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238 results on '"Chu, Zhi-Gang"'

7. CT Characteristics and Clinical Findings of Bronchopneumonia Caused by Pepper Aspiration.

Author

Zhang, Yi, Liang, Zhang-Rui, Xiao, Yang, Li, Yi-Shi, Fu, Bin-Jie, and Chu, Zhi-Gang

Subjects
COMPUTED tomography, BRONCHOPNEUMONIA, FOREIGN bodies, PEPPERS, BRONCHI
Abstract

Purpose: To explore the computed tomography (CT) features of bronchopneumonia caused by pepper aspiration to improve the diagnosis. Materials and Methods: 28 adult patients diagnosed with obstructive pneumonia caused by pepper aspiration from January 2016 to September 2022 were enrolled. The CT characteristics of bronchial changes and pulmonary lesions caused by pepper were analyzed and summarized. Results: Among 28 patients, the most common symptom was cough (26, 92.9%), followed by expectoration (23, 82.1%). Bronchoscopy revealed that peppers were mainly found in the bronchus of the right lower lobe (n = 18, 64.3%), followed by the bronchus of the left lower lobe (n = 5, 17.9%). In combination with bronchoscopy results, the pepper in the bronchus manifested as circular or V/U-shaped high-density, localized soft tissue, and flocculent opacification in 8 (28.6%), 16 (57.1%), and 3 (10.7%) cases on CT images, respectively. The bronchial wall around the pepper was thickened with localized occlusion (n = 19, 67.9%) and stenosis (n = 9, 32.1%). Regarding adjacent bronchi without peppers, extensive wall thickening with stenosis and/or occlusion was found in 23 (82.1%) cases. Distal pulmonary lesions frequently involved two or three segments (21, 75.0%) and mainly presented as patchy consolidation or atelectasis (24, 85.7%). Conclusion: In combination to a history of eating peppers and clinical symptoms, bronchopneumonia caused by pepper should be highly suspected if U/V-shaped and annular high-density or localized soft tissue density is detected in the bronchi of the lower lobes, accompanied by extensive bronchial wall thickening, stenosis, or occlusion, and consolidation or atelectasis in multiple distal lung segments. [ABSTRACT FROM AUTHOR]

Published
2024
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29. HER2 and p53 Expression in Marjolin’s Ulcer

Author

Jin Dong May, xia chen, Xiao Yan, Ma Wen, and Chu Zhi Gang

Subjects
medicine.medical_specialty, genetic structures, business.industry, medicine, Marjolin's ulcer, medicine.disease, business, P53 expression, Dermatology, psychological phenomena and processes, digestive system diseases
Abstract

Background：Marjolin's ulcer is a malignant tumor that is different from other skin ulcers, and its pathogenesis is not yet clear. The diagnosis and prognosis of Marjolin's ulcer lack valuable marks on immunohistochemistry (IHC).Methods: In this study, we detected the expression of HER2 and p53 in Majorlin’s ulcer with immunohistochemistry, and retrospectively analyze the clinicopathological characteristics of Marjolin's ulcer samples.Results: Our results showed that no HER2 but p53 was detected in Majorlin’s Ulcer samples. Meanwhile, by statistic analysis we found that the positive expression rate of p53 in Majorlin’s Ulcer samples was associated with sex, course of disease, ulcer size, pathological type of ulcer canceration, and degree of tumor differentiation. Furthermore, we showed that the positive rate of p53 was proportional to the malignancy degree of Marjolin’s ulcer. Conclusions:Our results of this study will lay a foundation for diagnosis of Marjolin's ulcer and even prevention of Marjolin's ulcer progression

Published
2021

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