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  • Title: [Cytologic diagnosis of abdominal lesions with fine needle aspiration guided by ultrasound].
    Author: Candia P, Rojas M, Alvarado M, Garassini MA, Römer MA.
    Journal: G E N; 1990; 44(2):141-5. PubMed ID: 2152268.
    Abstract:
    The purpose of this work was to analyse the advantages and disadvantages of puncture-aspiration with fine needle, guided by ultrasonography, trying to determine its usefulness in our hospitals and its reliability in the diagnosis of intraabdominal lesions of different locations. 29 punctures were practiced on 19 patients, 9 women and 10 men of ages comprised between 34 and 94 years, with lesions in different organs of the abdominal cavity diagnosed by ultrasonography with real time equipment and lineal 3.5 and 5 MHz transducers. After cleaning and antisepsis a Chiba needle is introduced under ultrasonographic vision, up to the location of the lesion, the guide is removed and under a negative pressure, the sample is taken, which is later dried into the air and coloured using the May-Grünwald-Giemsa Technique. Only in one case it was not possible to obtain adequate material for the cytological study. There were 11 positive cases for malignity and 7 negative, one of which was a false negative. The sensibility of the method was of 91.6% with a specificity of 100% and a reliability of 89.4%. We definitely believe that the method is practical, very easy to carry out in our hospitals with a minimum amount of risk, and most of all, dependable to clarify certain diagnoses.
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