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1.
Abdom Radiol (NY) ; 2024 Jun 25.
Article in English | MEDLINE | ID: mdl-38918241

ABSTRACT

Over the past several years, there has been a trend of decreasing screening or diagnostic fluoroscopic examinations ordered by clinical teams, particularly double contrast gastrointestinal studies. The underlying reason is due to increasing number of endoscopic procedures performed by Gastroenterology and Urology and usage of other imaging modalities, which are either more sensitive and/or offer the ability to obtain tissue for confirmation. Many fluoroscopic studies are now tailored toward patients who have undergone gastrointestinal or genitourinary oncologic surgeries, providing both functional and anatomic information, which are important tools for patient management. Some of these surgeries are very complex and an understanding of the postoperative anatomy and potential pitfalls is important to accurately evaluate for complications. The purpose of this article is to describe techniques and indications for common post-operative fluoroscopic procedures in gastrointestinal and genitourinary oncology while reviewing normal appearances. Complications, with emphasis on postoperative leaks, will be highlighted. Familiarity with the various types of gastrointestinal surgeries and urinary diversion techniques and knowledge of the expected postsurgical appearance is essential for achieving an accurate and prompt diagnosis of complications to allow for adequate treatment and management.

2.
Oncology ; 101(3): 153-158, 2023.
Article in English | MEDLINE | ID: mdl-36412619

ABSTRACT

INTRODUCTION: Gastroesophageal adenocarcinoma is relatively common in elderly patients as the incidence increases with age. However, the optimal treatment approach is not well established in this group of patients. The aim of this study is to review our experience for localized gastroesophageal adenocarcinoma in patients aged ≥80 years and to assess association between patient characteristics, clinical factors, and overall survival (OS) in order to optimize the therapeutic approaches for this population. METHODS: Patients ≥80 years old treated for localized gastroesophageal adenocarcinoma were retrospectively analyzed. Survival curves were estimated using the Kaplan-Meier method. Univariate and multivariate Cox proportional hazards regression models were applied to assess the association between patient characteristics and OS. Factors that were significant in the multivariate model were included in the final reduced model. RESULTS: 127 patients ≥80 years old, were included in this study with median age of 83 years. The median follow-up time was 3.2 years, and median OS was 2.5 years (95% CI: 2.0-3.1 years). Independent prognostic factors for OS were Eastern Cooperative Oncology Group (ECOG) performance status (PS) (p = 0.003), baseline clinical stage (p = 0.01), and surgery (p = 0.001). ECOG PS, tumor location, baseline stage, tumor grade, and surgery were included in the final reduced model. CONCLUSION: Surgical treatment can improve survival in elderly patients. Therapeutic decisions should be based on the patients' general condition rather that age alone.


Subject(s)
Adenocarcinoma , Aged , Humans , Aged, 80 and over , Prognosis , Retrospective Studies , Adenocarcinoma/drug therapy , Proportional Hazards Models
4.
Radiographics ; 41(7): 1954-1972, 2021.
Article in English | MEDLINE | ID: mdl-34678102

ABSTRACT

Mucosal melanomas (MMs) are rare and aggressive tumors that arise from melanocytes in the mucosal tissues that line the respiratory, gastrointestinal, and urogenital tracts. Most MMs occur during the 6th and 7th decades of life. MMs may be asymptomatic but may also cause bleeding, pain, and itching, depending on the site of origin. Because of their asymptomatic or oligosymptomatic nature and the difficulty of visualizing them in some cases, they are often advanced tumors at patient presentation. MM staging varies depending on the site of the primary tumor. A simplified staging system allows classification of clinically localized disease as stage I, regional nodal involvement as stage II, and distant metastasis as stage III. MM differs genetically from its cutaneous counterparts. Common drivers in cutaneous melanoma such as B-raf proto-oncogene serine/threonine kinase (BRAF) have a lower mutation rate in MM, whereas mutations of other genes including the KIT proto-oncogene, receptor tyrosine kinase (KIT) and splicing factor 3b subunit 1 gene (SF3B1) are more common in MM. Complete resection is the best curative option. However, surgical intervention with wide local excision and negative margins may be difficult to attain because of the local anatomy and the extent of disease. In addition, despite aggressive surgical resection, most patients develop local recurrence and metastatic disease. Recent advances in the treatment of melanoma include immunotherapy and targeted therapy. Unfortunately, MMs have a relatively poor prognosis, with an overall 5-year survival rate of 25%. Online supplemental material is available for this article. ©RSNA, 2021.


