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Myopericytoma Involving the Parotid Gland as Depicted on Multidetector CT
Zhi-Gang Chu,Jian-Qun Yu,Zhi-Gang Yang,Zhi-Yu Zhu,Hong-Mei Yuan 대한영상의학회 2009 Korean Journal of Radiology Vol.10 No.4
Myopericytoma is a newly proposed subgroup of perivascular tumors in the World Health Organization classification of soft tissue tumors. In this study, we report a case of a benign myopericytoma with detailed multidetector CT (MDCT) findings in the parotid gland, a location that has not been described for this type of tumor previously. The clinical presentation, imaging features, histopathological and immunohistochemical findings, and the differential diagnosis with other tumors in the parotid gland are described and reviewed.
Tian-wu Chen,Zhi-gang Yang,Zhi-hui Dong,Zhi-gang Chu,Si-shi Tang,Wen Deng 대한의학회 2011 Journal of Korean medical science Vol.26 No.3
The aim of this study was to investigate features of abdominal earthquake-related crush traumas in comparison with non-earthquake injury. A cross sectional survey was conducted with 51 survivors with abdominal crush injury in the 2008 Sichuan earthquake, and 41with abdominal non-earthquake injury, undergoing non-enhanced computed tomography (CT) scans, serving as earthquake trauma and control group, respectively. Data were analyzed between groups focusing on CT appearance. We found that injury of abdominalwall soft tissue and fractures of lumbar vertebrae were more common in earthquake trauma group than in control group (28 vs 13 victims, and 24 vs 9, respectively; all P <0.05); and fractures were predominantly in transverse process of 1-2 vertebrae among L1-3 vertebrae. Retroperitoneal injury in the kidney occurred more frequently in earthquake trauma group than in control group (29 vs 14 victims, P < 0.05). Abdominal injury in combination with thoracic and pelvic injury occurred more frequently in earthquake trauma group than in control group (43 vs 29 victims, P < 0.05). In conclusion, abdominal earthquake-related crush injury might be characteristic of high incidence in injury of abdominal-wall soft tissue, fractures of lumbar vertebrae in transverse process of 1-2 vertebrae among L1-3 vertebrae, retroperitoneal injury in the kidney, and in combination with injury in the thorax and pelvis.
Ghost Cell Odontogenic Carcinoma Arising from Calcifying Cystic Odontogenic Tumor: A Case Report
Zhi-Yu Zhu,Yu Chen,Zhi-Gang Chu,Wei-Ping Zhang,Di Lv,Ning Geng,Ming-Zhong Yang 대한병리학회 2012 Journal of Pathology and Translational Medicine Vol.46 No.5
Ghost cell odontogenic carcinoma (GCOC) is an exceptionally rare and malignant odontogenic tumor with aggressive growth characteristics. We describe a case of GCOC which was considerably derived from a previously resected calcifying cystic odontogenic tumor (CCOT). Cellular atypia, mitotic activity, Ki-67 labeling index and matrix metalloprotease-9 positive expression rate were all increased in the currently resected specimen compared to the initial one. This is a rare case of malignant transformation of CCOT to GCOC with respect to its histopathological and immunohistochemical findings.
Zhi-hao Li,Shang Chu,Ping Wang,Sihai Gao,Shu-gang Li,Xiongwei Yu 한국식품과학회 2020 Food Science and Biotechnology Vol.29 No.9
This study examined the effects of differentdoses of irradiation treatments on protein structure anddigestion characteristic of seed-watermelon seed kernelprotein. The results showed that, the molecular structure ofseed-watermelon kernel protein was unfolded after theirradiation treatment, the content of b-sheet structure in thesecondary structure was decreased, while the content ofrandom coil structure increased. The average particle sizeof the protein increased, and the hydrophobic group buriedin the b-sheet structure was exposed hence the surfacehydrophobicity increased. Besides, the surface morphologyof seed-watermelon protein changed from smooth and flatto coarse and concave, the specific surface area in contactwith the aqueous medium increased and its solubilityincreased, the distribution of peptides in the digestabecame wider, and the small molecular weight peptidesgradually increased.