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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 -
Orthopaedic Surgery May 2017Giant cell tumor of the bone (GCTB) is a locally aggressive tumor with a certain distant metastatic rate. For sacral GCT (SGCT) and pelvic GCT (PGCT), surgery has its... (Review)
Review
Giant cell tumor of the bone (GCTB) is a locally aggressive tumor with a certain distant metastatic rate. For sacral GCT (SGCT) and pelvic GCT (PGCT), surgery has its limitations, especially for unresectable or recurrent tumors. Selective arterial embolization (SAE) is reported to be an option for treatment in several cases, but there are few systematic reviews on the effects of SAE on SGCT and/or PGCT. Medline and Embase databases were searched for eligible English articles. Inclusion and exclusion criteria were conducted before searching. All the clinical factors were measured by SPSS software, with P-values ≤0.05 considered statistically significant. A total of 9 articles were retrieved, including 44 patients receiving SAE ranging from 1 to 10 times. During the mean follow-up period of 85.8 months, the radiographic response rate was 81.8%, with a local control and overall survival rate of 75% and 81.8%, respectively. No bowel, bladder, or sexual dysfunction was observed. Three patients developed distant metastases and finally died. Patients with primary tumors tended to have better prognosis than those with recurrence (P = 0.039). The favorable outcomes of SAE suggest that it may be an alternative treatment for SGCT and PGCT patients for whom surgery is not appropriate.
Topics: Adolescent; Adult; Aged; Bone Neoplasms; Embolization, Therapeutic; Female; Giant Cell Tumor of Bone; Humans; Male; Middle Aged; Pelvic Bones; Pelvic Neoplasms; Sacrum; Spinal Neoplasms; Treatment Outcome; Young Adult
PubMed: 28644557
DOI: 10.1111/os.12336 -
Medicine Aug 2022Extrauterine leiomyoma occasionally occurs in rare locations with unusual growth patterns, especially pelvic retroperitoneal leiomyoma, which brings great challenges for...
RATIONALE
Extrauterine leiomyoma occasionally occurs in rare locations with unusual growth patterns, especially pelvic retroperitoneal leiomyoma, which brings great challenges for surgeons to make a diagnosis. It is essential to distinguish benign from malignant retroperitoneal neoplasms according to the imaging manifestations. Laparotomy and laparoscopy are the common options for pelvic retroperitoneal neoplasms, while they may cause side effects during operation such as secondary damage. Appropriate surgical techniques should be adopted to ensure the complete excision of neoplasms meanwhile preserve the urination, defecation, and sexual function.
PATIENT CONCERNS
A 30-year-old woman was referred to our hospital because of dull pain in the perianal region for 1 month. Laboratory results including tumor markers were all within normal limits. The digital rectal examination revealed a huge and tough mass with smooth mucosa protruding into the rectal cavity from the rear area of rectum.
DIAGNOSIS
Imaging examinations were performed. Contrasted computed tomography (CT) of pelvis showed an enhanced retroperitoneal solid mass in the space between sacrum and rectum, and very close to the levator ani muscle. The mass was about 11.0*8.0 cm in size. Computerized tomography angiography (CTA) showed the distal branches of bilateral internal iliac artery went into the mass. Endoscopic ultrasonography (US) showed the mass compressed the rectum, as well as a clear boundary to the rectal wall. A histopathologic examination confirmed the mass was a pelvic retroperitoneal leiomyoma.
INTERVENTIONS
The patient underwent an operative resection with da Vinci Si surgical system after routine preoperative preparation. Anorectal motility was weekly monitored postoperation. No additional adjuvant therapy was performed.
OUTCOMES
The patient could walk after 1 day and defecate normally on the third day after operation. She was discharged on the seventh postoperative day. No adverse events including pelvic floor hernia or defecation dysfunction occurred in the follow-up period. At 4 weeks follow-up, the patient was pain-free and recovered well.
LESSONS
Although imaging examinations were crucial for retroperitoneal neoplasms, histopathological examination remains the "gold standard" for making a definite diagnosis. This case highlights the possibility of retroperitoneal leiomyoma occurring in a woman of reproductive age and the advantages of robotic surgical system in pelvic retroperitoneal surgeries.
Topics: Adult; Female; Humans; Leiomyoma; Pelvic Neoplasms; Pelvis; Retroperitoneal Neoplasms; Retroperitoneal Space; Robotics
PubMed: 35945744
DOI: 10.1097/MD.0000000000029650 -
Medicine Apr 2020Pelvic mass onset following a hysterectomy due to benign disease is not rarely seen. Appropriate diagnosis and treatment are of great importance.This study aims to... (Comparative Study)
Comparative Study Observational Study
Pelvic mass onset following a hysterectomy due to benign disease is not rarely seen. Appropriate diagnosis and treatment are of great importance.This study aims to analyze the clinicopathological features of patients who have received surgery for pelvic mass following hysterectomy due to gynecological benign disease, especially endometriosis or adenomyosis.This study retrospectively analyzed the patients undergone reoperation for pelvic mass subsequently to hysterectomy from January 2012 to December 2016 in a tertiary teaching hospital.A total of 247 patients were enrolled in this study. There is a significant difference between the patients with or without a history of endometriosis/adenomyosis. Multivariate analysis showed that the pelvic mass had a higher risk of being ovarian endometrioid carcinoma, ovarian clear cell carcinoma, ovarian endometriosis, and ovarian physiological cysts in patients with a history of adenomyosis/endometriosis.The pathology of the subsequent pelvic mass inclines to be benign, includes ovarian endometriosis, ovarian physiological cysts, and pelvic encapsulated effusion. Postoperative adjuvant therapy for those received hysterectomy due to endometriosis/adenomyosis, like gonadotropin releasing hormone agonists (GnRHa), may contribute to the prevention of benign pelvic mass. Patients with a history of hysterectomy due to endometrisos/adenomyosis tend to have a shorter time interval between hysterectomy and pelvic malignant tumors onset.
