W1214: Difficult Diagnoses in Cytology: Pancreatic FNA, Bile Duct Brushings and Lung EBUS
W1214: Difficult Diagnoses in Cytology: Pancreatic FNA, Bile Duct Brushings and Lung EBUS
Sat Jul 12, 2014  8:00 - 11:30 AM 
Studio E

Objectives:

At the end of the session, the participants will be able to:

  • Bile duct brushing cytology – challenges in making definitive diagnoses.
  • Pancreatic FNA cytology – differentiating between benign and malignant lesions.
  • EBUS – cytology of lung and lymph nodes of the mediastinum – criteria for diagnoses.
  • How to evaluate and process cytology specimens for lymphoma.

Description:

This workshop will cover practical issues of cytology in the challenging areas of pancreatic FNA specimens, bile duct brushings and lung/mediastinal FNAs performed by endoscopy (EBUS). Increased use of endoscopic ultrasound-guided fine needle aspiration of lesions at these sites has rendered this a significant area of medical/non-gynecologic cytology, and one in which many pathologists possess limited training. The risks of over- and under-diagnosis are significant; we review the cytologic appearance of benign and reactive changes in comparison with the neoplastic/malignant lesions expected. We will review the following information in a case-based PowerPoint presentation: clinical history, diagnostic imaging findings, fine needle aspiration cytology (Diff Quick and Pap stained), cell blocks/core biopsies, ancillary studies and pertinent literature reviews. The role of rapid on-site cytologic evaluation for triaging samples will also be discussed. The workshop will be of value to: pathology residents, cytotechnologists, general and anatomic pathologists.