Evaluation of mental foramen and inferior alveolar nerve canal and its relationship to adjacent anatomical landmarks using cone-beam computer tomography.

The objective of the research was to evaluate the location, size, variability, and morphologic features of mental foramen (MF) and the inferior alveolar nerve canal (IAN) on cone-beam CT. We evaluated the morphologic findings of mental foramen (MF) and inferior alveolar nerve (IAN) canal of 88 mandibular hemiarches of 65 Caucasian subjects (35 males, 30 females; age range 25-75 years) using cone beam CT. The most common horizontal position of MF was type 3 (53.4%), followed by type 4 (39.8%), type 1 (2.3%), type 2 (2.3%), and type 5 (2.3%). Regarding the vertical position, in 71.6% of cases (63/88) we found type 3 position, followed by type 2 (22.7%) and type 1 (5.7%). MF presented as oval in 51.1% and round in 42%, with double oval and triple foramens having been observed in 5.7% and 1.1% respectively. In 36.9% of cases, we found an anterior loop of the IAN. The mean depth of MF was 6.12±1.65mm; width and height were 3.7±0.83mm and 3.14±0.78mm. Width and height of the IAN distal to MF were 2.27±0.53mm and 2.74±0.51mm, while those of the incisive nerve canal mesial to MF were 1.37±0.44mm and 1.54±0.58mm, respectively. An increase in the width of MF was correlated to oval shape (r=0.45; P < 0.01), and there was a low but significant correlation (r=0.23; P < 0.05) between the round shape of MF and the size of the IAN. MF shape appears to be correlated to MF width and size of the IAN. The individual anatomical variability of this structure is a factor that must be considered when dealing with mandibular surgery.

Conservative surgical treatment in rectal cancer after complete pathological response to neoadjuvant treatment. Prospective observational study.

In 2012 we started a prospective observational study at San Giovanni Addolorata Hospital in Rome for patients with rectal cancer with complete response to neoadjuvant therapy (nCRT). In our, IRB approved protocol, patients are evaluated at time 0 by physical, endoscopic, pathological and radiological examinations. 6 weeks after completion of nCRT they are re-evaluated. In case of persistence or progression of disease patients undergo surgery with Total Mesorectal Excision. In case of complete or major clinical response they are re-evaluated at 12 weeks and subjected to transanal surgical excision to confirm complete pathological response (pCR). If tumor is found in the transanal excision specimen the patient is operated upon whereas patients with pCR are followed up at 3 months interval.

Bone marrow and sentinel lymph node biopsy in patients with breast cancer: from staging to ultrastaging?

Bone marrow (BM) biopsy has been suggested as an independent prognostic tool to improve staging in patients with breast cancer. Two hundred and ten consecutive patients operated for breast cancer from June 2000 to June 2005 who signed an informed consent were enrolled in this protocol. Patients underwent SLN biopsy, and lymph nodes were analysed with serial sections and stained with hematossilin-eosin and immunohistochemistry. At the end of the procedure a BM aspirate from the iliac crest was obtained and 5-10 cc of blood collected. A CEA specific nested reverse transcriptase (RT) polymerase chain reaction (PCR) assay was used to examine BM samples. Results were blinded to both patients and clinicians. The median age of the patients was 56 years (range 34-80), and the median tumor diameter 1,5 cm (range 0.2-4.5). BM aspirates were unsuccessful in ten patients, and RT-PCR was not technically feasible in seventeen women, leaving 183 patients available for analysis of results and follow up. SLN biopsy allowed diagnoses of occult metastases (micrometastases and isolated tumor cells) in 16% of patients (29/183). 25% of T1N0 patients (23/92), 35% of T2N0 patients (6/17), and 44% of N1-2 patients (32/72) were BM+ (p = 0.03). At a median follow up of 35 months 5/122 in the BM- group and 6/61 in the BM+ group have relapsed (p = 0.2), while 1/122 and 4/61 have died of disease (p = 0.04) In conclusion, ultrastaging of breast cancer patients may identify a substantial subgroup of patients N-/BM- who may not require adjuvant chemotherapy, as well as a subgroup N-/BM+ with a decreased survival who may need more aggressive therapies. Further follow-up is needed to confirm this hypothesis, and several studies are under way.

Cardiopulmonary resuscitation and the patient with cancer.

