Endoscopic ultrasound-guided fine-needle aspiration of intrathoracic and intra-abdominal spindle cell and mesenchymal lesions.

Published

Journal Article

BACKGROUND: The role of endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) in the evaluation of spindle cell and mesenchymal lesions is unclear. This study reviews the use of EUS-FNA in diagnosing intrathoracic and intra-abdominal spindle and mesenchymal cell lesions at an academic institution. METHODS: All EUS-FNA specimens with a significant spindle or mesenchymal cell component were retrieved. Follow-up was comprised of clinical correlation, chart review, or evaluation of subsequent tissue specimens, including FNAs, biopsies, and/or surgical resections. Lesions were categorized as either inflammatory/reactive or neoplastic. RESULTS: Forty-four EUS-FNA specimens were retrieved from 39 patients (21 men and 18 women with a median age of 61 years [range, 20-88 years]). Anatomic sites included 19 lymph node specimens, 15 gastrointestinal tract specimens, 7 pancreatic specimens, and 4 other anatomic site specimens. Twenty-two cases were inflammatory/reactive lesions, including 17 granulomatous lesions and 5 cases of chronic pancreatitis. Twenty-two cases were neoplastic, including 14 gastrointestinal stromal tumors, 2 smooth muscle tumors, 2 sarcomatoid carcinomas, 2 melanomas, 1 sarcoma, and 1 solitary fibrous tumor. A specific cytologic diagnosis was rendered in 30 cases (81%). Immunocytochemistry was performed on 21 neoplastic cases and contributed to the differential diagnosis in 18 cases. No false-positive findings were encountered. Three false-negative results were identified and were attributed to sampling error. CONCLUSIONS: Spindle cell neoplasms are rarely encountered on EUS-FNA. The differential diagnosis encompasses a wide variety of benign and neoplastic entities. Correlation of cytomorphology and ancillary studies yields a high diagnostic accuracy of spindle cell and mesenchymal lesions on EUS-FNA.

Full Text

Duke Authors

Cited Authors

  • Bean, SM; Baker, A; Eloubeidi, M; Eltoum, I; Jhala, N; Crowe, R; Jhala, D; Chhieng, DC

Published Date

  • February 25, 2011

Published In

Volume / Issue

  • 119 / 1

Start / End Page

  • 37 - 48

PubMed ID

  • 20967877

Pubmed Central ID

  • 20967877

International Standard Serial Number (ISSN)

  • 1934-662X

Digital Object Identifier (DOI)

  • 10.1002/cncy.20120

Language

  • eng

Conference Location

  • United States