Thyroid nodules treated with percutaneous radiofrequency thermal ablation: a comparative study.

PURPOSE: Percutaneous radiofrequency thermal ablation (RTA) was reported as an effective tool for the management of thyroid nodules (TNs). The aim of this study was to investigate the effects of RTA and to establish whether they were treatment-related by comparison with a matched, untreated control group. PATIENTS AND METHODS: The study population included 40 patients with compressive TNs: 22 had nontoxic TNs, and 18 had toxic TNs and were treated with methimazole. In all patients, a fine-needle aspiration cytology was performed to exclude a thyroid malignancy. STUDY DESIGN: Twenty patients were treated with RTA (group A), and 20 others did not receive any treatment (group B). At baseline, age, gender, and TN features did not differ significantly between groups. All patients were clinically, biochemically, and morphologically evaluated at baseline and after 1, 3, 6, and 12 months. RESULTS: TN volume significantly decreased in group A (1.8 ± 0.3 ml at 12 months vs. 13.3 ± 1.8 ml at baseline; P < 0.0001) and remained stable in group B [11.7 ± 1.5 ml at 12 months vs. 11.2 ± 1.5 ml at baseline; P = not significant (NS)]. At 3-, 6-, and 12-month evaluations, TN volume was significantly lower in group A than in group B (P < 0.005). At the end of the follow-up, pressure symptoms were improved in all patients in group A but persisted unchanged in group B. In group A, hyperthyroidism completely recovered in 40% and improved in 40% of patients with toxic TNs, whereas it persisted in all patients with toxic TNs in group B. RTA was safe and well tolerated in all patients. CONCLUSIONS: RTA induced a marked TN volume shrinkage resulting in parallel improvement of pressure symptoms. In most patients with toxic TNs, hyperthyroidism significantly improved as well. RTA may represent a valid therapeutic approach in patients with TNs not receiving conventional treatments.

[Retroperitoneal dedifferentiated liposarcoma (DDLS) with hyperglycemic activity: case report and literature review]. / Liposarcoma dedifferenziato retroperitoneale con attivita ipergligemica: caso clinico e review della letteratura.

The authors describe a Retroperitoneal De Differentiated LipoSarcomas (DDLs), that for its clinical behavior shows peculiar characteristics and original aspects: typical is the recurrence due to local invasiveness, but absolutely original seems to be the surviving time, maybe correlated to its histological evolution (dedifferentiation from leiomyosarcoma to liposarcoma) and an interesting correlation from the tumor recurrence and the glycemic curve first and after the surgical treatments. A 66-year-old woman, presenting typically with very big abdominal masses, treated three times in almost three years, every time with aggressive surgical treatments. Histological response was leiomyo-sarcoma in the first two operations and liposarcoma in the last treatment and in every preoperative phase the patient, normally prediabetic, started to have problem of glycemia balancing, needing an insulin support until the postoperative phases when its glycemia was coming back in normal value without insulin needs, of course until a new tumor recurrence. This last aspect, not depending on pancreas involvement or hormonal activity (immune-histo-chemistry was never conforming a neuro-endocrine activity), seems probably due directly to a mass and metabolic effect of the tumor. Beginning from the description of this case and its interesting biology and reviewing most of the literature on the argument, authors hope to give our support to still debated and partially unknown aspects of these kinds of tumors.

Biliary tract injuries during laparoscopic cholecystectomy: three case reports and literature review.