Subject(s)
Melanoma , Skin Neoplasms , Humans , Melanoma/diagnostic imaging , Melanoma/genetics , Melanoma/therapy , Mucous Membrane , Mutation , Proto-Oncogene Mas , Proto-Oncogene Proteins B-raf , Skin Neoplasms/diagnostic imaging , Skin Neoplasms/genetics , Skin Neoplasms/therapy
5.
Oncology ; 99(10): 659-664, 2021.
Article in English | MEDLINE | ID: mdl-34352788

ABSTRACT

BACKGROUND: The value of baseline fluorodeoxyglucose-positron emission tomography-computed tomography (PET-CT) remains uncertain once gastroesophageal cancer is metastatic. We hypothesized that assessment of detailed PET-CT parameters (maximum standardized uptake value [SUVmax] and/or total lesion glycolysis [TLG]), and the extent of metastatic burden could aid prediction of probability of response or prognosticate. METHODS: We retrospectively analyzed treatment-naive patients with stage 4 gastroesophageal cancer (December 2002-August 2017) who had initial PET-CT for cancer staging at MD Anderson Cancer Center. SUVmax and TLG were compared with treatment outcomes for the full cohort and subgroups based on metastatic burden (≤2 or >2 metastatic sites). RESULTS: We identified 129 patients with metastatic gastroesophageal cancer who underwent PET-CT before first-line therapy. The median follow-up time was 61 months. The median overall survival (OS) was 18.5 months; the first progression-free survival (PFS) was 5.5 months. SUVmax or TLG of the primary tumor or of all metastases combined had no influence on OS or PFS, whether the number of metastases was ≤2 or >2. Overall response rates (ORRs) to first-line therapy were 48% and 45% for patients with ≤2 and >2 metastases, respectively (nonsignificant). ORR did not differ based on low or high values of SUVmax or TLG. CONCLUSIONS: This is the first assessment of a unique set of PET-CT data and its association with outcomes in metastatic gastroesophageal cancer. In our large cohort of patients, detailed analyses of PET-CT (by SUVmax and/or TLG) did not discriminate any parameters examined. Thus, baseline PET-CT in untreated metastatic gastroesophageal cancer patients has limited or no utility.


Subject(s)
Esophageal Neoplasms/diagnostic imaging , Esophageal Neoplasms/mortality , Esophagogastric Junction/diagnostic imaging , Stomach Neoplasms/diagnostic imaging , Stomach Neoplasms/mortality , Adult , Aged , Aged, 80 and over , Esophageal Neoplasms/pathology , Esophagogastric Junction/pathology , Female , Humans , Male , Middle Aged , Neoplasm Metastasis , Positron Emission Tomography Computed Tomography , Progression-Free Survival , Proportional Hazards Models , Retrospective Studies , Stomach Neoplasms/pathology , Survival Rate , Texas/epidemiology
6.
Abdom Radiol (NY) ; 45(4): 1141-1154, 2020 04.
Article in English | MEDLINE | ID: mdl-31190089