Topics: Adenomyosis; Adult; Aged; Chemotherapy, Adjuvant; Endometriosis; Female; Gonadotropin-Releasing Hormone; Humans; Hysterectomy; Middle Aged; Neoplasms; Ovarian Neoplasms; Pelvic Neoplasms; Postoperative Care; Reoperation; Retrospective Studies; Risk Assessment
PubMed: 32282727
DOI: 10.1097/MD.0000000000019712 -
Il Giornale Di Chirurgia 2016Urology pertinent neuroendocrine neoplasias are more and more driving to research attractive contributions mainly as regards the urinary tract paragangliomas, besides...
Urology pertinent neuroendocrine neoplasias are more and more driving to research attractive contributions mainly as regards the urinary tract paragangliomas, besides the prostate cancer neuroendocrine differentiation. About such visceral sympathetic paragangliomas, a considerable attention is aroused by those concerning the renal pelvis, urinary bladder and, particularly, the prostate gland. Essential catecholamine/adrenergic signal-mediated pathophysiological implications and outlined diagnostic approaches are here taken into consideration. Particularly, to reach an accurate functional diagnostic assessment, both plasma and urine catecholamine level tests are required together with ¹²³I or ¹³¹I-meta-iodobenzylguanidine (MIBG) scan while ¹³¹I-, instead of ¹²³I-, labeled MIBG, proving to be also useful to targeted radionuclide therapy of sympathetic paragangliomas. Nevertheless, a thorough diagnostic confirmation should be obtained by a proper histologic/ immunohistochemical study, so that it respectively highlighting the typical "zellballen" cell setting and neuroendocrine tumor cell specific biomarkers such as chromogranin-A, synaptophysin, neuron-specific enolase. Open/laparoscopic/robot-assisted surgical procedures are performed under α1 (doxazosin, prazosin) - and β(propranolol)-adrenergic blockade to avoid the risk of an intraoperative adrenergic signal-triggered hypertensive crisis, what moreover may occur also during cystoscopy and biopsy in case of bladder or prostate paraganglioma. Given a conceivable likeness, about some adrenergic-mediated pathophysiological implications, between prostate paraganglioma and prostate cancer neuroendocrine transdifferentiation - although as regards two obviously different diseases - a reliable pathogenetic matter concerning prostate paraganglioma is requiring novel research approaches.
Topics: Biomarkers; Catecholamines; Chromogranin A; Diagnosis, Differential; Humans; Kidney Pelvis; Male; Neuroendocrine Tumors; Paraganglioma; Pelvic Neoplasms; Phosphopyruvate Hydratase; Predictive Value of Tests; Prostatic Neoplasms; Sensitivity and Specificity; Synaptophysin; Urinary Bladder Neoplasms; Urology
PubMed: 27381689
DOI: 10.11138/gchir/2016.37.2.055 -
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 -
International Journal of Clinical and... 2014Hemangioblastoma of soft tissue is a very rare tumor of uncertain histological type. Herein, we reported a 51-year-old woman was found to have a solid and cystic mass... (Review)
Review
Hemangioblastoma of soft tissue is a very rare tumor of uncertain histological type. Herein, we reported a 51-year-old woman was found to have a solid and cystic mass measuring 31×30 mm in the right adnexa area on a computed tomography scan. The tumor showed the typical histology of hemangioblastoma. Tumor was composed of numerous capillaries and stromal cells with cytoplasmic vacuolization. Immunohistochemical study revealed that the tumor stromal cells were positive for CD56, S-100 protein, NSE, Syn, CgA, and inhibin-α. Focal EMA positivity was present. Ki-67 expression was found in approximately 1% of tumor cells. The tumor cells were negative for CK, HMB-45, Melan-A, SMA, and CD68. The differential diagnosis of Hemangioblastoma arising in pelvic cavity includes hemangioma, hemangioendothelioma, liposarcoma, renal cell carcinoma, fat-forming solitary fibrous tumor, paraganglioma, and perivascular epithelioid cell tumor (PEComa).
Topics: Biomarkers, Tumor; Biopsy; Diagnosis, Differential; Female; Hemangioblastoma; Humans; Immunohistochemistry; Middle Aged; Pelvic Neoplasms; Predictive Value of Tests; Tomography, X-Ray Computed
PubMed: 25400795
DOI: No ID Found -
Asian Journal of Surgery Nov 2023
Topics: Humans; Sarcoma; Soft Tissue Neoplasms; Pelvic Neoplasms; Biomarkers, Tumor
PubMed: 37268470
DOI: 10.1016/j.asjsur.2023.05.088