INTRODUCTION: Biliary tract injuries (BTI) represent the most serious and potentially life-threatening complication of cholecystectomy. During open cholecystectomies (OC), the prevalence of bile duct injuries has been estimated at only 0.1-0.2%. We report 3 cases of BTI during laparoscopic cholecystectomy (LC). CASE 1: Ascalesi Hospital, Naples 2003-2007, 875 LC (BTI 0,11%). During the dissection of triangle of Calot a partial resection of biliary common duct was made. Immediately the lesion was evident and sheltered in laparoscopy, suturing with a spin reabsorbable, without biliar drainage. The post-operative outcome was good, without alteration of the some parameters, and the patient was discharged after three days. At the last follow-up (January 2006) the cholangiography didn't show stricture or leakage. CASE 2: General and Laparoscopic Surgical Unit San Giovanni di Dio Hospital Frattamaggiore 2004-2007, 720 LC (BTI 0,13%). Patient affected by cholecystitis with gallstones. The patient did not present jaundice, but abdominal pain, leucocitosis, fever and US evidence of parietal gallbladder inflammation. LC was performed after 36 h; during operation, common biliar duct was misidentified for subverted anatomy caused by inflammation. The common bile duct was clipped, and the patient presented jaundice after three days after operation. The colangiography was performed showing the stop. Therefore a reoperation was needed and laparotomic Roux-en-Y hepaticojejunostomy was performed. CASE 3: Dpt of Emergency Surgery, Second University of Naples 2000-2007, LC 520 (BTI 0,19%). Patient affected by more than 20 years symptomatic cholelithiasis, with only obesity risk factor; she underwent laparoscopic cholecystectomy and sudden bleeding of the cystic artery, poor vision and probably the long history of symptoms, producing a flogistic alteration of the anatomy, caused a misidentification of the cystic duct and the common bile duct with complete or lateral clipping of the common hepatic duct. The error was unrecognized intra-operatively but after progressive jaundice the postoperative colangiography showed a nearly complete stop by two clips. Roux-en-Y hepaticojejunostomy with intraoperative cholangiographic control was performed. DISCUSSION: The most common cause of BTI is the failure to recognize the anatomy of the triangle of Calot. This is attributed to factors inherent to the laparoscopic approach, to inadequate training of the surgeon and to local anatomical risk factors. The laparoscopic "learning curve" of the surgeon is the most important factor of bile ducts injury. But also local anatomical risk factors are important such as acute cholecystitis, severe chronic scarring of the gallbladder and bleeding or excessive fat in the hepatic hilum. These local risk factors seem to be present in 15% to 35% of BTI. Abnormal biliary anatomy, such as a short cystic duct or a cystic duct entering into the right hepatic duct also may increase the incidence of BTI. Schematic representation of the common mechanisms of BTI during LC are: misidentification of the cystic duct and the common biliary duct, lateral clipping of the common biliary duct, traumatic avulsion the cystic duct junction, diatermic injury of common biliary duct during dissection of the Calot triangle or during the cholecystectomy, injury of anomalous right hepatic duct. CONCLUSION: Conversion to laparotomy, in difficult cases involving inflammatory changes, aberrant anatomy or excessive bleeding, is not to be considered as a failure but rather as good surgical decision in order to ensure the patient's safety.

Surgical treatment of sporadic medullary thyroid carcinoma: strategy and outcome.

BACKGROUND: Medullary Thyroid Carcinoma (MTC) originates from the thyroid C cells and accounts for approximately 5-9% of all thyroid cancers. Aim of this study was to retrospectively evaluate the outcomes of 41 patients with MTC who underwent treatment at our institution. PATIENTS AND METHODS. We reviewed the records of 41 patients who underwent surgery between 1995 and 2004. The patients were divided into two groups: A) patients (n 30) without any previous surgery. B) patients (n 11) previously thyroidectomized and high calcitonin levels with or without radiological evidence of local regional or distant metastases. We performed total thyroidectomy with central compartment lymphadenectomy and ipsilateral modified radical neck dissection in group A patients. Group B patients underwent re-excision of the central neck compartment and bilateral modified radical neck dissection if it had not been previously performed. RESULTS: Most patients had major reduction in postoperative calcitonin levels. Compartmental dissection of the cervical node significantly improved the results of primary surgery and calcitonin returned to normal levels in approximately 60% of the patients in group A, but only the 30% of the patients in group B. CONCLUSIONS: The extent of the primary surgical resection and the evidence of local or distant metastases significantly influence the outcome of MTC patients. An extensive lymphadenectomy performed early in the treatment and re-operative cervical lymphadenectomy in patients with persistently high calcitonin levels after thyroidectomy significantly improved the outcome, although re-operation rarely results in normalized calcitonin levels and is associated with a higher incidence of complications.

Primary breast lymphoma: case reports and review of the literature.