ABSTRACT

PURPOSE: To determine whether staging pelvic magnetic resonance imaging (MRI) can distinguish malignant mixed Müllerian tumor (MMMT) from EC. METHODS: Thirty-seven treatment-naïve patients with histologically proven uterine MMMT and 42 treatment-naïve patients with EC, treated at our institution, were included in our retrospective study. Staging pelvic MRI scans were reviewed for tumor size, prolapse through cervical os, and other features. Time-intensity curves for tumor and surrounding myometrium regions of interest were generated, and positive enhancement integral (PEI), maximum slope of increase (MSI), and signal enhancement ratio (SER) were measured. The Fisher's exact test or Wilcoxon rank-sum test was used to compare characteristics between disease groups. Multivariate and univariate logistic regression models were used to distinguish MMMT from EC. Receiver operating characteristic analysis and the area under the curve (AUC) were used to evaluate prediction ability. RESULTS: MMMTs were larger than ECs with higher rate of tumor prolapse and more heterogeneous tumor enhancement compared to ECs. During the late phase of contrast enhancement, 100% of ECs, but only 84% of MMMTs, had lower signal intensity than the myometrium. Threshold PEI ratio ≥ 0.67 predict MMMT with 76% sensitivity, 84%, specificity and 0.83 AUC. Threshold SER ≤ 125 predict MMMT with 90% sensitivity, 50% specificity, and 0.72 AUC. CONCLUSION: MMMTs may show more frequent tumor prolapse, more heterogeneous enhancement, delayed iso- or hyper-enhancement, higher PEI ratios, and lower tumor SERs compared with EC. MRI can be used as a biomarker to distinguish MMMT from EC based on the enhancement pattern.


Subject(s)
Endometrial Neoplasms/diagnostic imaging , Magnetic Resonance Imaging/methods , Mixed Tumor, Mullerian/diagnostic imaging , Uterine Neoplasms/diagnostic imaging , Adult , Aged , Aged, 80 and over , Endometrial Neoplasms/pathology , Female , Humans , Middle Aged , Mixed Tumor, Mullerian/pathology , Neoplasm Staging , Retrospective Studies , Sensitivity and Specificity , Tumor Burden , Uterine Neoplasms/pathology
7.
Semin Ultrasound CT MR ; 40(4): 280-286, 2019 Aug.
Article in English | MEDLINE | ID: mdl-31375168

ABSTRACT

Cervical carcinoma remains a common gynecologic malignancy. Physical examination has historically served as the predominant tool for staging and assessment, in part due to lack of availability of additional diagnostic resources in many parts of the world. Cross-sectional imaging in the evaluation of cervical cancer has become standard of care in developed countries, and has recently been incorporated into the official staging classification of the International Federation of Gynecology and Obstetrics. This article will describe the use of computed tomography, magnetic resonance imaging, and positron emission tomography/computed tomography and positron emission tomography/magnetic resonance imaging in cervical cancer patients, review optimal techniques for MR evaluation of the cervix, and describe key aspects of staging and management of cervical carcinoma.


Subject(s)
Diagnostic Imaging/methods , Uterine Cervical Neoplasms/diagnostic imaging , Uterine Cervical Neoplasms/pathology , Cervix Uteri/diagnostic imaging , Cervix Uteri/pathology , Female , Humans , Magnetic Resonance Imaging , Multimodal Imaging , Neoplasm Staging , Positron Emission Tomography Computed Tomography , Positron-Emission Tomography , Pregnancy , Tomography, X-Ray Computed
9.
Clin Genitourin Cancer ; 17(1): e216-e220, 2019 02.
Article in English | MEDLINE | ID: mdl-30454970

ABSTRACT

Oncocytic neoplasms are rare tumors arising in the adrenal glands and usually considered as nonfunctional and benign. We report 4 cases of adrenal oncocytic neoplasm. The paucity of literature describing this entity increases the chance for misdiagnosis. Confirmatory diagnosis is by tissue sampling with adrenalectomy as the mainstay of treatment.


