Cytology : diagnostic principles and clinical correlates
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Fine-needle aspiration (FNA) and small core needle biopsy are mainstays in the evaluation of liver masses. They are usually performed percutaneously with guidance by computed tomography (CT), ultrasonography, or magnetic resonance imaging (MRI), and its principal value is in the diagnosis of malignancies. FNA can also be performed with the aid of endoscopic ultrasonography (EUS).
Ducatman BS, Bernacki KD. Liver In: Cytology : diagnostic principles and clinical correlates. Philadelphia, PA: Elsevier; 2021; p. 425-50.