Embolization of the renal artery before graft nephrectomy: a comparing study to evaluate the possible benefits.

The graft nephrectomy is burdened by immunological and surgical complications. The main surgical complications of graft nephrectomy are hemorrhage, infections, vascular injury and death. The mortality is high, with percentages varying between 1.3 and 38%. Therefore, graft nephrectomy should be recommended only in selected cases. We conducted a retrospective study, comparing the data of 26 patients undergoing an allograft nephrectomy (2009-2013), without embolization of the renal artery (NO EMBO group) with the data of 40 patients undergoing an allograft nephrectomy (2014-2019), with embolization of the renal artery (EMBO group). We included only graft nephrectomies performed at least 6 months after transplantation. The patients included in the study were consecutive because until 2013 we did not perform the embolization of the renal graft artery. Afterwards, from 2014, instead, we routinely carry out embolization to all patients to be subjected to graft nephrectomy. We, therefore, wanted to analyze whether this surgical approach compared to the previous technique can lead to an improvement in morbidity and mortality, reducing the risk of bleeding and operating times. The examination of our data highlights that embolization of renal artery reduces the operating times of the explant, in addition the group subjected to embolization had less changes in hemoglobinemia and less blood loss.

Adenocarcinoma on horseshoe kidney studied with computed tomography.

Horseshoe kidney is a congenital anomaly of the upper urinary system frequently associated with atypical vascularization, mostly asymptomatic, usually undetected until the onset of infectious, obstructive or neoplastic complications. Although intravenous pyelography and US are useful tools, the role of CT is of vital importance especially in the pre-operative planning of related complications and in those cases where other techniques have correctly diagnosed the disease but have missed the visualization of an underlying malformation. We report here two cases of adenocarcinoma in two patients with a horseshoe kidney, where CT has clearly depicted both the malformation and the associated pathologic findings.

Subcutaneous metastasis of pancreatic cancer in the site of percutaneous biliary drainage.

A subcutaneous metastatic lesion from a carcinoma of the pancreas or common bile-duct along the tract of a percutaneous transhepatic biliary drainage is a rare finding. Prompted by a case that came to our observation by chance, we reviewed the literature and analysed the 29 cases collected. Neoplastic cell seeding along a percutaneous drainage tract, albeit rare, must be kept in mind. The complication can be avoided if patients at risk, whenever possible, undergo endoscopic drainage.

CT cystoscopy in the evaluation of bladder tumors.

The aim of the present study was to assess the role of virtual cystoscopy in the identification of bladder tumors. Fifteen patients (11 men and 4 women, median age: 61 years, range: 46-74 years) with a positive finding of bladder tumor at fiber-optic cystoscopy were studied by multislice-CT. Scans were downloaded to a workstation with the aid of a software for the processing of 3-D reconstructions, with a volume-rendering technique which allowed the "navigation" within the bladder in search of wall lesions. In this group of 15 patients, cystoscopy was able to detect 19 neoplastic lesions, 13 with a diameter >10 mm and 6 with a diameter <10 mm. Virtual cystoscopy, instead, identified 17 lesions (89%) only. In particular, all those lesions with a diameter >1 cm (13/13=100%) were correctly identified, whereas only 4 of the 6 lesions with a diameter <1 cm were depicted. The 2 false negative cases were 2 lesions with a flat morphology, measuring 5 and 6 mm. Most recent technological advances allowed the employement of virtual endoscopies, characterized by the absence of invasivity as compared with fiber-optic studies and based on data obtained by spiral- and multislice-CTs. According to our experience, virtual CT-cystoscopy revealed to be a complementary tool in the evaluation of cross-sectional images and proved to be an easy procedure without complications, well-accepted by the patients, and with a reliable detection of those bladder lesions measuring more than 5 mm in case of polypoid formations and at least 10 mm in case of flat lesions. This technique, however, does not allow the collection of a bioptic sample and--with the present resolution power of available equipments--it could be unable to correctly detect small-sized flat lesions. We, nonetheless, believe that this procedure, in the future, thanks to rapid technological improvements in virtual imaging techniques, could become a useful diagnostic tool in the management of those patients with bladder tumors. Further studies on larger study groups are therefore desirable for a more reliable validation of the technique.

Extraskeletal myxoid chondrosarcoma of the thoracic wall.

The authors report the CT features of a very rare case of Extraskeletal Myxoid Chondrosarcoma of the thoracic wall, one of a few malignant primary bone tumors which rarely originate from soft tissues.

The surgeon's decision as a prognostic factor in a pool of patients with colorectal cancer coming from different institutions.

