Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver · 2013
Ultrasound-guided percutaneous biopsy for diagnosis of gastrointestinal lesions.
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de Sio Ilario, Funaro Annalisa, Vitale Luigi Maria, Niosi Marco, Francica Giampiero, Federico Alessandro, Sgambato Dolores, Loguercio Carmelina, Romano Marco
Аннотация
BACKGROUND AND AIMS: Endoscopical examination is not always sufficient for the diagnosis of gastrointestinal masses. This study assessed the diagnostic accuracy and safety of ultrasound-guided percutaneous biopsy of gastrointestinal lesions.
METHODS: This retrospective study evaluated 114 patients who underwent ultrasound-guided biopsy of gastrointestinal masses with a 18G needle. Thirty-two of these patients underwent a 22G fine-needle biopsy for cytology. Histology was compared with a composite standard of reference for diagnosis (i.e. post-surgery histological evaluation in 73 cases and computed tomography or magnetic resonance scan findings, together with a compatible clinical follow-up for at least 24 months, in the remaining 41 cases). Safety was assessed by recording side effects for up to 4h after the procedure.
RESULTS: Of the 114 lesions evaluated, 112 were malignant (98.2%) and 2 benign (1.8%). Specimens were adequate for histology in all but one case. Specimens were obtained from the stomach (n=38; 33.3%), small bowel (n=36; 31.6%) and colon (n=40; 35.1%). Diagnosis was correct in 113/114 cases (99.1%). Sensitivity, specificity, positive and negative predictive values, and diagnostic accuracy were 99.1%, 100%, 100%, 66%, and 99%, respectively. One of the 114 patients (0.9%) bled from a gastric GIST.
CONCLUSIONS: Ultrasound-guided percutaneous biopsy of gastrointestinal lesions is a valid alternative when diagnosis of a gastrointestinal mass cannot be obtained with an endoscopical procedure.
METHODS: This retrospective study evaluated 114 patients who underwent ultrasound-guided biopsy of gastrointestinal masses with a 18G needle. Thirty-two of these patients underwent a 22G fine-needle biopsy for cytology. Histology was compared with a composite standard of reference for diagnosis (i.e. post-surgery histological evaluation in 73 cases and computed tomography or magnetic resonance scan findings, together with a compatible clinical follow-up for at least 24 months, in the remaining 41 cases). Safety was assessed by recording side effects for up to 4h after the procedure.
RESULTS: Of the 114 lesions evaluated, 112 were malignant (98.2%) and 2 benign (1.8%). Specimens were adequate for histology in all but one case. Specimens were obtained from the stomach (n=38; 33.3%), small bowel (n=36; 31.6%) and colon (n=40; 35.1%). Diagnosis was correct in 113/114 cases (99.1%). Sensitivity, specificity, positive and negative predictive values, and diagnostic accuracy were 99.1%, 100%, 100%, 66%, and 99%, respectively. One of the 114 patients (0.9%) bled from a gastric GIST.
CONCLUSIONS: Ultrasound-guided percutaneous biopsy of gastrointestinal lesions is a valid alternative when diagnosis of a gastrointestinal mass cannot be obtained with an endoscopical procedure.
Предметные рубрики MeSH
AdenocarcinomaAgedAged, 80 and overBiopsy, Fine-NeedleBiopsy, Large-Core NeedleColonEndometriosisFemaleGastrointestinal NeoplasmsGastrointestinal Stromal TumorsHumansImage-Guided BiopsyIntestine, SmallLymphoma, Non-HodgkinMaleMiddle AgedPredictive Value of TestsRetrospective StudiesSigmoid DiseasesStomachUltrasonography