A preoperative presumptive diagnosis of ameloblastoma is sometimes made in the light of available clinical and radiological data, which are generally not very characteristic. The final diagnosis can only be made on the basis of histologic features. In this paper, a case of ameloblastoma diagnosed preoperatively by fine-needle aspiration cytology is presented and the potential value of this tech...

INTRODUCTION The recently-proposed Bethesda reporting system has offered clinical recommendations for each category of reported thyroid cytology, including repeated fine-needle aspiration (FNA) for non-diagnostic and atypia/follicular lesions of undetermined significance, but there are no sound indications for repeated examination after an initial benign exam. OBJECTIVE To investigate the cli...

Fine-needle aspiration biopsy is a diagnostic procedure used routinely in the evaluation of patients referred with a thyroid swelling. The technique and the results in our series of 233 patients, which included 39 carcinomas, are presented. A relatively high diagnostic specificity of 81% was found, whereas the diagnostic sensitivity was considerably lower (58%). It is concluded that fine-needle...

OBJECTIVE To compare the cost-effectiveness of fine-needle aspiration biopsy, iodine 131 scintigraphy, and ultrasonography for the initial diagnostic workup of a solitary palpable thyroid nodule. DESIGN A deterministic cost-effectiveness analysis was conducted using a decision tree to model the diagnostic strategies. SETTING A single, mid-Atlantic academic medical center. MAIN OUTCOME MEA...

A qualified (indeterminate) diagnosis (QD), such as "suggestive of malignancy," is thought to complicate patient management by heightening clinical uncertainty. We report that QDs increase the overall effectiveness of renal, thyroid, and breast fine-needle aspiration (FNA) biopsy and that the probability that a qualified diagnosis is negative (QDN) can be predicted by the formula QDN = number o...

Evaluation of thyroid nodules remains a challenge for primary care physicians. To include or exclude the presence of malignancy in a thyroid nodule, radioisotope scan, ultrasound, and fine-needle aspiration biopsy of the thyroid generally are used. The objectives of this study were to determine the utility and cost effectiveness of fine-needle aspiration biopsy of solitary thyroid nodules in a ...

Giant cell tumor of soft tissue is an uncommon neoplasm. To our knowledge, its cytopathology obtained using the fine-needle aspiration biopsy technique has not been previously described. We report an example of the fine-needle aspiration cytology of giant cell tumor of soft tissue in a 40-year-old woman, and correlate it with the corresponding tissue specimen.

Fine needle aspiration cytology has undergone increasing utilization in the evaluation of hepatic neoplasms. Experience with liver aspirates has demonstrated that problems in differential diagnosis require thorough understanding of criteria for distinguishing different tumor types. The present report describes the cytologic presentation of primary and metastatic hepatic tumors with emphasis on ...

Background and Objectives: Thyroid gland because of its superficial location is amenable to direct physical examination. Clinical assessment of thyroid lesions by means of physical examination, thyroid scans and ultrasonography is not completely reliable. Fine needle aspiration cytology (FNAC) is the most cost-effective, safe and an initial diagnostic test in the pre-operative evaluation of thy...