As the prevalence of breast cancer has increased over recent years many cases with unusual presentation are emerging. This review attempts to identify different types of primary malignancies that can affect the breast. A five years review was undertaken at the Breast Unit of Azienda Ospedaliera "Santa Maria", Terni (Italy). All cases of breast malignancy admitted to the Breast Unit between 2001 and 2005 were reviewed: 750 patients were diagnosed with malignant breast disease. Primary breast lymphoma (was found only in two cases accounting for an incidence of 0,26%. The pre-operative diagnosis was infiltrating carcinoma in both cases and the patients were treated with surgery and systemic chemotherapy; currently they are disease- free.

Surgical treatment of differentiated thyroid carcinoma: a retrospective study.

INTRODUCTION: We carried out a retrospective analysis of our experience in the management of Differentiated Thyroid Carcinoma (DTC), in order to better define prognostic factors (age, gender, histological type, stage) and outline a standard procedure, where it's possible, for surgical treatment. PATIENTS AND METHODS: Patient population consisted of 432 cases, operated from 1978 to 2003. We carried out 285 operations of total thyroidectomy of which 39 associated to some kind of lymphadenectomy, 66 totalization (21 pts had been operated in other institutes), 60 subtotal thyroidectomies and 21 lobo-isthmectomies. Survival and mortality curves for age, sex, histological type, grading and staging have been calculated. Kaplan-Meyer statistical elaboration for disease-free interval and Mann-Whitney test for the comparison of different clinical and pathological data have been employed. RESULTS: The statistical analysis puts in evidence that on 432 cases examined, with a follow-up from 1 to 25 ys (median = 6.33 ys) and with a drop-out of 60 cases (13.8 %), total mortality for cancer has been of 24 cases (6,4%), with a median interval free by disease of 4.2 ys (range 5 months to 25 ys), and a probability to stay free by disease at 12 and 24 months respectively of 95.1% and 91.6%. The median survival is resulted of 5.8 ys (range 1 to 25 ys) with a probability of survival at 24 and 48 months respectively of 97.5% and 94.3%. The multivariate analysis evidences the most important variables, i.e. age > 45 ys, tumor of intermediate malignancy, with size 1.5 cm, operative M+, significantly condition the prognosis, noticeably getting worse it, independently by the kind of carried out operation. CONCLUSION: Our present therapeutic choices are: 1. total thyroidectomy in the treatment of the apparently benign pathology when bilaterally with spread; the checking at the final histological exam of a cancer makes however think adequate the carried out operation; 2. lobo-isthmectomy in the treatment of unilateral benign pathology or with suspect FNAB for follicular neoplasm; the histological checking of a cancer makes think the operation adequate only in presence of favourable prognostic parameters, but in presence even of just one unfavourable variable, we consider necessary the totalization; 3. total thyroidectomy in presence of a certain or strongly suspected preoperative diagnosis of cancer.

[Is extrauterine endometriosis confined to the gynecological sphere? A critical review of the experience in a general surgery unit]. / Endometriosi esterna: patologia di esclusivo interesse ginecologico? Il punto di vista del chirurgo generale.

Extrauterine or external endometriosis (e.e.) describes ectopic localization of functional endometrial tissue, a finding whose incidence is increasing due to the diffusion of laparoscopic procedures. The clinical presentation of such disease is often non-specific, even in those cases with a definite surgical indication, depending on the site and pathology of the lesions. Surgical planning is therefore difficult at times, specifically regarding the extent of resection in patients--as young women--willing to maintain fertility. The Authors report on 7 cases observed in their own experience (inguinal endometriosis--1 case, umbilical endometriosis--1 case, abdominal wall endometriosis--3 cases, intestinal endometriosis--1 case, diaphragmatic endometriosis associated with pneumothorax--1 case), representing the wide range of clinical settings related to e.e. Based on literature data, an analysis of clinical and diagnostic issues is carried out. Specifically, the problems related to extent of surgical resection in multifocal cases, possible malignant degeneration and localization on abdominal wall scars are discussed.

[Surgical treatment of sinus pilonidalis by Dufourmentel's flap technique]. / Il trattamento chirurgico del sinus pilonidalis con trasposizione di lembo secondo Dufourmentel.

The present study reports the results of surgical treatment of 175 consecutive chronic pilonidalis sinus cases by excision alone, excision and primary closure, excision and Dufourmentel's flap technique. The analysis of hospital stay , average recovery time, patient compliance and percentages of failures and recurrences enables us to state that Dufourmentel's technique is the best choice, allowing fast recovery with minimal discomfort and lower rate of recurrence. Moreover the good compliance of the technique and the use of recently introduced more effective local anaesthetics have allowed us to plan the treatment in a day-surgery setting with good clinical results.

