Background Spindle cell hemangioma (SCH) was an extremely rare benign tumor which typically arised in the subcutis of the distal extremities of young people. In this study, we reported a case of multiple spindle cell hemangioma in both lungs. Case presentation A 19-year-old HIV-negative female was found to have multiple lung nodules by the chest X-ray during the physical examination. Her chest CT scan revealed multiple round-like pulmonary nodules in both lungs. Based on the morphological features and immunohistochemical examination for vascular markers CD31, CD34 and D2–40, the mass was diagnosed as SCH after surgery. Conclusion SCH was an extremely rare tumor especially in both lungs. It should be considered in differential diagnosis of multiple lung nodules. Pathological features, the expression of CD31, CD34 and D2–40 could help to diagnosis of SCH.

Extraskeletal osteosarcoma (ESOS) is a rare soft-tissue sarcoma that is treated with surgical resection, chemotherapy and radiotherapy; however, as it is now considered to be radiation resistance, it is associated with conflicting management principles and poor outcomes. A multimodality approach is currently used to treat ESOS, which entails the incorporation of multidrug chemotherapy and/or radiotherapy coupled with surgery to obtain the best outcome; however, there are many factors that influence the treatment effects and clinical outcomes of ESOS. In the present study, a case of an 81-year-old man who suffered from primary ESOS in the subcutaneous tissue of the right-hand side of the neck was reported. The patient was treated several times with partial resection and once with radiotherapy, and was still living following 3 years of follow-up. Thus, the present case report demonstrated that surgical resection and postoperative radiotherapy regimens may be favourable in the short term with a disease-free survival of ~15 months; however, patients are prone to relapse.

Background Open heart surgery during pregnancy is relatively rare at home and abroad, and there is a higher risk and probability of maternal and infant death. How to carry out heart valve replacement under cardiopulmonary bypass (CPB) under the premise of ensuring the safety of mother and child is the focus of attention at home and abroad. Case introduction We reported four cases of cardiac surgeries under CPB during pregnancy performed in our hospital from March 2020 to March 2021. Two of the patients continued their pregnancy after cardiac surgery under CPB. Three patients had infective endocarditis and the other one had an ascending aortic aneurysm. Three patients underwent heart valve placement with the mechanical mitral valve when the other one underwent Bentall surgery. The operations of four cases were all successful, and further follow-up evaluation of the pregnant women and fetuses showed no abnormalities. The patients' detailed information is shown in the following table. Conclusion Heart disease during pregnancy should be treated actively and proactively when the patient has obvious symptoms. Heart valve replacement under CPB will be the first choice, and this may become the primary surgical treatment for symptomatic heart disease during pregnancy.

This book falls in the broad subject area of psycholinguistics and second-language acquisition. More specifically, this book is written for researchers stepping into the field of morphological processing so that they are not overwhelmed by the large number of individual studies and do not lose sight of the whole picture. With a comprehensive review of the relevant factors that first- and second-language morphological processing researchers need to take into consideration, including material- and procedure-related factors, participant individual differences, and participant group-level differences, this book is a useful theoretical reference work for morphological processing researchers. By considering the various potential confounding factors reviewed in this book, researchers are in a better position to more scientifically and meticulously reduce or eliminate the effects of potential covariates so that they can focus on their independent variables of interest. It may also help researchers in evaluating previous studies and their findings and whether or not these studies may have failed to consider possible confounding factors.

Desmoid tumor (DT) is a rare, local recurrence, invasive growth benign disease that rarely occurs in the chest wall. Chest wall tumor resection is mainly solution for chest DTs and one of the most challenging operations for thoracic surgeons. This paper introduces a case of recurrent chest DT, which used 3D model reconstruction(3DMR)technology to make preoperative planning and guide surgical resection of tumor. Our result proved that individual operations designed through 3DRM technology can reduce the possible injury caused by surgery and provide a better management of surgery. 3DRM technology has great application potential in the complex thoracic DTs surgery.