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Cancer Medicine Jun 2020Urachal carcinoma is a rare nonurothelial malignant tumor with high rates of local recurrence and systemic metastasis. Although radical resection is widely considered...
BACKGROUND
Urachal carcinoma is a rare nonurothelial malignant tumor with high rates of local recurrence and systemic metastasis. Although radical resection is widely considered the standard treatment, there is still a debate regarding the benefits of lymphadenectomy. To explore these factors, we investigated the recurrence pattern of urachal cancer and the impact of lymphadenectomy on long-term survival.
METHODS
The data of 62 patients pathologically diagnosed with urachal carcinoma at Sun Yat-sen University Cancer Center from 2002 to 2019 were retrospectively reviewed. Lymphadenectomy was defined as lymph nodes retrieved from the obturator, internal iliac, and external iliac lymph node stations. The Kaplan-Meier method and Cox regression model were used to identify prognostic factors. OS and DFS were the primary endpoints.
RESULTS
Of the 47 males and 15 females included, 54 patients underwent partial cystectomy, and 27 patients underwent lymphadenectomy. The number of patients with Sheldon stage IIIA, IIIB, IIIC, IVA, and IVB were 43 (69.4%), 4 (6.5%) 3 (4.8%), 6 (9.7%), and 6 (9.7%), respectively. The median DFS was 32.7 months, and the mean OS was 114.6 months. Sheldon stage (P < .001) and tumor size (P = .001) were identified as independent prognostic factors for DFS, whereas Sheldon stage (P = .003), peritoneal metastasis (P = .006), distant metastasis (P = .024), and recurrence in pelvic lymph nodes (P = .015) were independent prognostic factors for OS.
CONCLUSIONS
Urachal carcinoma has a high recurrence rate, but only peritoneal metastasis, distant metastasis, and recurrence in pelvic lymph nodes were found to be associated with OS. Lymphadenectomy was recommended because of its role in accurately staging the disease, and further research is needed to focus on lymphadenectomy and standardized the procedure.
Topics: Adult; Aged; Cystectomy; Female; Follow-Up Studies; Humans; Lymph Node Excision; Male; Middle Aged; Neoplasm Recurrence, Local; Pelvic Neoplasms; Peritoneal Neoplasms; Prognosis; Retrospective Studies; Survival Rate; Urinary Bladder Neoplasms; Young Adult
PubMed: 32329250
DOI: 10.1002/cam4.3059 -
Medical Image Analysis Apr 2021Limb salvage surgery of malignant pelvic tumors is the most challenging procedure in musculoskeletal oncology due to the complex anatomy of the pelvic bones and soft...
Limb salvage surgery of malignant pelvic tumors is the most challenging procedure in musculoskeletal oncology due to the complex anatomy of the pelvic bones and soft tissues. It is crucial to accurately resect the pelvic tumors with appropriate margins in this procedure. However, there is still a lack of efficient and repetitive image planning methods for tumor identification and segmentation in many hospitals. In this paper, we present a novel deep learning-based method to accurately segment pelvic bone tumors in MRI. Our method uses a multi-view fusion network to extract pseudo-3D information from two scans in different directions and improves the feature representation by learning a relational context. In this way, it can fully utilize spatial information in thick MRI scans and reduce over-fitting when learning from a small dataset. Our proposed method was evaluated on two independent datasets collected from 90 and 15 patients, respectively. The segmentation accuracy of our method was superior to several comparing methods and comparable to the expert annotation, while the average time consumed decreased about 100 times from 1820.3 seconds to 19.2 seconds. In addition, we incorporate our method into an efficient workflow to improve the surgical planning process. Our workflow took only 15 minutes to complete surgical planning in a phantom study, which is a dramatic acceleration compared with the 2-day time span in a traditional workflow.
Topics: Bone and Bones; Humans; Image Processing, Computer-Assisted; Magnetic Resonance Imaging; Neural Networks, Computer; Pelvic Neoplasms
PubMed: 33550006
DOI: 10.1016/j.media.2020.101954 -
In Vivo (Athens, Greece) 2019Although pelvic exenteration is an aggressive surgical procedure, it remains almost the only curative solution for patients diagnosed with large pelvic malignancies. (Meta-Analysis)
Meta-Analysis
BACKGROUND/AIM
Although pelvic exenteration is an aggressive surgical procedure, it remains almost the only curative solution for patients diagnosed with large pelvic malignancies.
PATIENTS AND METHODS
We present a series of 100 patients submitted to pelvic exenteration with curative intent.
