Objective To summarize the clinical characteristics and surgical treatment experience of 1 106 patients with cardiac myxoma. Methods Clinical data of 1 106 patients with cardiac myxoma who underwent surgical treatment in Beijing Anzhen Hospital from 2002 to 2018 were retrospectively analyzed. There were 749 (67.7%) females and 357 (32.3%) males. Results The highest incidence rate was at the age of 51-70 years. The location of the disease was: left atrium in 987 (89.2%) patients, right atrium in 99 (9.0%) patients, left ventricle in 10 (0.9%) patients, right ventricle in 8 (0.7%) patients. There were 1 013 patients of heart classification (NYHA) Ⅰ-Ⅱ and 93 patients of Ⅲ-Ⅳ. There were 301 patients with cerebral infarction and 57 patients with peripheral arterial embolism. Tumor size was closely related to hemodynamic symptoms (P≤0.05), but not to peripheral vascular embolism (P>0.05). Two (0.2%) patients died in hospital and 306 patients were followed up, with a follow-up rate of 27.7%. The median follow-up time was 7 years (range, 1-18 years). One patient died of all causes, and 23 patients recurred, with a recurrence rate of 2.1%. Among 23 recurrent patients, 15 (65.2%) patients were atypical myxoma and 8 (34.8%) patients were typical myxoma. There was no statistical difference in aortic clamping time, ICU stay time, ventilator-assisted breathing time, postoperative hospital stay time, postoperative mortality, or cardiac ejection fraction at discharge between the reoperation in 23 recurrent patients and the first operation in 1 083 non-recurrentpatients. Conclusion Cardiac myxoma is more common in middle-aged and elderly women, and it often occurs in the left atrium. The size of cardiac myxoma can affect the hemodynamic changes. Surgical treatment is effective. Atypical myxoma is more common in recurrent patients, and the effect is still satisfactory through surgical treatment.
目的 探讨乳腺癌改良根治术后影响局部复发与远处转移的相关因素。方法 对陕西省汉中市铁路中心医院略阳医院2000年3月至2007年3月期间行乳腺癌改良根治术且资料完整的637例原发性乳腺癌患者的临床资料进行回顾性分析。结果 66例（10.36%）患者术后发生局部复发和远处转移，其中局部复发50例（7.85%），远处转移16例（2.51%）；术后3～4年内发生复发与远处转移者47例（71.21%）。术后复发和远处转移与患者年龄、肿瘤大小、腋窝淋巴结转移情况、TNM分期、激素受体（ER/PR）表达情况及术后是否接受正规的辅助治疗有关，与患者有无家族史无关。结论 肿瘤大小、腋窝淋巴结转移情况、TNM分期、ER/PR表达情况及术后是否接受正规的辅助治疗是影响乳腺癌改良根治术后复发与远处转移的危险因素，重视乳腺癌术后随访，规范乳腺癌的手术方式，强化乳腺癌的综合治疗是降低乳腺癌改良根治术后复发与远处转移率的主要措施。
Objective To explore the diagnosis and treatment of airway involvement in relapsing polychondritis. Methods The clinical data of two patients with relapsing polychondritis with airway involvement were reported and the relative literatures were reviewed. Results The two patients were both old males, with clinical manifestations of cough, dyspnea, and fever. They were misdiagnosed in a other hospital. The pulmonary function tests showed obstructive ventilatory impairemnt. On inspiratory CT, tracheal / tracheobronchial wall thickening and airway stenosis, with or without tracheal cartilage calcification were common findings. The tracheal cartilages thickeness and membranous wall were normal. On expiratory CT scans, functional abnormalities were identified such as tracheobronchomalacia. The patients were relieved by medication of corticosteroids or with immunodepressant. Conclusions The relapsing polychondritis with airway involvement is easy to be misdiagnosed. Chest CT examination is a valuable method for diagnosis of relapsing polychondritis. Corticosteroids and immunodepressant can improve the outcome.
Objective To discussion the diagnostic significance of CT three dimension reconstruction in local recurrence after surgery for gastric cancer. Methods Thirty-nine patients with gastric cancer recurrence after radical surgery were performed multislice CT scan between December 2004 and December 2008 in The Third Affiliated Hospital of Harbin Medical University, and the images were reconstructed by three dimension reconstruction in workstation. The axial CT images and three dimension images of gastric cancer recurrence patients were diagnosed and compared. Results The detection rates of axial images and three dimensional CT images were 82.1% (23/28) and 100% (28/28) for pathological morphology, 62.5% (10/16) and 93.8%(15/16) for extension of tumors, 66.7% (10/15) and 93.3% (14/15) for lymph node metastasis, 87.5% (7/8) and 87.5% (7/8) for distant metastasis, respectively. Conclusions CT three dimension reconstruction can carry out more direct and solid results, such as measuring the vertical thickness of the thickened gastric wall, observing the infiltration situation with proximal organ, and metastasis of the lymph node. The method of three dimension reconstruction used for the diagnosis of local recurrence after surgery for gastric cancer is better than the axial image, and it can supply data which would be useful for the tumor advancing treatment.
