Objective To investigate the clinical and histopathologic features of patients with primary gastrointestinal malignant lymphoma ( PGIML). Methods The clinical and histopathologic data of 22 patients with PGIML were reviewed and analyzed retrospectively. All cases were confirmed with histological specimen obtained from endoscopic biopsies or surgery. Results Abdominal pain was the most common presenting symptom, seen in 15 of 22 patients (68.2% ). The incidence of PGIML was highest in stomach, seen in 12 of 22 patients (54. 5% ). Modularity of the mucosal surface was the most common endoscopic finding, seen in 15 of 21 patients (71. 4% ). The positive rate of endoscopic biopsy for the diagnosis of PGIML was 52. 6% (10/19 biopsy cases). All cases were non-Hodgkins lymphomas ( NHL). Twenty cases were muco-sa associated lymphoid tissue (MALT) lymphoma, and 13 of 20 cases were extra-nodal marginal zone B-cell lymphoma of MALT. Conclusions Abdominal pain is the most common symptom and the stomach was the most common location in PGIML. Extra nodal marginal zone B-cell lymphoma of MALT is the main histopathologic feature. The prognosis of PGIML is related to the surgical procedure and the post operative chemotherapy.

[Objective]Depression is a common mental illness with a profound impact on physical health.Depression has been associated with a higher risk of bacterial infection;however,whether this relationship is causal and how depression affects infection remains unclear.Therefore,we aimed to investigate the effects of depressive phenotype in infected mice by constructing a chronic unpredictable mild stress(CUMS)model.[Methods]Mice were induced with CUMS for 4 weeks.The depressive phenotype was evaluated using behavioral tests.Subsequently,the mice were intraperitoneally injected with Klebsiella pneumoniae to establish bacterial infection.Serum and abdominal tissues were collected 48 h after infection.Hematoxylin-eosin(HE)staining was used to observe the pathological changes in the tissues,and enzyme-linked immunosorbent assay(ELISA)was used to measure the levels of inflammatory factors.In addition,the fecal samples collected before infection were analyzed for 16S rDNA gene of gut microbiota,and the expression levels of NF-κB/NLRP3 signaling pathway in colon tissues of uninfected mice were detected.[Results]Behavioral tests showed that compared with the control mice,CUMS mice had significantly lower body weight(P<0.0001,t=5.426),lower sucrose preference rate(P<0.001,t=4.937),increased swimming stationary time(P<0.001,t=16.37),and decreased time spent in the central area of the open field(P<0.01,t=3.575).Survival analysis showed that compared with the control mice,the survival rate of CUMS mice significantly decreased after infection(P<0.05).Additionally,histochemical staining showed that tissue damage in the liver(P<0.05,t=4.025),kidney(P<0.05,t=2.828),and mesentery(P<0.01,t=5.367)significantly increased.Furthermore,ELISA results showed that the levels of the inflammatory cytokines IL-6(P<0.01,t=3.365),IL-1β(P<0.01,t=4.061),TNF-α(P<0.01,t=4.460)and LPS(P<0.0001,t=27.24)were elevated.The difference was statistically significant.According to 16S rDNA sequencing,CUMS-induced changes in the intestinal bacterial community structure of mice,making them significantly different from the control mice.Compared with the control mice,the expression levels of NF-κB(P<0.01,t=6.825)and NLRP3(P<0.001,t=9.561)were upregulated in CUMS mice.[Conclusion]The CUMS model was successfully constructed and CUMS mice developed more severe bacterial infection.Gut microbiota was dysregulated and the expression of NF-κB/NLRP3 signaling pathway was up-regulated in CUMS mice,which was related to the susceptibility to bacterial infection.

Objective:To investigate the factors that influence the occurrence of complications following deep inferior epigastric perforator (DIEP) flap breast reconstruction, and to determine whether these complications have an impact on the patient's quality of life.Methods:The clinical and follow up data from patients who underwent DIEP flap breast reconstruction at the Department of Breast, Affiliated Cancer Hospital of Zhengzhou University from Dec 2019 to Mar 2023 were retrospectively analyzed.Results:A total of 85 patients underwent DIEP flap breast reconstruction, including 71 stage Ⅰ reconstructions and 14 stage Ⅱ reconstructions. Postoperative complications occurred in 22 cases 25.9%, including flap complications in 11 cases (12.9%) and abdominal donor site complications in 11 cases (12.9%). Univariate and multivariate analyses showed that the overall incidence of complications was associated with high BMI and early surgery ( P<0.05). Flap complications were associated with high BMI, surgery performed at initial phase, and the use of internal mammary vascular branches as recipient vessels ( P<0.05). Abdominal complications were associated with previous abdominal surgery scars ( P<0.05). BREAST-Q scores showed no significant differences between the surgical complication group and the no complication group in terms of breast satisfaction, mental health, physical health-chest, physical health-abdomen, satisfaction with abdomen, sexual health, etc. ( P>0.05). Conclusions:DIEP flap breast reconstruction has a significant learning curve. The patient's own clinical characteristics (such as BMI and abdominal incision scars) and intraoperative choices (such as the selection of recipient vessels) may influence the occurrence of postoperative complications. However, the presence of postoperative complications does not appear to have an impact on patient-reported outcomes.

Objective:To investigate the clinical application effect of internal mammary artery perforator (IMAP) as recipient vessels in breast reconstruction with deep inferior epigastric perforator flap (DIEPF) immediately after breast cancer surgery.Methods:From May 2020 to May 2023, a total of 18 patients with DIEPF breast reconstruction using IMAP as recipient vessels were selected from the Department of Breast Disease of Henan Cancer Hospital. The patients were 31 to 50 years old, with an average of 41.5 years old. The stages of breast cancer were cT is/1-2N 0-2M 0, and all of the patients received immediate breast reconstruction after the breast cancer surgery. The size of flaps were from 9.0 cm × 26.0 cm to 15.0 cm × 38.0 cm. Preoperative chest and abdominal wall CTA were performed to identify the location of intercostal space and the calibre of IMAP. Intraoperatively, the number of IMAP, the diameters of corresponding arteries and accompanying veins in the recipient site were recorded. All patients were included in the scheduled postoperative follow-up through outpatient clinic or via WeChat. The quality of flap survival was evaluated, the condition of breast appearance and recovery of the abdominal donor site were evaluated according to the breast cancer patient reported outcome measures (BREAST-Q). Results:All the 18 patients had the IMAP visualised in surgery, with 13 had the IMAP located at the second intercostal space and 3 at the third intercostal space. The other 2 patients were found with the IMAP located in both the second and third intercostal spaces, in which 1 was found that both of IMAP were suitable for anastomosis. It was also found that there was 1 accompanying vein in 15 breasts and 2 accompanying veins in 2 breasts. One breast had found without an accompanying vein. The diameters of arteries were 1.1 mm±0.1 mm and that of the veins were 1.8 mm±0.3 mm. The average follow-up period was 28 months, ranged from 6 to 40 months. Of the 18 flaps, 17 were completely survived. Venous compromise occurred in 1 flap due to extensive venous thrombosis, and it was replaced with a breast implant. No patient experienced concave deformities in the reconstructed breasts. Seventeen patients with an average BREAST-Q score of 94.4. One patient with a BREAST-Q score of 79.0.Conclusion:IMAP can serve as a reliable recipient vessel for immediate breast reconstruction with DIEPF after breast cancer surgery. With strict selection criteria, this technique could be put on further trials with larger sample size and multi-centres.