Impact of High-Grade Patterns in Early-Stage Lung Adenocarcinoma: A Multicentric Analysis.

OBJECTIVE: The presence of micropapillary and solid adenocarcinoma patterns leads to a worse survival and a significantly higher tendency to recur. This study aims to assess the impact of pT descriptor combined with the presence of high-grade components on long-term outcomes in early-stage lung adenocarcinomas. METHODS: We retrospectively collected data of consecutive resected pT1-T3N0 lung adenocarcinoma from nine European Thoracic Centers. All patients who underwent a radical resection with lymph-node dissection between 2014 and 2017 were included. Differences in Overall Survival (OS) and Disease-Free Survival (DFS) and possible prognostic factors associated with outcomes were evaluated also after performing a propensity score matching to compare tumors containing non-high-grade and high-grade patterns. RESULTS: Among 607 patients, the majority were male and received a lobectomy. At least one high-grade histological pattern was seen in 230 cases (37.9%), of which 169 solid and 75 micropapillary. T1a-b-c without high-grade pattern had a significant better prognosis compared to T1a-b-c with high-grade pattern (p = 0.020), but the latter had similar OS compared to T2a (p = 0.277). Concurrently, T1a-b-c without micropapillary or solid patterns had a significantly better DFS compared to those with high-grade patterns (p = 0.034), and it was similar to T2a (p = 0.839). Multivariable analysis confirms the role of T descriptor according to high-grade pattern both for OS (p = 0.024; HR 1.285 95% CI 1.033-1.599) and DFS (p = 0.003; HR 1.196, 95% CI 1.054-1.344, respectively). These results were confirmed after the propensity score matching analysis. CONCLUSIONS: pT1 lung adenocarcinomas with a high-grade component have similar prognosis of pT2a tumors.

Pathological and clinical features of multiple cancers and lung adenocarcinoma: a multicentre study.

OBJECTIVES: Lung cancer is increasingly diagnosed as a second cancer. Our goal was to analyse the characteristics and outcomes of early-stage resected lung adenocarcinomas in patients with previous cancers (PC) and correlations with adenocarcinoma subtypes. METHODS: We retrospectively reviewed data of patients radically operated on for stage I-II lung adenocarcinoma in 9 thoracic surgery departments between 2014 and 2017. Overall survival (OS) and time to disease relapse were evaluated between subgroups. RESULTS: We included 700 consecutive patients. PC were present in 260 (37.1%). Breast adenocarcinoma, lung cancer and prostate cancer were the most frequent (21.5%, 11.5% and 11.2%, respectively). No significant differences in OS were observed between the PC and non-PC groups (P = 0.378), with 31 and 75 deaths, respectively. Patients with PC had smaller tumours and were more likely to receive sublobar resection and to be operated on with a minimally invasive approach. Previous gastric cancer (P = 0.042) and synchronous PC (when diagnosed up to 6 months before lung adenocarcinoma; P = 0.044) were related, with a worse OS. Colon and breast adenocarcinomas and melanomas were significantly related to a lower incidence of high grade (solid or micropapillary, P = 0.0039, P = 0.005 and P = 0.028 respectively), whereas patients affected by a previous lymphoma had a higher incidence of a micropapillary pattern (P = 0.008). CONCLUSIONS: In patients with PC, we found smaller tumours more frequently treated with minimally invasive techniques and sublobar resection, probably due to a more careful follow-up. The impact on survival is not uniform and predictable; however, breast and colon cancers and melanoma showed a lower incidence of solid or micropapillary patterns whereas patients with lymphomas had a higher incidence of a micropapillary pattern.

Prognostic role of standard uptake value according to pathologic features of lung adenocarcinoma.

OBJECTIVE: To evaluate the influence of lung adenocarcinoma second predominant pattern on the maximal standard uptake value (SUVmax) and its prognostic effect in different histologic groups. METHODS: We retrospectively collected surgically resected pathologic stage I and II lung adenocarcinoma from nine European institutions. Only patients who underwent preoperative PET-CT and with available information regarding SUVmax of T (SUVmaxT) and N1 (SUVmaxN1) component were included. RESULTS: We enrolled 344 patients with lung adenocarcinoma. SUVmaxT did not show any significant relation according to the second predominant pattern (p = 0.139); this relationship remained nonsignificant in patients with similar predominant pattern. SUVmaxT influenced the disease-free survival in the whole cohort (p = 0.002) and in low- and intermediate-grade predominant pattern groups (p = 0.040 and p = 0.008, respectively). In the high-grade predominant pattern cohort and in the pathologic N1 cases, SUVmaxT lost its prognostic power. SUVmaxN1 did not show any significant correlation with predominant and second predominant patterns and did not have any prognostic impact on DFS. CONCLUSIONS: SUVmaxT is influenced only by the adenocarcinoma predominant pattern, but not by second predominant pattern. Concurrently, in high-grade predominant pattern and pN1 group the prognostic power of SUVmaxT becomes nonsignificant.

