Endoscopic ultrasound-guided fine-needle aspiration

Endoscopic ultrasound-guided fine-needle aspiration of solid pancreatic masses with rapid on-site cytological evaluation by endosonographers without attendance of cytopathologists

“…ROSE allows reduction in the number of needle passes. Wiersema et al [13] and Chang et al [7] have stressed the importance of ROSE by cytopathologists in EUS-FNA. After each needle pass, a cytopathologist prepares a slide and determines the cellularity of the specimen and the type of cells and, if possible, gives a preliminary diagnosis.…”

Laparoscopic resection for gastrointestinal stromal tumors in the stomach

“…An accurate differential diagnosis requires immunohistochemistry of a biopsied specimen. Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is a good method for obtaining cytological samples [17,18]. The sensitivity of cytological samples achieved through EUS-FNA is 88-91%, and the specificity is close to 100% for the diagnosis of malignant lesions confirmed by surgical findings or long-term clinical followup [19].…”

Endoscopic ultrasound-guided fine-needle aspiration biopsy (EUS-FNAB): past, present, and future

“…However, this technique only allowed the needle to be displayed as a small echogenic dot, making the procedure technically difficult and risky. In 1994, Wiersema et al 12,13 and Chang et al 14 stressed the importance of the presence of an on-site cytopathologist during the procedure to assess whether or not a specimen was adequate or whether further puncture attempts were necessary. Giovannini et al 16 confirmed and extended these preliminary studies, and showed that EUS-FNAB was safe, with no significant complications.…”