[Lymphectomy in differentiated thyroid cancers: our experience]. / La linfectomia nelle neoplasie differenziate della tiroide: nostra esperienza.

INTRODUCTION: At present we are still debating on which is the most adequate therapeutic strategy concerning the size of the thyroidectomy and the extension of the lymphectomy in differentiated thyroid tumors. PATIENTS AND METHODS: From January 2000 to December 2005, 334 operations for thyroid neoplasms have been performed; 304 (91%) for differentiated tumors. In 124 cases (37%) the latero-cervical and/or the central compartment lymphectomy have been associated with thyroidectomy: 79 monolateral and central compartment lymphectomies (ML and CCL) (64%), 11 bilateral and central compartment lymphectomies (BL and CCL) (8%), and 34 central compartment lymphectomies (CCL) (28%) have been performed. RESULTS: Out of the 124 lymphectomies, in 44 cases (35.5%) we found the presence of metastasis in the lymph nodes of latero-cervical and central compartments, in 10 cases (8%) absence of metastasis in the lymph nodes of the latero-cervical and central compartments, in 25 cases (20%) presence of metastasis in the latero-cervical lymph nodes and absence of metastasis in the lymph nodes of the central compartment. In 11 cases of bilateral and central compartment lymphectomies, 5 of them (4%) had positive lymph nodes of the latero-cervical and central compartments, while the other, only 6 (5%), had positive latero-cervical lymph nodes on the same side as the neoplasia. In 34 central compartment lymphectomies there was absence of metastasis. Mortality rate was zero. There was one case (0.8%) of recurrent laryngeal nerve temporary bilateral palsy (RTBP); 4 cases (3.2%) of recurrent temporary monolateral palsy (RTMP); 2 cases (1.6%) of definitive monolateral palsy (DMP); 29 cases (23.5%) of temporary hypoparathyroidism (TH); 7 cases (5.5%) of definitive hypoparathyroidism (DH). CONCLUSIONS: Latero-cervical lymphectomy should be performed by necessity when clinical tests or pre-diagnostic exams show suspect lymph nodes, whereas central compartment lymphectomy should be performed in any case of thyroid neoplasia.

[Thyroid microcarcinoma: our experience]. / Microcarcinoma tiroideo: nostra esperienza.

Differentiated thyroid cancer had an excellent prognosis; the diagnosis of sub-centimetric differentiated cancer (microcarcinoma) is more and more frequently. Clinical evolution of microcarcinoma could be various: microcarcinoma can represent an autoptic finding or can evolve with locoregional lymph node involvement or metastasis. Various clinical and genetic factors have been considered to predict the aggressiveness of this neoplasm. From 2001 to 2004, 74 patients with diagnosis of thyroid microcarcinoma underwent surgical treatment. By a retrospective survey we evaluated risk factors and the choice of surgical treatment. The aggressiveness appear to be related mainly to multifocality and size. Our therapeutic strategy is to perform total thyroidectomy for benign pathologies, total thyroidectomy with lymphadenectomy in cases with preoperative diagnosis of microcarcinoma.

Breast surgery and sentinel node biopsy. Our experience.

Massive campaigns of screening of breast pathologies improved early diagnosis of breast cancers. Most of these cancers are small-sized (T1) and seldom show intraoperative nodal involvement. Sentinel node biopsy is the elective choice in the above mentioned cases because, if negative, it avoids axillary dissection. International literature reports rates of false negative sentinel node biopsy ranging among 4.5 and 12%; results in our experience account for almost 6%. As a consequence, there is the definite risk of potentially positive axilla that will not be dissected with subsequent risk of axillary recurrence within 24 months. The reason of that could be related to the fact that in Referral Centers this technique is performed in strictly selected patients, so as to gain a diagnostic accuracy of 98%. The rate of axillary recurrences does not justify the routine axillary dissection, since this is just a staging, not a therapeutic procedure. In case of doubt, it can be recommended a close and careful follow-up of the axilla.

