No abstract available.
Autografts ; Goldenhar Syndrome

PURPOSE: The prognosis of a ductal adenocarcinoma of the body and tail of the pancreas is poor because it is usually diagnosed at an advanced stage and is rarely resectable. The aim of this study was to evaluate the clinical outcomes after a surgical resection of an adenocarcinoma of the distal pancreas. METHODS: A total of 311 patients with an adenocarcinoma of the distal pancreas were admitted between 1985 and 2001, and of these, 54 patients were surgically treated; 29 patients underwent a distal pancreatectomy (extended resection in 12 cases), 9 underwent a palliative bypass, and 16 underwent a open biopsy. The clinical outcome of the 29 patients who underwent a surgical resection for the adenocarcinoma of the distal pancreas was retrospectively analyzed. RESULTS: The resectability rate was 9.3% (29/311). In the resected cases, the cumulative 3-year survival rate was 14.9%, whereas it was 0% (p=0.013) in the non-resected cases. Moreover, a significant survival difference was found between the curatively resected cases (n=16, 28.1%) and the palliatively resected cases (n=13, 0%)(p=0.003). After the curative resection, 11 patients (68.8%) developed a recurrence. Three patients survived more than 3 years (46, 74, 56 months), of whom only one had no recurrent disease. The size of the tumor and the residual tumor were identified as independent significant prognostic factors by multivariate analysis. CONCLUSION: Only a curative resection can offer long-term survival as well as a survival benefit in patients with a ductal adenocarcinoma of the body and tail of the pancreas. Therefore, a surgical resection should be preferably performed and efforts for a curative resection should be made. However, adjuvant therapy, local and systemic, needs to be further developed because most patients develop a recurrence after the resection.
Adenocarcinoma* ; Biopsy ; Carcinoma, Pancreatic Ductal ; Humans ; Multivariate Analysis ; Neoplasm, Residual ; Pancreas* ; Pancreatectomy ; Prognosis ; Recurrence ; Retrospective Studies ; Survival Rate

BACKGROUND: This study was designed to analyze chronological changes of the clinicopathologic features in patients with gastric cancer who had undergone gastric operations at Seoul National University Hospital. METHODS: A retrospective review of the clinicopathologic features of a total of 2,217 gastric cancer patients was made for four different years: 407 patients in 1986, 507 patients in 1990, 646 patients in 1994, and 657 patients in 1997. RESULTS: The overall male-to-female ratio was 2.4:1, and there was no significant differences among the year groups. The mean ages were 53.2, 53.4, 54.5, and 55.9 years for each year group, respectively. The most common presenting symptoms were epigastic pain (44.5%), epigastric discomfort (19.5%), and indigestion (11.6%). The duration from onset of symptoms to operation has been shortened in recent years, and the proportions of operations delayed over 6 months were 43.0%, 40.2%, 38.0%, and 27.4% in each year group, respectively. The main cause of delayed diagnosis was neglect of symptoms by the patients (60.7%). The ratio of gastric cancer detected by routine health check-up without symptoms has increased significantly (p<0.01), being 1.2%, 3.4%, 5.1%, and 7.5% in each year group, respectively. Poorly differentiated carcinomas were the most common histopathologic type overall (57.6%), and there was no significant change in the distribution of histologic differentiation over time. The proportion of earlier stages has increased over time (p<0.01), and the ratios of early gastric cancers were 19.7%, 23.1%, 30.3%, and 35.3% in each year group, respectively. The postoperative survival rate of the 1994 year group was improved significantly when compared to that of the 1986 or the 1990 year group (p=0.01); however, there were no significant differences among these year groups with the same stage of the disease. CONCLUSIONS: These results suggest that the shortened duration of diagnostic delay and, partly, the early detection of the cancer by routine health check-ups have resulted in stage shifting (increased proportion of earlier stages) and improved survival.
Delayed Diagnosis ; Dyspepsia ; Humans ; Retrospective Studies ; Seoul ; Stomach Neoplasms* ; Survival Rate

