Clinical Application of CT/ultrasound Guided Percutaneous Tissue Biopsy in the Diagnosis and Treatment of Extracranial Schwannoma
Objective To explore the clinical application of CT/ultrasound guided percutaneous tissue biopsy in the diagnosis and treatment of extracranial schwannoma.Methods A retrospective analysis of 177 patients with extracranial schwannoma diagnosed by routine pathology after surgery from January 2012 to December 2022 in the First Affiliated Hospital of Zhengzhou University and preoperative ultrasound or CT-guided percutaneous biopsy was performed.Among them,79 cases were guided by ultrasound and 98 cases were guided by CT.The clinical data such as tumor size,tumor location,puncture time,puncture process,pathological coincidence rate,and complications rate were summarized.Results Only one needle was punctured in 2 patients with superficial lesions due to distal pain and numbness,and the remaining 175 cases were successfully punctured.The pathological coincidence rate of ultrasound was 94.94％(75/79)and that of CT was 92.86％(91/98).The incidence of complications was7.59％(6/79)in ultrasound and 9.18％(9/98)in CT.In abdominal lesions,there were 15 cases in the ultrasound group and 29 cases in the CT group,and the difference in puncture time was statistically significant(P＜0.05).There was no significant difference in pathological coincidence rate and complication rate(P＞0.05).Conclusion Ultrasound or CT-guided percutaneous puncture biopsy is safe and effective in the diagnosis of schwannoma with low complication rate.CT-guided is the first choice for chest lesions,and ultrasound-guided is the first choice for other lesions.When the lesion is large,superb blood flow imaging,contrast-enhanced ultrasound and contrast-enhanced CT can be selected before puncture to select the appropriate target lesion to reduce the tissue dissatisfaction rate.
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