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Chinese Journal of Nephrology ; (12): 394-399, 2021.
Article in Chinese | WPRIM | ID: wpr-885508


Objective:To report a rare case of renal injury secondary to Strongyloides stercoralis infection, and investigate common pathological subtypes, pathogenesis and differential diagnosis of Strongyloides stercoralis infection-associated renal injury combined with literature. Methods:The pathological features of renal biopsy were analyzed by immunofloruscence, light microscope and electronic microscope. The pathological changes of digestive tract and pathogen morphology were observed through endoscope and digestive tract biopsy. The correlation between clinical-pathological features and pathological changes of kidney and digestive tract was analized.Results:The 26-year-old male patient presented with nephrotic syndrome. The pathological changes of renal biopsy were consistent with minimal change disease with interstitial focal eosinophil infiltration. Laboratory examination showed that the patient had unexplained eosinophilia and increased IgE level. Hence the patient was treated with glucocorticoid. After 2 months of therapy, proteinuria decreased and turned to negative while the patient developed progressive headache, gastrointestinal bleeding and progressive decrease of hemoglobin. Emergency gastroscopy showed extensive congestion and erosion of the stomach and duodenum. Gastric mucosal biopsy showed a large number of slender "s" shape larvae in the mucosa. The patient also had bilateral lung infection, positive Escherichia coli in cerebrospinal fluid and purplish skin rash around the umbilicus. A serious infection of Strongyloides stercoralis was diagnosed. After antibiotics and anthelmintic treatment, gastrointestinal symptoms and headache disappeared, and no parasite was found in endoscopy. No recurrence of nephrotic syndrome was found during 2 years of follow-up. Conclusions:Strongyloides stercoralis infection might first present with nephrotic syndrome with handful hints of digestive tract combined with eosinophilia and increased IgE levels. Therefore, in epidemic areas or patients with suspicious exposure history, it is necessary to exclude Strongyloides stercoralis infection before immunosuppressive therapy to avoid fatal complications.

Article in Chinese | WPRIM | ID: wpr-711546


Objective To investigate the safety and efficacy of endoscopic submucosal dissection ( ESD) for early stage colorectal cancer and precancerous lesions. Methods Clinical data of 108 patients who received ESD for early stage colorectal cancer and precancerous lesions from December 2016 to June 2017 in Renmin Hospital of Wuhan University were analyzed. The lesion characteristics, postoperative pathological features, intraoperative and postoperative complications and postoperative follow-up outcomes were analyzed. Results The 108 patients all underwent ESD successfully with median operation time of 45 min. The rate of intraoperative perforation and postoperative delayed bleeding was 2. 8% ( 3/108) and 2. 8% (3/108), respectively. No postoperative delayed perforation occurred. Postoperative pathology showed that there were 41 cases ( 38. 0%) of tubular adenoma, 4 ( 3. 7%) villous adenoma, 39 ( 36. 1%) villous tubular adenoma [ including 41 ( 38. 0%) low-grade intraepithelial neoplasia and 16 ( 14. 8%) high-grade intraepithelial neoplasia] , 19 ( 17. 6%) adenocarcinoma, and 5 ( 4. 6%) other types. Among the 19 cases of adenocarcinoma, there were 11 cases of well-differentiated, 5 median-differentiated and 3 low-differentiated. The complete resection rate was 100. 0% and the en bloc resection rate was 92. 3% ( 100/108) . The mean follow-up time was 8. 1 months, and no recurrence was found during this period. Conclusion ESD is safe and effective in the treatment of early stage colorectal lesions. It is important to improve preoperative assessment, strengthen surgical skills, analyze postoperative pathological features and regularly follow up to guarantee the treatment quality of ESD.