Subject(s)
Adrenal Cortex Neoplasms/pathology , Adrenal Cortex/pathology , Adrenal Cortex/surgery , Adrenal Cortex Neoplasms/surgery , Adrenalectomy , Adult , Female , Humans , Middle Aged , Prognosis , Young Adult
10.
J Med Imaging (Bellingham) ; 5(3): 031409, 2018 Jul.
Article in English | MEDLINE | ID: mdl-29750178

ABSTRACT

Frequently, the consensus conclusion after quality assurance conferences in radiology is that whatever mistake was made could have been avoided if more prior images or documents had been consulted. It is generally assumed that anything that was not specifically cited in the report had not been consulted. Is it actually safe to assume that an image or document that is not cited was also not consulted? It is this question that this investigation addresses. In this Institutional Review Board-approved study, one observer watched the board-certified radiologists while they interpreted imaging studies and issued reports. He recorded what type of study was being interpreted [either computed tomography, magnetic resonance imaging, or conventional radiography (x-ray)]. He also recorded the number and type of prior imaging studies and documents that were consulted during the interpretation. These observations were then compared with the signed report to determine how many of the consulted imaging studies and documents were cited. Of the 198 previous imaging studies that the radiologists consulted, 116 (58.6%) were cited in a report. Of the 285 documents consulted, 3 (1.1%) were cited in a report. This difference in citation rate was statistically significant ([Formula: see text]). It cannot be safely assumed that an older radiologic image or medical document was not consulted during radiologic interpretation merely because it is not cited in the report. Radiologists often consult more old studies than they cite, and they do not cite the majority of prior documents that they consult.

11.
Clin Genitourin Cancer ; 16(4): e771-e776, 2018 08.
Article in English | MEDLINE | ID: mdl-29483044

ABSTRACT

Leiomyomas can develop in any organ containing smooth muscles. They most commonly occur in the gastrointestinal and the female genital tracts. Leiomyoma of the prostate is a rare, benign tumor. We report 3 cases of rare prostatic leiomyomas. The paucity of literature describing prostatic leiomyoma increases the chance for misdiagnosis. Fewer than 30 cases in the English literature, with none including magnetic resonance imaging, computed tomography (CT), ultrasound, positron emission tomography-CT, and pathological findings together were found. Over the past decade, there has been a shift in the management of prostatic leiomyomas. Prostatectomy was once considered a standard approach for treatment, but now nonsurgical treatment options such as embolization are preferred. Conservative management including surveillance is an option for asymptomatic patients.


Subject(s)
Leiomyoma/diagnostic imaging , Leiomyoma/surgery , Prostatic Neoplasms/diagnostic imaging , Prostatic Neoplasms/surgery , Ablation Techniques , Conservative Treatment , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Prostatectomy , Tomography, X-Ray Computed , Treatment Outcome
12.
PET Clin ; 13(2): 165-177, 2018 Apr.
Article in English | MEDLINE | ID: mdl-29482748

ABSTRACT

This article provides an overview of PET in cervical cancer, primarily with regard to the use of 18F-2-fluoro-2-deoxy-d-glucose-PET/computed tomography. A brief discussion of upcoming technologies, such as PET/MR imaging, is presented.


Subject(s)
Fluorodeoxyglucose F18 , Positron Emission Tomography Computed Tomography/methods , Radiographic Image Enhancement/methods , Uterine Cervical Neoplasms/diagnostic imaging , Uterine Cervical Neoplasms/pathology , Aged , Aged, 80 and over , Female , Humans , Middle Aged , Practice Guidelines as Topic
13.
Curr Probl Diagn Radiol ; 47(5): 333-339, 2018 Sep.
Article in English | MEDLINE | ID: mdl-28943050

ABSTRACT

Small Cell Carcinoma of the Ovary, Hypercalcemic Type (SCCOHT) is a rare, aggressive malignancy with a poor prognosis. Its features are difficult to differentiate from other ovarian malignancies. In this article, we discuss recent advances in our understanding of this rare malignancy including tumor genetics. We also describe demographic, clinical and imaging findings, staging, and treatment options.


