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Proficiency Testing/EQA / 2025 Surveys / Anatomic Pathology /

Surgical Pathology

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HISTOQIP CELL BLOCK PREP - HQCLB

ï»¿ HQCLB

Analytes/procedures in bold type are regulated for proficiency testing by the Centers for Medicare & Medicaid Services (CMS).

Stain/Tissue	Challenges/ Shipment A	Challenges/ Shipment B	Number of Shipments

H&E - Neck mass, HPV on sqauamous cell carcinoma	1		Two shipments per year
IHC - p16, squamous cell carcinoma	1
H&E - Pleural fluid, metastatic breast ductal carcinoma	1
IHC - GATA3, metastatic breast ductal carcinoma	1
H&E - Lung mass, FNA on a lung squamous cell carcinoma		1
IHC - p40 or p63, lung mass, FNA on a lung squamous cell carcinoma		1
H&E - Peritoneal fluid, positive PAX8 metastatic carcinoma		1
IHC - PAX8, metastatic carcinoma		1

This program augments efforts to improve the preparation of H&E and immunohistochemical slides in all anatomic pathology and cytopathology laboratories that handle cell block preparations.

Program Information

Participants may submit up to four H&E stained and coverslipped glass slides (one from each category) per mailing.

Shipping Schedule

Shipment A: January 21
Shipment B: June 16

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