The records of 114 cancer patients suffering cardiopulmonary arrests (CPA) during a 3-year period at Memorial Sloan-Kettering Cancer Center (MSKCC) were retrospectively reviewed to identify variables predicting final outcome in these patients. Although 65.7% of the patients were successfully resuscitated, only 12 (10.5%) were discharged alive from the hospital. Median survival after discharge was 150 days. By univariate and multivariate analysis, the only variable predicting the likelihood of a patient's being discharged alive after a CPA was the performance status of the patient at the time of admission to the hospital. Thus, a patient spending more than 50% of the time in bed at the time of admission had only a 2.3% chance of being discharged alive after CPA. A thorough discussion of these findings between physicians and patients and their families is strongly recommended at the time of admission to spare cancer patients unnecessary invasive resuscitative procedures.

Proximal extrahepatic bile duct tumors. Analysis of a series of 52 consecutive patients treated over a period of 13 years.

Fifty-two consecutive patients with proximal extrahepatic bile duct tumors were treated by one of us (J.G.F.) between 1974 and 1987 at Memorial Sloan-Kettering Cancer Center, New York, NY. Thirty-eight patients (73%) underwent palliative procedures aimed at relieving the biliary obstruction (group A) and 14 patients (27%) were operated on with curative intent (group B). The choice of the surgical procedure employed to relieve the biliary obstruction did not significantly influence the length of survival of patients in group A in whom the median survival was 13.5 months and the in-hospital mortality was 15.7%. Fifty percent of the patients in group B underwent major liver resections to macroscopically encompass the tumor. In this group, although 35% of the patients experienced major complications, no in-hospital mortalities were encountered and the median actuarial survival was 38 months. The projected and crude 5-year survival rates were 28% and 21%, respectively. Age, gender, extent of resection, microscopic status of margins of resection, and grade of the lesion did not affect the length of survival in patients in group B. Locoregional failure, either isolated or as a component of peritoneal failure, was detected in the 6 patients in whom the disease has recurred. Eighty-three percent of the patients in whom the disease has recurred were dead within 12 months of the diagnosis of recurrence. Two long-term survivors (14%) developed second primary tumors in the follow-up period.

[Extemporaneous examination of the sentinel lymph node in breast cancer: is the glass half full or half empty?]. / L'esame estemporaneo del linfonodo sentinella nel cancro della mammella: il bicchiere è mezzo pieno o mezzo vuoto?

Intra-operative examination of sentinel LN is controversial. Concordance with definitive exam of SLN in this series was 81%, though only 54% of positive cases were diagnosed. Micrometastases and ITC were usually lost intraoperatively, accounting for 14% of cases. Frozen section and touch prep of the SLN were approximately equivalent. The latter has the advantage of preserving tissue for step-analysis of SLN. The ultimate method of intraoperative analysis of SLN which can combine cost-effectiveness and accuracy needs to be determined.

[Sentinel lymph node for breast cancer: remove less to know more]. / Il linfonodo sentinella nel cancro della mammella: rimuovere di meno per sapere di più.

BACKGROUND: Our aim was to study the value of sentinel lymph node (SLN) biopsy in patients with breast cancer seen at a community hospital. METHODS: Consecutive cases receiving primary treatment for unicentric breast cancer less than 3 cm in diameter were prospectively studied from January 1999 to July 2000. All patients signed a detailed informed consent. The majority of patients (89%) underwent a combined technique of intradermal injection of 0.3-1.2 mCi of (99)Tc and 1-3 cc of Patent Blue at the biopsy site. Intraoperative localization was performed with a hand-held gamma probe. The first 15 patients underwent routine back-up lymphadenectomy. Thereafter, only patients with positive SLN, suspicious findings, or personal preference underwent formal axillary dissection. RESULTS: One hundred eight cases were included in the study with a median age of 61 years and a median diameter of the breast tumor of 1.5 cm. Success rate for identification of SLN was 94% (101/108 cases). A total of 917 additional lymph nodes were removed after SLN biopsy (median 6.5 lymph nodes/patient). Correlation between SLN and the final axillary status was 98%. In 20/36 patients (61%) with positive axillary status the sentinel lymph node was the only positive one. Ten patients had only microscopic foci of cancer found in the SLN. Sixty-seven patients (62%) could have avoided axillary dissection becouse the SLN was found, it was negative, and there were no other intraoperative suspicious findings. CONCLUSIONS: SLN biopsy is accurate and easily reproduced. Our data confirms that the majority of breast cancer patients may no longer need routine axillary lymphadenectomy.