RESULTS
The origin of the primary tumor was most commonly represented by cervical cancer, followed by, endometrial cancer, rectal cancer, ovarian cancer and vulvo-vaginal cancer. An R0 resection was confirmed in 68 cases, while the remaining 32 cases presented lateral positive resection margins or perineal positive margins. The postoperative morbidity rate was 37% while the mortality rate was 3%. As for the-long term outcomes, the median overall survival time was 38.7 months, being most significantly influenced by the origin of the primary tumor.
CONCLUSION
Although pelvic exenteration is still associated with an increased morbidity, an important improvement in the long-term survival can be achieved, especially if radical resection is feasible.
Topics: Adult; Aged; Disease Management; Female; Humans; Male; Middle Aged; Neoplasm Grading; Neoplasm Recurrence, Local; Neoplasm Staging; Pelvic Exenteration; Pelvic Neoplasms; Prognosis; Treatment Outcome; Tumor Burden
PubMed: 31662557
DOI: 10.21873/invivo.11723 -
Anticancer Research Jun 2019This study aimed to report the location of abdominal relapse in patients with testicular cancer.
BACKGROUND/AIM
This study aimed to report the location of abdominal relapse in patients with testicular cancer.
MATERIALS AND METHODS
This is a retrospective cross-sectional study including patients who underwent abdominal magnetic resonance imaging (MRI) after treatment of testicular germ cell cancer. MRI reports were classified as negative or positive, and positive results were cross-checked with follow-up imaging and biopsy results. Positive histology or cytology defined a true-positive finding. The location of relapse was registered according to the anatomical site.
RESULTS
In a 2-year period, 2,315 MRI examinations were performed. Relapse was detected in 0.7% (95% CI=0.4-1.1) of the examinations. Among these, 75% were seminomas and 25% were non-seminomas. Retroperitoneal lymph nodes were affected in 88% of cases, and pelvic and inguinal lymph nodes affected in 12% of cases. No metastases were found in parenchymatous organs or bony structures.
CONCLUSION
All cases of abdominal relapse occurred in retroperitoneal or pelvic lymph nodes. This suggests that MRI should be directed towards the retroperitoneum and pelvis only.
Topics: Adolescent; Adult; Aged; Cross-Sectional Studies; Humans; Lymphatic Metastasis; Magnetic Resonance Imaging; Male; Middle Aged; Neoplasm Staging; Pelvic Neoplasms; Recurrence; Retroperitoneal Neoplasms; Retrospective Studies; Testicular Neoplasms; Young Adult
PubMed: 31177136
DOI: 10.21873/anticanres.13427 -
European Journal of Obstetrics,... Apr 2019Despite the benefits of concomitant radiotherapy and cisplatin for locally advanced cervical cancer, recurrence rates remain high. New treatment strategies such as...
OBJECTIVE
Despite the benefits of concomitant radiotherapy and cisplatin for locally advanced cervical cancer, recurrence rates remain high. New treatment strategies such as consolidation chemotherapy and different concomitant chemotherapy combinations have been tested in recent years. Identification of the best candidates for each treatment strategy could optimize results.
STUDY DESIGN
A retrospective review of data from 127 patients with locally advanced cervical cancer (International Federation of Gynecology and Obstetrics Stages IIB-IVA), treated at a single institution from 2005 to 2014. Risk factors for loco-regional and systemic recurrence, and prognostic factors for overall survival (OS) were analysed using Cox regression. Survival of patients treated with consolidation chemotherapy was compared with survival of patients not treated with consolidation chemotherapy in the role cohort and in a propensity-score-matched cohort.
RESULTS
With a median follow-up time of 48.7 months, loco-regional-recurrence-free survival (LRFS), distant-metastasis-free survival (DMFS) and OS at 5 years were 76.6%, 54.0% and 63.0%, respectively. On multivariate analysis, tumour size ≥6 cm was associated with shorter LRFS [hazard ratio (HR) 5.18; 95% confidence interval (CI) 1.45-18.45; p = 0.011], and adenocarcinoma (HR 2.48; 95% CI 1.10-5.57; p = 0.028) and positive lymph nodes (HR 2.21; 95% CI 1.303-4.72; p = 0.041) were associated with shorter DMFS. Tumour size ≥6 cm was associated with shorter OS (HR 2.64; 95% CI 1.09-6.35; p = 0.031). Twenty-two patients were treated with consolidation chemotherapy; on univariate analysis, these patients had longer OS compared with patients who were not treated with consolidation chemotherapy (p = 0.043). In a propensity-score-matched cohort, patients treated with consolidation chemotherapy had longer DMFS and OS compared with patients who were not treated with consolidation chemotherapy, although the difference was not significant.