Different pathological and predictive factors are used to stratify patients submitted to radical surgery for colorectal carcinoma. In addition to stage and histotype, the surgeon's technique and decisions also appeared to affect the prognosis. The aim of the present study was to evaluate if the extent of lymphadenectomy was associated with a different long-term outcome in a pool of 117 patients. In particular, in patients classified as Dukes' B, some evidences seem to suggest that the staging procedure depends on a correct surgical lymphadenectomy with a higher risk of understaging colorectal carcinomas when the number of removed nodes is limited. Moreover, the promptness in forwarding patients to the chemotherapist seems to influence the disease-free survival.

[Advantages of the systematic combined use of endoscopy, monitored pH measurement and aimed biopsy in the study of gastroesophageal reflux]. / Vantaggi dell'impiego associato sistematico della endoscopia, della pHmetria monitorata e della biopsia mirata nello studio del reflusso gastroesofageo.

The Authors refer their experience using endoscopy, biopsy and 24 hours pHmetry associated in 62 patients with symptomatology of reflux. In 21 cases it was shown different grades of esophagitis, in 12 cases reflux potentially pathological. The Authors refer that this association in studying reflux is very comfortable for every Department.

[Biliary-intestinal bypass in the treatment of severe obesity: personal experience with 23 patients]. / I1 bypass biolio-intestinale nel trattamento dell'osesità grave: nostra esperienza su 23 pazienti.

BACKGROUND: The aim of this study was to determine the efficacy and safety of biliary-intestinal bypass in severely obese subjects (Body Mass Index > 35). METHODS: From January to December 1999, 23 patients (8 men and 15 women, mean age 36.6 years: range 20-51) affected with primary morbid obesity (BMI >40: range 40.1-64.7), in whom different attempt using conservative medicine have proved non-resolutive, underwent biliary-intestinal bypass. After the operation all the patients have been followed- up for 12 months. RESULTS: The mean Body Mass Index was reduced to 36.9 (range 27.7-44.1) after 6 months and to 33 (range 24.9-40.1) after 12 months. Peri and postoperative mortality was zero. Excessive malabsorption was efficaciously controlled by adequate replacement therapy. Diarrhoea, common compliance of every operation inducin malabsorbition, was reduced to 2-3 evacuation a day after 2-3 months. CONCLUSIONS: On the basis of personal experience it is underlined that biliary-intestinal bypass, as surgical treatment of morbid obesity refractory to medical therapy, is today a safe and effective operation (up to 80% of excess body weight lose); the presence of biliary-intestinal anastomosis reduces the post-operative loss of bile acids, choleretic diarrhoea and electrolytic disorders.

[Intrabiliary rupture of hepatic echinococcosis cysts: presentation of a clinical case and review of the literature]. / Rottura intrabiliare di cisti da echinococcosi epatica: presentazione di un caso clinico e revisione della letteratura.

Intrabiliary rupture of hydatid cyst of liver is a complication of hydatid disease. The authors report the case of a patient surgically treated by total pericistectomy and suture communication with biliary system, the best treatment for this condition.

["Strawberry" gallbladder: review of the literature and our experience]. / Colecisti "a fragola": revisione della letteratura e nostra esperienza.

The term "strawberry gallbladder" refers to an anatomo-pathological aspect which is included in the wider chapter of gallbladder cholesterolosis. Introducing their experience, the Authors summarize the hypotheses through the years proposed about the etiopathogenesis of this condition the clinical symptoms that it can produce and the diagnostic strategies used to identify it. Moreover the Authors underline that the "strawberry gallbladder" continues to be reported with a significant frequency. They also confirm the opportunity of surgical treatment of symptomatic patients as a valid alternative to medical therapy which is not always effective, it is long lasting, often complex and not completely side effects lacking.

Mesenteric cystic lymphangioma causing intestinal occlusion in an adult patient.

Cystic lymphangioma is a benign tumor of uncertain etiology characterized by a slow growth; in 2-8% of cases it is localized in the mesentery. Symptomatology is aspecific and preoperative diagnosis is often difficult. The Authors report the case of a mesenteric cystic lymphangioma in a patient who had undergone subtotal colectomy eight years earlier for an adenocarcinoma occluding the sigmoid colon. The patient was hospitalized for intestinal occlusion.

[Diagnosis and treatment of distal bile duct carcinoma: our experience]. / Diagnosi e trattamento delle neoplasie del coledoco distale: nostra esperienza.

Bile duct carcinomas are known to be difficult to cure, due to frequent locoregional recurrence even after radical resection. The Authors analyze their experience in a study about 53 patients treated between October 1991-January 2002.