Subject(s)
Carcinoma, Small Cell/diagnostic imaging , Hypercalcemia/diagnostic imaging , Ovarian Neoplasms/diagnostic imaging , Biomarkers, Tumor/analysis , Carcinoma, Small Cell/epidemiology , Carcinoma, Small Cell/genetics , Carcinoma, Small Cell/pathology , Diagnosis, Differential , Female , Humans , Hypercalcemia/epidemiology , Hypercalcemia/genetics , Hypercalcemia/pathology , Neoplasm Staging , Ovarian Neoplasms/epidemiology , Ovarian Neoplasms/genetics , Ovarian Neoplasms/pathology
14.
Br J Cancer ; 118(3): 331-337, 2018 02 06.
Article in English | MEDLINE | ID: mdl-29235564

ABSTRACT

BACKGROUND: A randomised phase 2 trial of trimodality with or without induction chemotherapy (IC) in oesophageal cancer (EC) patients showed no advantage in overall survival (OS) or pathologic complete response rate. To identify subsets that might benefit from IC, a secondary analysis was done. METHODS: The trial had accrued 126 patients (NCT 00525915). Recursive partitioning and proportional hazards regression with interactions were performed. RESULTS: The median follow-up of surviving patients was 6.7 years and the median OS duration was 3.8 years (95% confidence interval (CI), 2.6-5.8 years). OS was associated with tumour length (P=0.03), cT (P=0.02), cN (P=0.04), clinical stage (P=0.01), and tumour grade (P<0.001). The effect of IC differed according to tumour grade. Among patients with well or moderately differentiated (WMD) ECs (n=59), the 5-year survival rate was 74% with IC and 50% without IC, P=0.001. IC had no effect on OS of patients with poorly differentiated (PD) ECs (31% and 28%, respectively; interaction, P=0.04; IC, P=0.03). In the multivariate reduced model, WMD with IC was an independent prognosticator for better OS (HR=0.41, 95% CI, 0.25-0.67; P=<0.001). The following four EC phenotypes emerged for OS: (1) very high risk (PD, cN2/N3), (2) high risk (PD, cN0/N1, stage cIII), (3) moderate risk (PD, cN0/N1, stage cI/II or WMD without IC), and (4) low risk (WMD with IC). The 5-year survival rates were 11%, 27%, 48%, and 74%, respectively (P<0.001). CONCLUSIONS: Our data show that IC significantly prolonged OS of WMD EC patients who undergo trimodality; prospective evaluation is needed.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Cell Differentiation , Esophageal Neoplasms/pathology , Esophageal Neoplasms/therapy , Induction Chemotherapy , Adult , Aged , Chemoradiotherapy, Adjuvant , Chemotherapy, Adjuvant , Esophagectomy , Female , Fluorouracil/administration & dosage , Humans , Male , Middle Aged , Neoadjuvant Therapy , Neoplasm Grading , Neoplasm Staging , Oxaliplatin/administration & dosage , Proton Therapy , Risk Factors , Survival Rate , Tumor Burden
15.
Target Oncol ; 13(1): 99-106, 2018 02.
Article in English | MEDLINE | ID: mdl-29218623

ABSTRACT

BACKGROUND: Early metabolic response after preoperative induction chemotherapy (IC) appears to predict histologic response and prognosis in esophageal cancer (EC), but the usefulness of this approach needs further development. OBJECTIVE: We evaluated metabolic response after one cycle of IC using positron emission tomography (PET) to correlate PET response and outcomes. PATIENTS AND METHODS: We retrospectively analyzed PET data from a randomized phase 2 trial (NCT00525915) of chemoradiation and surgery with or without IC for the treatment of EC. PET was performed at baseline, after one cycle of IC, and 5-7 weeks after chemoradiation. The relationship between PET response (≥35% reduction in standardized uptake value [SUV]) after IC and treatment response was analyzed. RESULTS: In 63 patients who received IC, the mean initial SUVmax prior to treatment was 11.9 ± 8.04 and mean SUVmax after one cycle of IC was 6.47 ± 4.45. The mean SUV reduction after IC was 39.3%. Eleven of 37 PET responders achieved a pathologic complete response (pCR), but only two of 22 PET non-responders did (univariate logistic regression; odds ratio: 4.25, 95% confidence interval: 0.83-21.77; p = 0.08). PET responders to IC had significantly longer overall survival (OS) than PET nonresponders (log-rank p = 0.009). PET response after chemoradiation was not correlated with OS (log-rank p = 0.15). CONCLUSION: Early PET response after IC is prognostic, but subsequent PET changes (for example, after chemoradiation) are not prognostic. Early PET response might have the potential of predicting pCR.