Adenocarcinomas of appendix: a rare tumor. Two case reports.

Primary Adenocarcinomas of the appendix are rare tumor. Most commonly diagnosis was made after surgical pocedure of appendicectomy for suspect acute appendicitis and the pathology report confirms appendiceal neoplasm. Laboratory exams and imaging show low sensibility and specificity for preoperative diagnosis. We report two cases of primary mucinous adenocarcinoma in caucasian men misdiagnosed as having acute appendicitis. Appendicectomy was done and excised appendix was sent for histopathological examination. Mucinous Adenocarcinoma of the appendix was confirmed after histopathological examination. Right hemicolectomy, peritonectomy and Intraoperative Hyperthermic Chemotherapy were done as a second stage procedure. The surgical treatment of these neoplasms depends from the histological stage and local presentation. Cytoreductive surgery associated with Intraoperative Hyperthermic Chemotherapy show best results in advanced cases.

Intraoperative ultrasound is an effective and preferable technique to localize non-palpable breast tumors.

INTRODUCTION: Non-palpable breast tumors represent an increasing management problem in modern Breast Units. Therefore, a simple and accurate procedure to localize these lesions is needed. To date, the most commonly used technique is wire localization, but there are some disadvantages. METHODS: We conducted a prospective study on patients with malignant or benign non-palpable breast tumors who were surgically treated and underwent intraoperative ultrasound (IOUS) from May 2006 to June 2007. Margins of excision were inked and specifically assessed by the pathologist, and were considered positive if

A standardized sentinel lymph node enhanced pathology protocol (SEPP) in patients with breast cancer.

BACKGROUND AND OBJECTIVES: Sentinel lymph node (SLN) biopsy allows enhanced pathology with serial sections and immunohistochemical analysis of the retrieved node. We present our experience with a simple, practical, pathology protocol. METHODS: We analysed 416 consecutive breast cancer patient who underwent SLN biopsy. These were studied with six couples of sections at three different levels, each stained with hematoxylin-eosin (H/E) and immunohistochemistry (IHC) (MNF 116). RESULTS: With conventional analysis the SLN was positive in 106/416 cases (25%). The addition of serial sections, according to the protocol, allowed diagnoses of micrometastases (MICRO) (n = 22) or isolated tumor cells (ITC) (n = 38) or MICRO (n = 1) in 51/416 patients (14.6%). Specifically, the diagnosis was undertaken at level I (8.9%), level II (4%), or level III (1,6%). The incidence of MICRO or ITC was not different in T1 and T2 cases (13% vs. 15%, P = 0.7). The addition of the third level of analysis added very little both in T1 and T2 cancers (1.3% vs. 3.8%, P = 0.1). CONCLUSIONS: Serial sectioning of the SLN allows diagnosis of MICRO and ITC in a significant percentage of cases. Adoption of our protocol seems practical, as the incidence of level III positivity is extremely low, particularly in T1 cancers, and additional sections would be, therefore, unlikely useful.

[Role of cutaneous thoraco-abdominal flap in the surgical treatment of advanced stage breast tumors]. / Il ruolo del lembo cutaneo toraco-addominale nel trattamento chirurgico degli stadi avanzati del tumore della mammella.

Chest wall reconstruction following extensive resection due to advanced breast cancer or radionecrosis still represents a challenge for both oncologic and reconstructive surgeons. A multitude of techniques including pedicle muscle transposition, free muscle flaps and omental flaps have always been considered, despite the morbidity of donor site. The authors describe a new cutaneous thoraco-abdominal flap to cover full thickness defects up to 600 cm2. 16 patients underwent chest wall reconstruction with the aforementioned technique. No major complications occurred. This technique proved to be a very good options to cover large chest wall defects in patients with advanced or recurred breast cancer or radionecrosis.

[Strategic approach to immediate breast reconstruction with submuscular-fascial tissue expanders]. / L'approccio strategico alla ricostruzione mammaria immediata con gli espansori tissutali sottomuscolofasciali.

