Biomedical subjects
Publications and source records attributed to M Bononi.
The Authors report a case of primary non-Hodgkin's lymphoma of the testis. Although lymphoma is a rare neoplasm, it is commonest tumor in the elderly age. Surgical therapy is essential but some times it can be associated to radio-chemotherapy.
BACKGROUND: Several studies have reported an association between Hashimoto's disease and thyroid carcinoma although the cause/effect relationship is still controversial. CASE REPORT: In this paper we report the case of a 38-year-old female who first presented with a clinical history of Hashimoto's thyroiditis. Ultrasound examination showed a diffuse thyroid irregularity more pronounced in the right lobe. FNAC (Fine Needle Aspiration Cytology) was performed in this area, and the cytological diagnosis was "Hashimoto's thyroiditis". The patient underwent clinical follow-up. Two years later, an ultrasound examination showed a nodular lump in the area previously aspirated. A new FNAC evidenced a Hurthle cell neoplasia. Therefore, the patient underwent surgery. The histological diagnosis was "Hurthle cell carcinoma". CONCLUSION: In the present case, the clinical and ultrasound history suggest the development of a malignant lesion strictly related to thyroiditis, as previously reported by other studies on papillary carcinoma. A cause-effect relationship between chronic lymphocytic thyroiditis and oncocytic neoplasia is still a matter of controversy. Therefore, patients suffering from chronic thyroiditis require a careful follow-up and, in case of nodules development, FNAC is recommended.
The authors review 274 cases of Merkel's cells tumor reported in literature and present one case they personally observed. This kind of neoplasm develops itself inside the derma without involving the epidermidis and shows an aggressive biological behaviour. The authors describe its anatomopathologic characteristics and underline the importance of the immunohistochemistry particularly for a differential diagnosis with respect to lymphoma, amelanotic melanoma and the scarcely differentiated metastatic carcinoma. Undoubtedly the surgical treatment is to be preferred. It consists of the removal of the primitive lesion together with a preventive regional lymphadenectomy. Radio and chemotherapy still don't play a standard role, their results are anyway encouraging even if not well defined up to now. These therapies are used in several ways: together with surgery in case of local relapses or metastasis or as sole treatment. In consideration of the small number of available data, we can finally state that Merkel's cells tumor must be further studied in order to come to a certain definition of this neoplasm from a histogenetic and anatomopathologic point of view and, above all, to find out a treatment able to reduce the high mortality rate that still today characterizes the prognosis.
The authors discuss problems related to emergency surgical management of non penetrating thoracic injuries. With reference to their own experience and current literature, they underline the etiologic, pathophysiologic, diagnostic and therapeutic features of the most frequent indications to the surgical treatment.
The Authors report a case of leiomyosarcoma of the rectum. Recent literature is reviewed and some problems related to clinico-pathological, diagnostic and therapeutic aspects of this neoplasia are also discussed.
A comparative study was performed on the efficacy, safety and tolerability of three different antibiotics (imipenem, ceftazidime, ceftriaxone) in the prevention of postoperative infection. Evaluations were made on the basis of the results obtained in a group of 90 patients subdivided into three matched groups each of which was treated with one of the three compounds. The trend of cutaneous temperature showed differences at the limit of significance (p congruent to 0.05). Variations in leucocyte concentrations showed an analogous pattern in all patients, although there were fewer and with a shorter duration in subjects treated with imipenem. The wound healing process was improved in patients receiving prophylactic antibiotic treatment in the form of imipenem (0.01 < p < 0.05) who also showed a greater respect for therapeutic protocols (80%), a higher percentage of remission of fever and a shorter mean hospital stay (9 days). In the light of these preliminary results the authors express their favourable judgement regarding the choice of imipenem for the prophylaxis of postoperative infection; however, each of the three protocols showed a considerable prophylactic capacity as well as good tolerability and ease of use.
At the beginning of their experience the authors limited laparoscopic treatment to simple cholelithiasis. They then extended this method to acute cholecystitis. They report here 11 cases with no mortality and morbidity and a conversion rate equal to 18.18% (2 cases of new acute phase of chronic cholecystitis after deferred emergency surgical treatment). The postoperative stay in hospital never exceeded 72 hours for the 9 cases of laparoscopic cholecystectomy, while the 2 cases of laparotomic respectively on the VII and VIII days. In consideration of what is reported in the literature and of personal experience, even if limited, the authors acknowledge that laparoscopic cholecystectomy if it is practised by an expert surgeon in the presence of precise indications and with a low conversion rate.
From March 1992 to September 1994, 281 patients were submitted to laparoscopic cholecystectomy for cholelithiasis. 27 patients were admitted with diagnosis of acute cholecystitis and in 17 patients common duct stones were discovered and managed by ERCP before laparoscopic procedure. Surgical procedure was the standard one described by Cox. The mean duration of the operation was 60 minutes and was significantly related to the surgeon's experience; the incedence of conversion to open procedure was 5.7%. There was no postoperative mortality; the total morbility rate was 2.8%, with 3 major complications, and 5 minor complications.
The records of 86 patients with primary adenocarcinoma of the gallbladder were reviewed. All patients were staged according to the Nevin classification. Twenty-nine patients underwent resection, 57 were submitted to palliative procedures or exploratory laparotomy. Survival was directly related to tumor staging and modality of treatment. The 5- and 10-year survival expectancy after curative resection was 46.8% in stage II patients, 14.2% and 0%, respectively, in stage V patients. None of the unresectable cases survived beyond 24 months, except for one patients who lived 62 months. No significant difference in survival expectancy was found between resectable and unresectable patients with stage V tumor.
The paper discusses the indications, limits and basic technical principles of laparoscopic appendicectomy, comparing the costs and benefits to the laparotomic method. The authors review the Literature on this subject and report their personal experience of 11 cases with a nil morbidity and mortality rate.
Starting from the study of a personal case, the authors underline that adrenal cysts are a very rare pathology, occasionally observed and without symptoms. Moreover they point out diagnostic methods, don't permit a certain diagnosis and therapies are not univocal.
From 1976 to 1993, nine patients (5 men, 4 women) with pericardial cysts were treated in Authors' Department. Of the nine cysts, six were located in the right cardiophrenic angle, one in the subcarinal site, one in the right tracheobronchial angle, and one in the para-auricular site just above the diaphragm. Four patients were asymptomatic. A correct diagnosis was possible preoperatively only in patients with cysts typically located in the cardiophrenic angle. Eight patients were surgically treated by a standard posterolateral or axillary thoracotomy. One patient with a large pericardial cyst underwent needle percutaneous aspiration and CT-guided drainage of the cyst with a positive outcome. There was no operative morbidity or mortality.
Based of a personal series of 206 patients, the authors evaluate their personal experience of an outpatient surgery ward for thyroid pathologies. The paper reports the diagnostic and therapeutic approaches both in patients undergoing surgery and those who do not. Attention is focused on the importance of the multidisciplinary team and the quality of the results of a homogeneous follow-up.