BACKGROUND Thyroid core biopsies obtained with ultrasound (US)-guided needles are an alternative to conventional fine-needle aspiration and, according to various authors, have greater sensitivity and specificity. The technique is inexpensive, rapid and reliable with a low rate of complications, similar to conventional fine-needle aspiration procedures. OBJECTIVES This paper critically reviews...

B by means of aspiration through a needle has become at Memorial Hospital an indispensable method of obtaining tissue for microscopic diagnosis. The technic is now well established, and the method has been repeatedly described.’’ Admittedly, skill in performing aspiration biopsy and in interpreting the tissue so obtained cannot readily be acquired except in centers in which considerable numbers...

Fine-needle thyroid aspiration biopsy has a 20-year history in Scandinavia but has seen little use in North America owing to concern about the dissemination of malignant disease and the more limited use of aspiration cytology in general. We have reviewed our experience with this method in 103 cases, and on the basis of our work and the accumulated evidence of others, believe that the procedure ...

In the majority of cases, fine needle aspiration biopsy of the pancreas is used to confirm or exclude the presence of malignancy. New therapeutic trials need a precise diagnosis before treatment. Material consists of smears, microbiopsy and monolayer cytology. Microbiopsies and monolayer cytology can also be used for complementary techniques. The sensitivity of the technique is better for solid...

We have previously shown that cytological diagnosis based on fine-needle aspiration biopsy (FNAB) is a safe and efficient method for the discrimination between benign, primary malignant and metastatic bony lesions. We have now studied metastatic lesions to assess the diagnostic accuracy and to ascertain whether FNAB allows identification of the primary lesion. Between 1990 and 1997, 447 patient...

Fine-needle aspiration (FNA) of inflammatory and neoplastic head and neck masses has become a widely used procedure in otolaryngology-head and neck surgery. Using both subjective (patient perception) and objective (complication rate, accuracy) criteria, this prospective study evaluated patients undergoing FNA with and without anesthesia. Seventy-five patients were enrolled into 1 of 3 study gro...

BACKGROUND Thyroid fine needle aspiration cytology (FNAC) is the standard diagnostic modality for thyroid nodules. However, it has limitations among which is the incidence of non-diagnostic results (Thy1). Management of cases with repeatedly non-diagnostic FNAC ranges from simple observation to surgical intervention. We aim to evaluate the incidence of malignancy in non-diagnostic FNAC, and the...