Minimally invasive treatment of diaphragmatic endometriosis: a 15-year single referral center's experience on 215 patients.

BACKGROUND: Diaphragmatic endometriosis (DE) is a rare and often misdiagnosed condition. Most of the times it is asymptomatic and due to the low accuracy of diagnostic tests, it is almost always detected during surgery for pelvic endometriosis. Its management is challenging and, until now, there are not guidelines about its treatment. METHODS: We describe a consecutive series of patients with DE managed by laparoscopy and videothoracoscopy (VATS) in our referral center in a period of 15 years. We developed a flow-chart classifying DE implants in foci, plaques and nodules and proposing an algorithm with the aim of standardizing the surgical approach. RESULTS: 215 patients were treated for DE. Lesions were almost always localized on the right hemidiaphragm (91%), and the endometriotic implants were distributed as: foci in 133 (62%), plaques in 24 (11%) and nodules in 58 patients (27%), respectively. In all cases of isolated pleural involvement, concomitant diaphragmatic hernia or lesions of the thoracic side of the diaphragm VATS was performed, alone or combined with laparoscopy, resulting in a total of 26 procedures. Following the proposed algorithm, specific surgical techniques were identified as the better approaches for the different types of the lesion, such as Argon Beam Coagulation and diathermocoagulation for diaphragmatic foci, peritoneal stripping for plaques, and nodulectomy or full-thickness resection of diaphragm for nodules. CONCLUSIONS: It is crucial to standardize the surgical approach of DE, according to the type of lesion, thus reducing the rate of under- or over-treatments and intra or postoperative complications. This kind of surgery should be performed in a Referral Center by a gynecologic surgeon with oncogynecologic expertise and skills, with the eventual support of a laparoscopic general surgeon, a specialized thoracic surgeon and a trained anesthesiologist.

Chest drain and thoracotomy for chest trauma.

Traumas are the leading cause of death in the first four decades of life. Nevertheless, thoracic traumas only seldom require invasive procedures. In particular, chest drain placement is required in case of pleural disruption causing haemothorax, pneumothorax or haemopneumothorax. Although large-bore chest drains have been traditionally used in case of haemothorax, recent evidences seem to question this routine, showing good performances of small-bore and pig tail drains. Although it is a common procedures, experience and training is needed to avoid complications which might be even lethal. Surgical exploration after thoracic trauma is rare, accounting for less than 3% of traumas. Penetrating traumas more likely require surgical exploration compared to blunt trauma. Anterolateral thoracotomy is usually performed in this setting, but also clamshell or hemi-clamshell approach can be used. In selected patients, minimally invasive techniques can be performed. Large randomized trials are still needed to assess and standardized the role of new tools and procedures in the thoracic trauma setting.

IgG4-related disease: a new challenging diagnosis mimicking lung cancer.

IgG4-related disease (IgG4-RD) is a progressive inflammatory disease that might rarely involve only the lungs. We retrospectively reviewed the preoperative, clinical and surgical features of patients with a pathology highly suggestive or probable diagnosis of IgG4-RD without extra-thoracic involvement. Five patients were selected, 2 were operated on the right side. Positron emission tomography-computed tomography (PET-CT) showed an uptake in all the patients (median 5.5), and 2 patients had an uptake at the thoracic lymph nodes. Two diagnoses were made through a CT-guided needle biopsy, while 3 were determined based on a lung wedge resection. The levels of serum IgG4 were elevated (>1.35 g/dl) in all the patients. Two patients had a highly suggestive diagnosis of IgG4-RD, and 3 patients had a probable diagnosis of IgG4-RD. The differential diagnosis between IgG4-RD and lung malignancies based only on radiological features is challenging and often requires histological confirmation. A careful preoperative workup and a multidisciplinary approach to PET-positive nodules might help to avoid unnecessary major lung resections.