Utility of cell blocks in the diagnosis of thyroid aspirates

Diagnostic Cytopathology
Niria Sanchez, Suzanne M Selvaggi

Abstract

Cell blocks (CBs) are often prepared with fine-needle aspirates (FNAs) from multiple organs as an adjunct to smears in the diagnosis of aspirated lesions. However, the literature contains few reports on their utility with regard to specific organ sites. At our institution, CBs are made routinely on FNAs when there is sufficient material remaining after smear preparation, with thyroid representing the largest volume. The aim of this study was to determine the utility of CBs in the diagnosis of thyroid lesions. From January 2002 to April 2004, 546 thyroid FNAs were performed. Eighty-two (15%) cases, from 60 females and 20 males (age range, 17-88 yr; mean, 50 yr), had CBs and formed the basis of this study. Seventy-four (90%) of the cases were performed by the radiologist or the clinician and 8 (10%) by the pathologist, all of which had an immediate assessment for adequacy. One to 7 passes were performed with an average of 3/case. The needles were immediately rinsed in Hanks' Balanced Salt Solution after smear preparation. CBs were made on bloody specimens/those with tissue fragments. Cell-block slides were reviewed for the presence of cellular elements and classified into three categories: (1) contributory, (2) noncontributory, o...Continue Reading

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Citations

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