Subject(s)
Esophageal Neoplasms/drug therapy , Induction Chemotherapy/methods , Adult , Aged , Esophageal Neoplasms/pathology , Female , Humans , Male , Middle Aged , Prognosis , Prospective Studies , Retrospective Studies
16.
Oncotarget ; 8(46): 81430-81440, 2017 Oct 06.
Article in English | MEDLINE | ID: mdl-29113402

ABSTRACT

PURPOSE: After therapy of localized gastric adenocarcinoma (GAC) patients, the costs of surveillance, relapse patterns, and possibility of salvage are unknown. MATERIALS AND METHODS: We identified 246 patients, who after having a negative peritoneal staging, received therapy (any therapy which included surgery) and were surveyed (every 3-6 months in the first 3 years, then yearly; ∼10 CTs and ∼7 endoscopies per patient). We used the 2016 Medicare dollars reimbursed as the "costs" for surveillance. RESULTS: Common features were: Caucasians (57%), men (60%), poorly differentiated histology (76%), preoperative chemotherapy (74%), preoperative chemoradiation (59%), and had surgery (100%). At a median follow-up of 3.7 years (range, 0.1 to 18.3), the median overall survival (OS) was 9.2 years (95% CI, 6.0 to 11.2). Tumor grade (p = 0.02), p/yp stage (p < 0.001), % residual GAC (p = 0.05), the R status (p = 0.01), total gastrectomy (p = 0.001), and relapse type (p = 0.02) were associated with OS. Relapse occurred in 79 (32%) patients (only 8% were local-regional) and 90% occurred within 36 months of surgery. P/yp stage (p < 0.001) and total gastrectomy (p = 0.01) were independent prognosticators for OS in the multivariate analysis. Only 1 relapsed patient had successful salvage therapy. The estimated reimbursement for imaging studies and endoscopies was $1,761,221.91 (marked underestimation of actual costs). CONCLUSIONS: The median OS of localized GAC patients was excellent with infrequent local-regional relapses. Rigorous surveillance had a low yield and high "costs". Our data suggest that less frequent surveillance intervals and limiting expensive investigations to symptomatic patients may be warranted.

17.
Ann Surg Oncol ; 24(12): 3667-3672, 2017 Nov.
Article in English | MEDLINE | ID: mdl-28831698

ABSTRACT

BACKGROUND: Mucinous appendiceal neoplasms can contain radiopaque calcifications. Whether appendiceal radiographic calcifications indicate the presence of an appendiceal epithelial neoplasm is unknown. This study aimed to determine whether appendiceal calcifications detected by computed tomography (CT) correlate with the presence of appendiceal epithelial neoplasms. METHODS: From prospective appendiceal and pathology databases, 332 cases of appendiceal neoplasm and 136 cases of control appendectomy were identified, respectively. Only cases with preoperative CT scans available for review were included in the study. Images were reviewed by two abdominal radiologists. Sensitivity, specificity, negative predictive value (NPV), and positive predictive value (PPV) were calculated, and the kappa statistic was used to determine agreement between the radiologists' interpretations. RESULTS: Interobserver agreement between the radiologists was substantial, with a kappa of 0.74. Appendiceal mural calcifications were identified on CT scans in 106 appendiceal neoplasm cases (32%) and in 1 control case (1%) (P = 0.0001). In the appendiceal neoplasm subgroup, the presence of radiographic calcifications was associated with mucinous histology (35% vs 17%; P = 0.006; odds ratio [OR], 0.38; 95% confidence interval [CI], 0.18-0.78) and with well-differentiated histologic grade (40% vs 24%; P = 0.002; OR, 0.47; 95% CI, 0.29-0.76). The findings showed a sensitivity of 31.9% (95% CI, 26.9-37.2%), a specificity of 99.3% (95% CI, 96-100%), a PPV of 99.1% (95% CI, 94.9-100%), and an NPV of 37.4% (95% CI, 32.4-42.6%). CONCLUSION: This case-control study showed that appendiceal mural calcifications detected on CT are associated with underlying appendiceal epithelial neoplasms and that the identification of incidental mural appendiceal calcifications may have an impact on decisions regarding surgical intervention.