Breast reconstruction can be accomplished with implants, autologous tissue or both. Thanks to the widespread of microsurgical techniques autologous tissue reconstruction has become a frequent option in many departments although it is mostly considered a second choice. The aim of this study was to review our experience covering the past five years in immediate breast reconstruction with tissue expanders. From January 2000 to January 2005 279 patients underwent immediate breast reconstruction with submuscular tissue expanders. Tissue expander was chosen according to dimension, shape and volume of the healthy breast. Operating time, early and late complications, interference with neo-adjuvant therapies as well as timing and surgical techniques of second-step reconstruction were also considered. No major complications occurred. Tissue expander, beyond proving itself a valid and safe option in immediate breast reconstruction, also decreased the psychological distress following a mastectomy.

[Locally advanced and recurrent pelvic colorectal carcinoma: results of aggressive surgical treatment]. / Carcinoma colorettale pelvico localmente avanzato e recidivo: risultati di un trattamento chirurgico aggressivo.

Pelvic exenteration has been described as a formidable procedure in cases of advanced or recurrent pelvic cancers for a variety of primary tumors, including colorectal, gynaecologic and urologic. We report our 14-year experience in a community hospital with 37 cases who underwent pelvic exenteration for recurrent (n = 15) or locally advanced (n = 22) colorectal cancers. At a median follow-up of 36 months, the median survival was 24 and 36 months, respectively, and the 5-year actuarial survival was 18% and 44%.

[Hormone-dependence and C-ERBB2: relationship between estrogen receptor expression, estrogen-regulated proteins, and C-ERBB2 in breast carcinoma]. / Ormono-dipendenza e C-ERBB2: rapporto tra espressione dei recettori estrogenici, estrogen regulated proteins e C-ERBB2 nel carcinoma della mammella.

We reviewed 1491 consecutive cases of operated breast cancer between 1999-2004, and found that hormone-dependence, particularly if evaluated with functional markers of the estrogen receptor (estrogen regulated proteins, ERP), is inversely proportional to antigen neu expression. Our data confirms that ERP can give additional information on the probability of response to hormonal therapy.

[Predictive variables of lymphatic metastasis in breast carcinoma with a diameter below 2 cm]. / Variabili predittive di metastasi linfonodali nei carcinomi mammari di diametro inferiore a cm 2.

The axillary lymph node status of patients with newly diagnosed breast cancer remains the most important prognostic information available at the moment. However, only a minority of patients presents with such node metastases at diagnoses. We reviewed our database and studied 500 consecutive patients with early breast cancer, and found that age inferior to 50 years, high grade, diameter superior to 1 cm, elevated Ki-67, and expression of oncogene p-53 are all factors associated with lymph node metastases.

[Towards the standardization of sentinel lymph node analysis in women with breast cancer]. / Verso una standardizzazione dell'analisi del linfonodo sentinella in donne con cancro della mammella.

Sentinel lymph node biopsy allows enhanced pathology through serial sections and immunohistochemical analysis of the retrieved node, with detection of micrometastases and isolated tumor cells not otherwise recognized. We present our experience with a simple, effective, pathology protocol requiring six couples of sections at three different sentinel lymph node levels. Additional micrometastases or ITC were diagnosed in 51/416 patients (14.6%).

[Does incidence of sentinel lymph node metastasis increase after diagnostic manipulation in women with breast cancer?]. / Aumenta l'incidenza di metastasi nel linfonodo sentinella dopo manipolazione diagnostica in donne con cancro della mammella?

503 patients were retrospectively evaluated to assess whether a previous needle or core biopsy, or surgical surgical excision of the primary tumor are associated with passive dislodgment of tumor cells in the sentinel lymph node, as reported in recent publications. We could not identify any increased incidence of sentinel lymph node micrometastases or isolated tumor cells after diagnostic manipulation of the primary tumor.

Paraesophageal hernia.

We have reviewed our experience with eight patients with paraesophageal hernias surgically repaired at this institution during an 18-month period. Three of these patients required emergent operation, and although the morbidity was higher in this group than in those undergoing elective surgery, no mortalities occurred in either group. The potential for the development of life threatening complications warrants immediate surgery on patients who are diagnosed to have paraesophageal hernias, even if asymptomatic. We recommend a transabdominal approach for the performance of a crural repair and an antireflux procedure.