Computed tomography-guided percutaneous biopsy of pancreatic masses using pneumodissection

Radiologia Brasileira

Chiang Jeng Tyng¹  Almir Galvão Vieira Bitencourt¹  Maria Fernanda Arruda Almeida¹  Paula Nicole Vieira Barbosa¹  Eduardo Bruno Lobato Martins¹  João Paulo Kawaoka Matushita Junior¹  Rubens Chojniak¹  Felipe José Fernandez Coimbra¹ 

关键词: Pancreatic neoplasms;    Needle biopsy;    Computed tomography;    Neoplasias pancreáticas;    Biópsia por agulha;    Tomografia computadorizada;   

DOI  :  10.1590/S0100-39842013000300006

来源: SciELO

【 摘 要 】

Objective To describe the technique of computed tomography-guided percutaneous biopsy of pancreatic tumors with pneumodissection. Materials and Methods In the period from June 2011 to May 2012, seven computed tomography-guided percutaneous biopsies of pancreatic tumors utilizing pneumodissection were performed in the authors' institution. All the procedures were performed with an automatic biopsy gun and coaxial system with Tru-core needles. The biopsy specimens were histologically assessed. Results In all the cases the pancreatic mass could not be directly approached by computed tomography without passing through major organs and structures. The injection of air allowed the displacement of adjacent structures and creation of a safe coaxial needle pathway toward the lesion. Biopsy was successfully performed in all the cases, yielding appropriate specimens for pathological analysis. Conclusion Pneumodissection is a safe, inexpensive and technically easy approach to perform percutaneous biopsy in selected cases where direct access to the pancreatic tumor is not feasible.

【 授权许可】

CC BY   
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