Subject(s)
Appendiceal Neoplasms/pathology , Calcinosis/pathology , Neoplasms, Glandular and Epithelial/pathology , Tomography, X-Ray Computed/statistics & numerical data , Adolescent , Adult , Aged , Aged, 80 and over , Appendiceal Neoplasms/diagnostic imaging , Calcinosis/diagnostic imaging , Case-Control Studies , Female , Follow-Up Studies , Humans , Male , Middle Aged , Neoplasms, Glandular and Epithelial/diagnostic imaging , Predictive Value of Tests , Prospective Studies , Tomography, X-Ray Computed/methods , Young Adult
18.
Oncology ; 93(4): 243-248, 2017.
Article in English | MEDLINE | ID: mdl-28683449

ABSTRACT

BACKGROUND: Through a multidisciplinary decision-making process, we developed a strategy of systemic therapy followed by local consolidative therapy (chemoradiation with/without surgery) in selected patients with metastatic gastroesophageal carcinoma (mGEAC). Only after a consensus during multidisciplinary discussions, local therapy was initiated. METHODS: We identified 101 patients with mGEAC who had local consolidation. We evaluated the association between various clinical variables (location of the primary, location of metastases, duration of initial chemotherapy, histologic grade, and radiation dose) and overall survival (OS). RESULTS: Of 101 patients, 71 had a proximal primary (esophageal, Siewert type I or II), and 30 patients had a distal primary (Siewert type III or distal). The median OS was 25.7 months (95% confidence interval [CI] 22.3-32.8). The OS rates at 2 and 5 years were 53.8% (95% CI 44.7-64.8) and 20.7% (95% CI 13.4-31.9), respectively. OS was highly associated with the location of the primary (median of 22.8 months for Siewert I/II vs. 41.5 months for Siewert III or distal, p = 0.03). The duration of initial chemotherapy was highly associated with OS (median of 21.8 months for <3 months vs. 32.5 months for ≥3 months, p = 0.004). CONCLUSION: Some mGEAC patients with a favorable clinical course can achieve a ∼20% 5-year survival rate with an approach that uses initial chemotherapy followed by multidisciplinary discussion to proceed with consolidation with local therapy. Patients with distal GEAC and those who receive initial chemotherapy for ≥3 months are the maximum beneficiaries.


Subject(s)
Cancer Survivors , Esophageal Neoplasms/pathology , Esophageal Neoplasms/therapy , Esophagogastric Junction/pathology , Neoplasm Metastasis/therapy , Patient Selection , Stomach Neoplasms/pathology , Stomach Neoplasms/therapy , Adult , Aged , Aged, 80 and over , Antineoplastic Combined Chemotherapy Protocols , Combined Modality Therapy , Decision Making , Esophageal Neoplasms/drug therapy , Esophageal Neoplasms/radiotherapy , Female , Humans , Interdisciplinary Communication , Male , Middle Aged , Retrospective Studies , Stomach Neoplasms/drug therapy , Stomach Neoplasms/radiotherapy , Survival Rate , Treatment Outcome
19.
J Gastrointest Oncol ; 8(6): 1009-1017, 2017 Dec.
Article in English | MEDLINE | ID: mdl-29299361