[Abrikossoff tumor of the proximal esophagus misdiagnosed as a thyroid nodule]. / Tumeur d'Abrikossoff de l'oesophage cervical: une cause rare de faux nodule thyroïdien.

The diagnosis of thyroid nodules is straightforward and rarely mistaken. We present a case of a paraesophageal granular cell tumor, discovered incidentally during surgery for what it was diagnosed as a suspicious thyroid nodule by ultrasound and FNA. Complete resection was achieved without disruption of the esophageal mucosa. A terminal branch of the recurrent laryngeal nerve had to be resected en bloc with the tumor. Morphological and immunohistochemical diagnosis was established postoperatively. A review of the literature is presented.

[Granulomatous mastitis: diagnostic and therapeutic problems. Case report and review of the literature]. / Mastite granulomatosa: problemi di diagnosi e terapia. Presentazione di un caso e revisione della letteratura

The granulomatous mastitis is uncommon inflammatory disease of the breast of unknown etiology. The diagnosis is obtained only through hystopathology. We report a case of woman, 41 years old, showing lesions of the breast, that caused strong pain with ulcerations sero-haematic secretion and axillary omolateral lymphadenopathy. The diagnostic workup (sonography, mammography, multiples FNAB of single lesions, the culture of cells and hormonal profile) showed an inflammatory aspecific lesions with presence of atipic cells in nipple's secretion and in FNAB of periareola lesion. We performed an excisional biopsy. The hystopathologic diagnosis showed a granulomatous mastitis, confirming the validity of our diagnostic and therapeutic choices. The excisional biopsy has allowed to avoid an overtreatment and obtain a good aesthetic result.

[Histophenotypical variants of squamous cell carcinoma of the skin]. / Varianti istofenotipiche di carcinoma squamocellulare della cute.

Cutaneous squamous cell carcinoma (SCC) is, in its most frequent presentation, a moderately aggressive neoplastic disease. It can, however, present in a moltitude of clinico-pathological variants, some of which are characterized by a more malignant attitude. It is important to determine which tumors, among the various histophenotypes, are high risk in order to establish the appropriate treatment and follow-up. Histologic subtype has been considered as a possible variable in determining the prognosis of cutaneous SCC. We report our experience with 3 cases of peculiar variants of cutaneous SCC.

[Role of lymphadenectomy in the treatment of Merkel-cell tumors in i and ii stages]. / Ruolo della linfoadenectomia nel trattamento del tumore a cellule di merkel in stadio i e ii.

Merkel cell carcinoma (MCC) is a rare, malignant skin cancer, exhibiting neuroendocrine differentiation, with a significant incidence of locoregional lymph nodal involvement (40%-73%). The accepted staging system classifies MCC as: stage I, localized skin disease; stage II, regional lymph node disease; stage III, metastatic disease. The clinical differentiation of stage I and II patients is difficult and understaging is frequent. Surgery, as first approach, represents the leading treatment for this neoplasm and, depending on stage consists in: local wide excision for stage I patients and local excision and lymphadenectomy for stage II. In our experience, lymphadenectomy, included in the initial treatment of all stage II patients, seemed to influence positively the prognosis. In comparing stage related recurrence and survival rates the results we obtained were better in stage II patients, where lymphadenectomy was included in the initial treatment than in stage I subjects, who received local excision alone as first treatment and lymphadenectomy as secondary treatment for nodal recurrence (overall recurrence rate 86% vs 20%, survival rate 71% vs 80% in stage I vs stage II patients). The performance of lymphadenectomy for stage I MCC could be reconsidered both for a more reliable staging of the disease and for a positive impact on recurrence and survival rates.

[Spontaneous cervical haematoma due to extracapsular haemorrhage of a parathyroid adenoma: a report of 2 cases]. / Hématome cervical spontané secondaire à une hémorragie extracapsulaire d'un adénome parathyroïdien : à propos de 2 cas.

The usual clinical manifestations of a parathyroid adenoma are due, in most of the cases, to hypercalcemia. The development of a spontaneous cervical or cervicomediastinal haematoma is a rare form of presentation. In case of a spontaneous cervical haematoma associated with dysphagia: measurement of serum calcium, phosphate and parathyroid hormone allows the diagnosis of haematoma due to extracapsular haemorrhage from a parathyroid adenoma. We report herein 2 cases.