CONCLUSIONS
Different risk factors are associated with loco-regional and distant metastases in patients with locally advanced cervical cancer, and could potentially lead to particular therapeutic strategies. Although the number of patients treated with consolidation chemotherapy in the study cohort was small, they seemed to live longer and to have better control of distant relapse then patients who were not treated with consolidation chemotherapy.
Topics: Adult; Aged; Aged, 80 and over; Antineoplastic Agents; Chemoradiotherapy; Cisplatin; Combined Modality Therapy; Disease-Free Survival; Female; Humans; Middle Aged; Multivariate Analysis; Neoplasm Recurrence, Local; Neoplasm Staging; Pelvic Neoplasms; Pelvis; Prognosis; Proportional Hazards Models; Retrospective Studies; Risk Factors; Treatment Outcome; Uterine Cervical Neoplasms; Young Adult
PubMed: 30771718
DOI: 10.1016/j.ejogrb.2019.01.028 -
Colorectal Disease : the Official... Oct 2021Postoperative functional outcomes following pelvic exenteration surgery for treatment of advanced or recurrent pelvic malignancies are poorly understood. The aim of this...
AIM
Postoperative functional outcomes following pelvic exenteration surgery for treatment of advanced or recurrent pelvic malignancies are poorly understood. The aim of this study was to determine the short-term functional outcomes following pelvic exenteration surgery using objective measures of physical function.
METHOD
Patients undergoing pelvic exenteration surgery between January 2017 and May 2020 were recruited at a single quaternary referral hospital in Sydney, Australia. The primary measures were the 6-min walk test (6MWT) and the five times sit to stand (5STS) test. Data were collected at baseline (preoperatively), 10 days postoperatively and at discharge from hospital, and were analysed according to tumour type, extent of exenteration, sacrectomy, length of hospital stay, major nerve resection and postoperative complications.
RESULTS
The cohort of patients that participated in functional assessments consisted of 135 patients, with a median age of 61 years. Pelvic exenteration patients had a reduced 6MWT distance preoperatively compared to the general population (P < 0.001). Following surgery, we observed a further decrease in 6MWT distance (P < 0.001) and an increase in time to complete 5STS (P < 0.001) at postoperative day 10 compared to baseline, with a slight improvement at discharge. There were no differences in 6MWT and 5STS outcomes between patients based on comparisons of surgical and oncological factors.
CONCLUSION
Pelvic exenteration patients are functionally impaired in the preoperative period compared to the general population. Surgery causes a further reduction in physical function in the short term; however, functional outcomes are not impacted by tumour type, extent of exenteration, sacrectomy or nerve resection.
Topics: Humans; Middle Aged; Neoplasm Recurrence, Local; Pelvic Exenteration; Pelvic Neoplasms; Prospective Studies; Retrospective Studies
PubMed: 34346149
DOI: 10.1111/codi.15834 -
Abdominal Imaging Oct 2015Medicine is evolving toward personalized care and this development entails the integration, amalgamation, and synchronized analysis of data from multiple sources....
Medicine is evolving toward personalized care and this development entails the integration, amalgamation, and synchronized analysis of data from multiple sources. Multimodality fusion imaging refers to the simultaneous visualization of spatially aligned and juxtaposed medical images obtained by two or more image modalities. PET/MRI scanners and MMFI platforms are able to improve the diagnostic workflow in oncologic patients and provide exquisite images that aid physicians in the molecular profiling and characterization of tissues. Advanced navigation platforms involving real-time ultrasound are promising tools for guiding personalized and tailored mini-invasive interventional procedures on technically challenging targets. The main objective of the present essay was to describe the current applications and future perspectives of multimodality fusion imaging for both diagnostic and interventional purposes in the field of abdominal and pelvic malignancies. We also outlined the technical differences between fusion imaging achieved by means of simultaneous bimodal acquisition (i.e., integrated PET/MRI scanners), retrospective co-registration, and multimodality fusion imaging involving ultrafast or real-time imaging modalities.
Topics: Abdominal Neoplasms; Humans; Multimodal Imaging; Pelvic Neoplasms
PubMed: 25952574
DOI: 10.1007/s00261-015-0435-7 -
International Journal of Gynaecology... Dec 2014To determine the incidence of regional lymph node involvement for early-stage endometrial cancer by using the Surveillance, Epidemiology, and End Results (SEER) registry.
OBJECTIVE
To determine the incidence of regional lymph node involvement for early-stage endometrial cancer by using the Surveillance, Epidemiology, and End Results (SEER) registry.
METHODS
In a retrospective study, data were analyzed from patients who were diagnosed with stage IA-IIB endometrioid adenocarcinoma and were treated between 1998 and 2003. The incidence of pelvic and para-aortic lymph node involvement was determined.
