Abstract:
AIM:To investigate the utility of K-ras mutation analysis of ultrasound guided fine-needle aspirate biopsy of pancreatic masses. METHODS:Sixty-six ultrasound guided fine-needle biopsies were evaluated by cytology, histology and k-ras mutation. The mutation at codon 12 of the k-ras oncogene was detected by artificial restriction fragment length polymorphisms using Bst NI approach. RESULTS:The presence of malignant cells was reported in 40 of 54 pancreatic carcinomas and K-ras mutations were detected in 45 of the 54 FNABs of pancreatic carcinomas. The sensitivity of cytology and k-ras mutation were 74 % and 83 %, respectively. The specialty of cytology and k-ras mutation were both 100 %. The sensitivity and specialty of k-ras mutation combined with cytology were 83 % and 100 %, respectively. CONCLUSION:High diagnostic accuracy with acceptable discomfort of FNAB make it useful in diagnosis of pancreatic carcinoma. Ultrasound guided fine-needle biopsy is a safe and feasible method for diagnosing pancreatic cancer. Pancreatic carcinoma has the highest K-ras mutation rate among all solid tumors. The mutation rate of k-ras is about 80-100 %. The usage of mutation of codon 12 of k-ras oncogene combined with cytology is a good alternative for evaluation of pancreatic masses.
journal_name
World J Gastroenteroljournal_title
World journal of gastroenterologyauthors
Zheng M,Liu LX,Zhu AL,Qi SY,Jiang HC,Xiao ZYdoi
10.3748/wjg.v9.i1.188keywords:
subject
Has Abstractpub_date
2003-01-01 00:00:00pages
188-91issue
1eissn
1007-9327issn
2219-2840journal_volume
9pub_type
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