[Video-assisted parathyroidectomy in the management of patients with primary hyperparathyroidism]. / Place actuelle de la chirurgie vidéo-assistée dans le traitement de l'hyperparathyroïdie primaire.

INTRODUCTION: In recent years, different minimally invasive techniques of parathyroidectomy have been described. We performed a retrospective study to evaluate the indications and results of video-assisted parathyroidectomy (Vap) in the management of our patients with primary hyperparathyroidism (PHPT). MATERIALS AND METHODS: During the last 5 years (1998-2002), we operated on 528 patients with PHPT. Vap was proposed for patients with sporadic PHPT, without associated goiter and without previous neck surgery, in whom a single adenoma was localized by means of sonography and/or sestamibi scanning. Vap was performed by lateral approach with insufflation for patients with adenoma located deeply in the neck and by gasless midline approach for patients with adenoma located anteriorly. A quick parathyroid (qPTH) assay was used during the surgical procedures. Calcemia, phosphoremia and PTH were systematically evaluated in patients on days 1 and 8, 1 month and 1 year after surgery. All patients underwent pre-operative and postoperative investigations of vocal cord movements. RESULTS: Among 528 patients with PHPT, 228 (43%) were not eligible for Vap: associated nodular goiter (99 cases), previous neck surgery (42 cases), suspicion of multiglandular disease (25 cases), lack of pre-operative localization (48 cases), and miscellaneous causes (14 cases). Vap was performed in 300 patients with sporadic PHPT: 282 lateral access, 17 midline access and 1 thoracoscopy. Median operative time was 50 min (20-130 min). Conversion to conventional parathyroidectomy was required in 42 patients (14%): missed adenomas (11 cases), difficulties of dissection (7 cases), multiglandular disease correctly predicted by qPTH (10 cases); qPTH assay false negative results (3 cases), sestamibi scan false positive results (10 cases) and 1 sonography false positive result. One patient presented definitive recurrent nerve palsy. One patient had a persistent PHPT and one other patient had a recurrent PHPT. CONCLUSION: Vap can be proposed for more than half of patients with PHPT. In our experience Vap and conventional parathyroidectomy are complementary. Immediate results of Vap are similar to those obtained with conventional parathyroidectomy but no conclusions can be drawn in terms of influence of Vap on the outcome of the patients operated for PHPT.

[Video-assisted minimally invasive parathyroidectomy with lateral approach in patients with primary hyperparathyroidism]. / La paratiroidectomia mini-invasiva video-assistita con approccio laterale nei pazienti con iperparatiroidismo primario.

INTRODUCTION: Different minimally invasive techniques of parathyroidectomy have been described. We performed a retrospective study to evaluate the indications and results of video-assisted parathyroidectomy (VAP) in the management of patients with primary hyperparathyroidism (PHPT). MATERIALS AND METHODS: Between 1998 and 2002, 528 patients were operated on because PHPT. VAP was proposed for patients with sporadic PHPT, without associated goiter and previous neck surgery, in whom a single adenoma was localized. VAP was performed by lateral approach with insufflation for patients with adenoma located deeply in the neck and by gasless midline approach for anteriorly located adenomas. A quick parathyroid (qPTH) assay was used during the surgical procedure. Calcemia, phosphoremia and PTH were systematically evaluated after surgery. RESULT: Of 528 patients with PHPT, 228 (43%) were not eligible for VAP because associated nodular goiter (99 cases), previous neck surgery (42 cases), suspicion of multiglandular disease (25 cases), lack of preoperative localization (48 cases), and miscellaneous causes (14 cases). VAP was performed in 300 patients with sporadic PHPT: 282 lateral access, 17 midline access and one thoracoscopy. Mean operative time was 50'. Conversion to conventional parathyroidectomy was required in 14% of cases. One patient presented a definitive recurrent nerve palsy. One persistent and one recurrent PHPT were observed. CONCLUSION: VAP can be proposed for patients with PHPT. Immediate results of VAP are similar to those obtained with conventional parathyroidectomy; no conclusions can be drawn in terms of influence of VAP on the outcome of the patients operated for PHPT.

Surgical management of benign thyroid disease.

The most recent surgical approaches to benign uninodular, multinodular, normo and/or hyperfunctioning thyroid disease are considered.