Korean J Cytopathol.  1998 Jun;9(1):117-122.

Fine Needle Aspiration Cytoloy of Poorly Differentiated "Insular" Carcinoma of the Thyroid: A Case Report

• Lee HJ
• Park KS
• Kim YS
• Lee KY
• Kang CS
• Shim SI

Abstract

Cytologic features of a poorly differentiated "insular" carcinoma of the thyroid are presented. In fine needle aspiration cytology, the aspirates were highly cellular and tumor cells were arranged in loose clusters or singly dispersed on focally necrotic background. Occasional microfollicles were evident. The tumor cells had poorly defined, scanty cytoplasm and most of the nuclei were fairly uniform with coarse chromatin pattern. A few large pleomorphic cells were also noted. The cytologic findings of the present case were correlated well with the histologic findings, which showed typical insular pattern and the presence of uniform cells with occasional pleomorphism.

Keyword

Poorly differentiated "insular" carcinoma; Thyroid; Fine needle aspiration cytology

MeSH Terms

Biopsy, Fine-Needle*
Chromatin
Cytoplasm
Thyroid Gland*
Chromatin