications. Some correct indications, like large goiters, hyperthyroidism, reoperation and the lack of vascular ligature, are considered and discussed.

Adolescent↗
PubMed1992

[The treatment of recurrent inguinal hernias by using Marlex mesh preperitoneally].

Several techniques are utilized in the treatment of inguinal hernia: each type of repair offers advantages, but a variable number of recurrences occurs regardless of the hernioplasty technique used. Treatment of hernial recurrence is a troublesome goal for surgeons. Nowadays, the use of prosthetic materials with a posterior surgical approach simplifies and resolves most of the problems encountered in the past. The authors report their experience with the use of Marlex mesh for hernia repair through a preperitoneal approach pointing out the advantages of such prosthetic material and of the surgical access as well. Finally, the importance of patients selection is stressed.

Adult↗
PubMed1991

[Parathyroid cysts].

The Authors review the world literature on parathyroid cysts and report a case of this uncommon disease. The importance of an early pre-operative diagnosis by ultrasound, blood calcium level and parathyroid hormone assay with fine needle aspiration biopsy is pointed out. According to several surgeons, only the functioning parathyroid cysts require operation; needle aspiration may be appropriate therapy for the nonfunctioning ones.

Adult↗
PubMed1989

[Varicose veins of the lower limbs caused by incompetence of the saphenous-femoral ostium: standard or complete stripping?].

The Authors report their experience of 256 stripping operations performed during the last 3 years for varicose veins of the lower extremities. Preoperative Doppler examination was used to detect reverse flow in the saphenous veins. Removal of the entire saphenous trunk was performed in 158 limbs with segmental or total reverse flow; in the remaining 98 cases with reflux only in the proximal tract of the saphenous vein a selective stripping operation and, five weeks later, phlebectomy of remaining varicosities were performed. The results were assessed by follow-up examination from 6 months to 3 years. When there is a specified indication, the selective stripping operation appears to be an excellent and aesthetic solution with a very low incidence of saphenous nerve's injuries. Useful advice to obtain the best results with the traditional stripping operation are also pointed out.

Female↗
PubMed1988

Papillary-cystic tumour of the pancreas. Case report.

A papillary-cystic pancreatic tumour was excised in a 19-year-old girl, who was apparently free from recurrence 20 months later. Despite morphologic indications of malignancy, the prognosis after surgical removal of this uncommon tumour is good. Its origin probably is the epithelial cells of the small pancreatic ducts. The case is described and the literature is reviewed.

Adult↗
PubMed1976

[Automation in analysis. VII. Automatic mineralization and determination of organic phosphorus].

An automatic manifold for the organic phosphorus mineralization is described. The device at issue does consist in an electrically heated aluminium blok, in which 80 holes are drilled, in order to hold 80 hydrolysis vials. The heating is automatically controlled by an independent unity. The ortophosphate determination is performed photometrically with the previously described automatic apparatus.

Autoanalysis↗