ABSTRACT

BACKGROUND: Over the last 15 years, large randomized controlled studies have validated the benefit of preoperative therapy for patients with resectable gastric cancer. Computed tomography (CT) and endoscopic ultrasonography (EUS) are commonly used to select patients for preoperative treatment, but studies of preoperative staging accuracy that focus on patient selection for preoperative therapy are rare; therefore, whether CT or EUS can reliably identify patients eligible for preoperative therapy is still unclear. Our purpose was to determine the accuracy of EUS and CT for preoperative staging of gastric cancer and to identify factors that may affect their usefulness in selecting patients for preoperative therapy. METHODS: We reviewed the medical records of 8,260 patients with gastric or gastroesophageal adenocarcinoma treated at our institution from 1995 to 2013, identifying those who underwent gastrectomy without preoperative treatment. We compared T stage and N status from preoperative EUS and CT reports with those drawn from surgical pathology reports. Clinicopathologic and demographic variables associated with incorrect preoperative staging were investigated using univariate and multivariate analyses. RESULTS: We identified 187 patients who underwent preoperative staging by EUS (n=145) and/or CT (n=134) before gastrectomy. The accuracy, sensitivity, and specificity of EUS in distinguishing stage T1 from more advanced tumors were 82%, 78%, and 85%, respectively. Variables associated with underestimation of EUS T stage were lymphovascular invasion [odds ratio (OR), 7.51; 95% confidence interval (CI), 1.91-29.50; P<0.01] and white race (OR, 3.75; 95% CI, 1.31-10.75; P=0.01). The accuracies, sensitivities, and specificities for determining N status were, respectively, 65%, 49%, and 79% with CT and 66%, 29%, and 95% with EUS. Lymphovascular invasion was associated with a false negative result (OR, 3.79; 95% CI, 1.34-10.70; P=0.01), and well- or moderately differentiated histology was associated with a false positive result for CT N status (OR, 7.14; 95% CI, 2.00-25.44; P<0.01). CONCLUSIONS: EUS is accurate in distinguishing T1 from T2-T4 lesions; both CT and EUS have low sensitivities and high specificities in determining N status. These accuracies and variables associated with inaccurate staging, including race, should be considered when selecting gastric cancer patients for preoperative therapy.

20.
Ann Surg Oncol ; 24(8): 2291-2301, 2017 Aug.
Article in English | MEDLINE | ID: mdl-27770339

ABSTRACT

BACKGROUND: Older patients with localized gastric adenocarcinoma (LGAC) have substantial postoperative morbidity and mortality; however, postoperative outcomes of the patients who receive preoperative chemotherapy and/or chemoradiation have not been reported. We examined the impact of age at baseline on potential predictors of postoperative outcomes. METHODS: Patients with LGAC who were treated with chemotherapy and/or chemoradiation followed by surgery (n = 203) formed two groups: (1) ≥65 years old (n = 70) and (2) <65 years old (n = 133). We assessed postoperative morbidity and mortality as well as overall survival (OS) and progression-free survival (PFS). Potential predictors of 90-day postoperative outcomes were identified i) by age groups and ii) other clinical covariates. Descriptive statistics and survival analyses were utilized. RESULTS: 90-day postoperative morbidity was similar in older and younger patients (61 % vs 58 %; P = 0.655). 90-day mortality was similar (3 % vs 0 %; P = 0.118). Major Clavien grade III/IV complications were similar (17 % vs 12 %; P = 0.392). OS and PFS were also similar for both groups (P = 0.863 and P = 0.558, respectively). Other factors, such as Charlson comorbidity index (P < 0.001) and median operative time (P = 0.002) were strongly associated with postoperative complications. CONCLUSION: Our data show that older patients with LGAC generally have similar outcomes as do younger patients after preoperative therapy but comorbidity indices have significant impact on complications and the long-term outcomes rather than age.


Subject(s)
Adenocarcinoma/mortality , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Chemoradiotherapy/mortality , Comorbidity , Esophageal Neoplasms/mortality , Postoperative Complications/mortality , Stomach Neoplasms/mortality , Adenocarcinoma/pathology , Adenocarcinoma/therapy , Age Factors , Aged , Combined Modality Therapy , Esophageal Neoplasms/pathology , Esophageal Neoplasms/therapy , Female , Follow-Up Studies , Humans , Male , Neoadjuvant Therapy/mortality , Preoperative Care , Prognosis , Retrospective Studies , Stomach Neoplasms/pathology , Stomach Neoplasms/therapy , Survival Rate
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