PURPOSE: Honeycomb microcystic tumor is typical for SCT, but various SCTs including oligocystic tumor have been frequently reported. We classified SCT morphologically according to the gross and radiologic feature, and we analyzed the clinical features for the subtypes of SCT. We also suggest the guidelines for the differential diagnosis from mucinous cystic tumors (MCT) and the appropriate management. METHODS: This study enrolled 31 patients with SCT and 37 patients with MCT of the pancreas that were treated from Jan. 1992 to Oct. 2003 at Seoul National University Hospital. When the SCTs were classified according to cyst size and multiplicity, 13 were microcystic tumor and 18 were macrocystic tumor. We then compared microcystic SCT with mcrocystic SCT and we also compared macrocystic SCT with MCT. RESULTS: The mean age of patients with SCT was 50 (range: 31~77) and the male : female ratio was 1 : 3. The head : tail ratio was 14 : 18. There was no malignant SCT and no tumor recurrence. There was no difference between the microcystic and macrocystic type tumors according to the patients' age, gender and symptoms, and for the tumors' location and size. But preoperative misdiagnosis occurred 15.4% of the time for the microcystic type and 61.1% of the time for the macrocystic type (p=0.01). When we compared macrocystic SCT with MCT, there was no difference in the patients' age and symptoms, or for the tumors' size and the CA19-9 level in the serum. However, a difference was found for the tumors' location and the patients' gender ratio. There was a difference for the tumor location (p=0.043) and the patients' gender ratio (p=0.082). CONCLUSION: According to morphological features, we could classify SCT into two types (microcystic vs. macrocystic). Microcystic SCT can be accurately diagnosed at the preoperative stage, so conservative treatment and observation is possible. Macrocystic SCT is difficult to differentiate from the other pancreatic cystic tumors with malignant potential, so resection is recommended.
Classification* ; Cystadenoma, Mucinous ; Cystadenoma, Serous ; Diagnosis, Differential ; Diagnostic Errors ; Female ; Head ; Humans ; Male ; Mucins ; Pancreas* ; Pancreatic Cyst ; Pancreatic Neoplasms ; Recurrence ; Seoul

Purpose: High microsatellite instability (MSI) is related to good prognosis in gastric cancer. We aimed to identify the prognostic factors of patients with recurrent gastric cancer and investigate the role of MSI as a prognostic and predictive biomarker of survival after tumor recurrence. Materials and Methods: This retrospective cohort study enrolled patients treated for stage II/III gastric cancer who developed tumor recurrence and in whom the MSI status or mismatch repair (MMR) status of the tumor was known. MSI status and the expression of MMR proteins were evaluated using polymerase chain reaction and immunohistochemical analysis, respectively. Results: Of the 790 patients included, 64 (8.1%) had high MSI status or MMR deficiency. The tumor-node-metastasis stage, type of recurrence, Lauren classification, chemotherapy after recurrence, and interval to recurrence were independently associated with survival after tumor recurrence. The MSI/MMR status and receiving adjuvant chemotherapy were not associated with survival after recurrence. In a subgroup analysis of patients with high MSI or MMR-deficient gastric cancer, those who did not receive adjuvant chemotherapy had better treatment response to chemotherapy after recurrence than those who received adjuvant chemotherapy. Conclusion Patients with high MSI/MMR-deficient gastric cancer should be spared from adjuvant chemotherapy after surgery, but aggressive chemotherapy after recurrence should be considered. Higher tumor-node-metastasis stage, Lauren classification, interval to recurrence, and type of recurrence are associated with survival after tumor recurrence and should thus be considered when establishing a treatment plan and designing clinical trials targeting recurrent gastric cancer.

PURPOSE: In the Adjuvant Chemoradiotherapy in Stomach Tumors (ARTIST) trial, we investigated whether chemoradiotherapy after D2 gastrectomy reduces the rate of recurrence. Recently, the ratio of metastatic lymph nodes to examined lymph nodes (N ratio) has been proposed as an independent prognostic factor in gastric cancer (GC). The aim of this study was to investigate the relationship between the metastatic N ratio and prognosis of GC after curative D2 surgery. MATERIALS AND METHODS: We retrospectively reviewed the data of 458 ARTIST patients who underwent D2 gastrectomy followed by adjuvant chemotherapy (XP, n=228) or chemoradiotherapy (XPRT, n=230). The disease-free survival (DFS) rates of patients were used to evaluate the influence of N ratio on the treatment outcome. To achieve this, 4 different N ratio categories (0%, 1%~9%, 10%~25%, and >25%) were compared on the basis of their influence on the treatment outcome. RESULTS: On multivariate analysis, the N ratio remained an independent prognostic factor for DFS. The hazard ratios (HRs) for the N ratio categories of 0%, 1%~9%, 10%~25%, and >25% were 1, 1.061, 1.202, and 3.571, respectively. In patients having N ratio >25%, the 5-year DFS rates were 55% and 28% for the XPRT and XP arms, respectively (HR, 0.527; 95% confidence interval, 0.307~0.904; P=0.020). CONCLUSIONS: In patients with curatively resected GC, the N ratio was independently associated with DFS. Although this finding warrants further investigation in future prospective studies, the benefit of chemoradiotherapy for D2 resected GC appears to be more beneficial in cancers having N ratios >25%.
Arm ; Chemoradiotherapy ; Chemoradiotherapy, Adjuvant* ; Chemotherapy, Adjuvant ; Disease-Free Survival ; Gastrectomy ; Humans ; Lymph Nodes* ; Multivariate Analysis ; Prognosis ; Prospective Studies ; Recurrence ; Retrospective Studies ; Stomach Neoplasms ; Stomach* ; Treatment Outcome