ObjectiveTo investigate the impact of elevated fasting blood glucose (FBG) level after open radical hepatectomy on the early recurrence of hepatocellular carcinoma (HCC).MethodsThe clinical data of 112 patients with HCC who underwent the open radical hepatecomy from January 2013 to December 2014 in the Affiliated Hospital of Qingdao University were retrospectively analyzed. After the radical resection of HCC, 86 patients with level of FBG 3.9–6.1 mmol/L and 26 patients with level of FBG≥6.1 mmol/L were design into a normal FBG group and an elevated FBG group, respectively. The recurrence rates of HCC were compared between the two groups at 1- and 2-year after the opreation.ResultsThere were no significant differences between the 2 groups in the gender, age, history of alcohol drinking, hepatitis B history, preoperative ALT, AST, AFP and Child-Pugh classification, scope of hepatectomy, intraoperative hemorrhage, hepatic blood flow occlusion, diameter of maximal tumor, histopathological differentiation, tumor number, cirrhosis, satellite lesion, postoperative adjuvant TACE treatment or not (P>0.05). The postoperative 1- and 2-year recurrence rates of HCC were 19.8% (17/86) and 33.7% (29/86) in the normal FBG group and 42.3% (11/26) and 61.5% (16/26) in the elevated FBG group, respectively, showing significant differences between the 2 groups (P<0.05). The results of multivariate analysis showed that the level of FBG≥6.1 mmol/L, low histopathological differentiation, and no postoperative TACE treatment were the independent risk factors affecting tumor-free survival rate after the open radical resection of HCC (P<0.05). ConclusionsElevated FBG level after open radical resection has a stimulative effect on early recurrence of HCC. As a result, monitoring and controlling of FBG level after operation is helpful in decreasing early recurrence rate of patients with HCC.
Pathological images of gastric cancer serve as the gold standard for diagnosing this malignancy. However, the recurrence prediction task often encounters challenges such as insignificant morphological features of the lesions, insufficient fusion of multi-resolution features, and inability to leverage contextual information effectively. To address these issues, a three-stage recurrence prediction method based on pathological images of gastric cancer is proposed. In the first stage, the self-supervised learning framework SimCLR was adopted to train low-resolution patch images, aiming to diminish the interdependence among diverse tissue images and yield decoupled enhanced features. In the second stage, the obtained low-resolution enhanced features were fused with the corresponding high-resolution unenhanced features to achieve feature complementation across multiple resolutions. In the third stage, to address the position encoding difficulty caused by the large difference in the number of patch images, we performed position encoding based on multi-scale local neighborhoods and employed self-attention mechanism to obtain features with contextual information. The resulting contextual features were further combined with the local features extracted by the convolutional neural network. The evaluation results on clinically collected data showed that, compared with the best performance of traditional methods, the proposed network provided the best accuracy and area under curve (AUC), which were improved by 7.63% and 4.51%, respectively. These results have effectively validated the usefulness of this method in predicting gastric cancer recurrence.
【摘要】 目的 总结原发性乳腺淋巴瘤（primary breast lymphoma，PBL）的临床病理学、免疫组织化学特征、综合治疗及复发情况。 方法 对2010年11月入院手术切除的PBL术后同侧乳头复发的1例患者的临床资料进行回顾分析，病理常规切片及免疫组织化学观察。 结果 光学显微镜检查低倍镜下肿瘤细胞弥漫性浸润破坏乳头组织，导致乳头结构紊乱，肿块乳管结构紊乱；高倍镜下显示瘤细胞成分多样，以中等大小细胞和大细胞为主，肿瘤细胞弥漫侵犯小血管。免疫组织化学结果显示Ki-67（gt;90%），CD20（+），bcl-6（+），MUM1（+），CD43（灶+），CD3（-），CD10（-）。符合恶性非霍奇金淋巴瘤。 结论 PBL是一种少见的结外淋巴瘤，临床表现缺乏特异性，术前很难与乳腺其他良、恶性病变区分，其诊断主要依靠术后病理。目前单纯肿块切除术+放射治疗联合全身化学疗法是治疗PBL临床共识，肿瘤复发可能与Ki-67高度表达存在相关性。【Abstract】 Objective To investigate the clinical pathology, immunohistochemical features, comprehensive treatment, recurrence and prognosis of primary breast lymphoma (PBL). Methods We retrospectively analyzed the clinical data including general information and pathological and immnohistochemical examinations of one patient with recurrent PBL in nipple of the same side after surgery who was admitted into our hospital in November 2010. Results Under low-power optical microscope lens, we found that the tumor cells diffused and infiltrated the nipple tissue which looked quite disorganized. Under high-power lens, we observed various tumor cells, especially the medium-and large-sized tumor cells which infiltrated small vessels. The results of immunohistochemical tests were as follows: Ki-67 (gt;90%), CD20 (+), bcl-6 (+), MUM1 (+), CD43 (nidus+), CD3 (-), and CD10 (-). All these indexes indicated malignant non-Hodgkin’s lymphoma. Conclusions PBL is a kind of extremely rare extra-nodal lymphoma with low-specificity clinical manifestations, and it is hard to distinguish from other mammary abnormalities. Its diagnosis mainly depends on pathological examinations. At present, lumpectomy followed by chemotherapy and radiotherapy is the best treatment method. Its recurrence may be related to the high expression of Ki-67.