RESULTS
Data were analyzed from 4052 patients. Incidences of pelvic and para-aortic lymph node metastases were: 1% and 0% in stage IA, grade 1 disease; 2% and 0% in IA, grade 2; 2% and 1% in IA, grade 3; 2% and 0% in IB, grade 1; 3% and 1% in IB, grade 2; 3% and 2% in IB, grade 3; 7% and 3% in IC, grade 1; 8% and 5% in IC, grade 2; 12% and 8% in IC, grade 3; 7% and 3% in IIA, grade 1; 10% and 4% in IIA, grade 2; 10% and 5% in IIA, grade 3; 8% and 4% in IIB, grade 1; 13% and 8% in IIB, grade 2; and 19% and 12% in IIB, grade 3.
CONCLUSION
Incidences of pelvic and para-aortic metastases were lower than previously reported. Patients at higher stages and grades had a 10% or higher risk of lymph node involvement and might benefit from aggressive therapy.
Topics: Adult; Aged; Aged, 80 and over; Carcinoma, Endometrioid; Endometrial Neoplasms; Female; Humans; Lymph Nodes; Lymphatic Metastasis; Middle Aged; Neoplasm Staging; Para-Aortic Bodies; Pelvic Neoplasms; Retrospective Studies; SEER Program
PubMed: 25194213
DOI: 10.1016/j.ijgo.2014.06.022 -
Supportive Care in Cancer : Official... Nov 2019Visceral pain conducted by sympathetic fibers with pelvic and perineal origin can be treated using ganglion impar (GIB) or Walters' block in a simple and effective...
BACKGROUND
Visceral pain conducted by sympathetic fibers with pelvic and perineal origin can be treated using ganglion impar (GIB) or Walters' block in a simple and effective manner. This article aims to evaluate the effectiveness, security, and performance difficulty of GIB in patients with pelvic and perineal oncological pain.
METHODS
A retrospective study between January 2016 and August 2017. Patients with poorly controlled pelvic oncological pain and patients experimenting opioid side effects in which GIB was performed ambulatory were included. Prognostic GIB was performed, under echographic and fluoroscopic control, with local anesthetic and corticoid. The neurolytic block was performed under fluoroscopic guidance. The technique was performed by the same anesthetist with pain management competence. For statistical analysis, Microsoft Excel 2013® and IBM SPSS Statistics version 22.0 were used.
RESULTS
Fifteen patients were included. One patient was excluded. A statistical significant basal pain score reduction was observed ((median of the verbal numerical scale (VNS) 7 (p25 = 7; p75 = 8)) compared with 72 h median VNS 4 ((p25 = 3; p75 = 5.3) p = 0.001, and 3 months (median VNS 4 (p25 = 3, p75 = 7)) p = 0.003 after the procedure. Regarding morphine consumption, a statistically significant reduction was observed 3 months after GIB performance (p = 0.012).
DISCUSSION/CONCLUSION
GIB is a safe and easy-to-perform technique achieving satisfactory and statistically significant results, regarding pain control improvement and opioid consumption reduction in patients which meet selection criteria. Prospective, randomized studies with more patients are needed for further conclusions.
Topics: Cancer Pain; Female; Ganglia, Sympathetic; Humans; Male; Pain Management; Pelvic Neoplasms; Retrospective Studies
PubMed: 30880371
DOI: 10.1007/s00520-019-04738-9 -
The British Journal of Surgery Nov 2023Resection of pelvic bone tumors and the subsequent reconstruction of the pelvic girdle pose challenges due to complex anatomy, load-bearing demands, and significant...
Resection of pelvic bone tumors and the subsequent reconstruction of the pelvic girdle pose challenges due to complex anatomy, load-bearing demands, and significant defects. 3D-printed implants have revolutionized pelvic girdle reconstruction by offering customized solutions, porous surface structures for precise resection with custom guides, and improved integration. Many tertiary medical centers have adopted 3Dprinted hemipelvic endoprostheses, leading to enhanced outcomes. However, most studies are limited to single centers, with a small number of cases and short follow-up periods. Additionally, the design of these implants often relies heavily on individual experience, resulting in a lack of uniformity and significant variation. To provide a comprehensive assessment of this technology, we conducted an analysis of existing literature, encompassing tumor resection classification, various types of prosthesis design, reconstruction concepts, and post-reconstruction functional outcomes.
Topics: Humans; Printing, Three-Dimensional; Prosthesis Design; Sarcoma; Plastic Surgery Procedures; Pelvic Bones; Pelvic Neoplasms; Bone Neoplasms; Retrospective Studies; Treatment Outcome
PubMed: 37824784
DOI: 10.1093/bjs/znad310