PURPOSE: We aimed to discuss the roles of radiation and chemotherapy as adjuvant treatment in patients with staged IB GC who were enrolled in the adjuvant chemoradiotherapy in stomach tumors (ARTIST) trial. MATERIALS AND METHODS: Among the 458 patients who were enrolled in the ARTIST trial, 99 had stage IB disease. The patients were randomly assigned to receive either adjuvant chemoradiotherapy with capecitabine plus cisplatin (XP, n=50) or chemoradiotherapy (XPRT, n=49). Survival analyses were performed in accordance with the AJCC 2010 staging system. RESULTS: According to the AJCC 2010 system, stage migration from IB to II occurred in 71% of the patients; 98% of the T2 N0 cases were reclassified as T3 N0, and 42% of the T1 N1 cases were reclassified as T1 N2. When comparing survival outcomes between the XPRT and XP arms for stage IB cancer (AJCC 2002), no significant difference in 5-year disease-free survival (DFS) between the 2 arms was found. (median 5-year DFS, not reached, P=0.256). The patients classified as having stage IB cancer (AJCC 2002) and reclassified as having stage II cancer (AJCC 2010) exhibited worse prognoses than those who remained in stage IB, although the difference was not statistically significant (5-year DFS rate, 83% vs. 93%). When we compared 5-year DFS in 70 patients with stage II (AJCC 2010), the addition of radiotherapy to XP chemotherapy did not show better outcome than XP alone (P=0.137). CONCLUSIONS: The role of adjuvant chemoradiotherapy in the treatment of stage IB GC (AJCC 2002) warrants further investigation.
Arm ; Capecitabine ; Chemoradiotherapy ; Chemoradiotherapy, Adjuvant* ; Chemotherapy, Adjuvant* ; Cisplatin ; Disease-Free Survival ; Drug Therapy ; Humans ; Prognosis ; Radiotherapy* ; Stomach Neoplasms* ; Stomach*

PURPOSE: The purpose of this study was to compare prognostic differentiation performances of the 7th and the 8th edition of American Joint Committee on Cancer (AJCC) staging system for gastric cancer (GC) patients. MATERIALS AND METHODS: A total of 1,633 GC patients who underwent curative D2 resection followed by adjuvant chemotherapy alone (CA) or concurrent chemo-radiotherapy (CCRT) from 2004 to 2013 were included. Concordance index (c-index) was applied to compare the discriminatory ability. RESULTS: In the 8th edition, migration of stage was detected in 248 patients (15.2%). Among them, 121 patients were up-staged while 127 patients were down-staged. Overall, there was no statistically significant difference in the discriminatory ability between the 7th and 8th editions. The new edition of staging system, however, showed a trend of better prognostic performance not only in recurrence-free survival (c-index=0.734; 95% confidence interval [CI], 0.706 to 0.762 in the 7th edition vs. c-index=0.740; 95% CI, 0.712 to 0.768 in the 8th edition; p=0.14), but also in overall survival (c-index=0.717; 95% CI, 0.688 to 0.745 in the 7th edition vs. c-index=0.722; 95% CI, 0.694 to 0.751 in the 8th edition; p=0.19), especially in stage III. This finding was repeated in the subgroup analysis regardless of adjuvant CA or CCRT. CONCLUSION: Generally, the 8th edition of AJCC staging system had failed to show a superior discriminatory ability for curatively D2 resected GC patients than the 7th edition, although there was a trend of better prognostic performance of the new edition, regardless of adjuvant treatment method.
Chemotherapy, Adjuvant ; Humans ; Joints ; Methods ; Neoplasm Staging ; Prognosis ; Radiotherapy ; Recurrence ; Stomach Neoplasms