Fontana Masson stain

Alphabetical Test listing

Fontana Masson stain-12376 - Technical only, 12379 - Technical & interpretation

Test name:

Test number:

12376 - Technical only, 12379 - Technical & interpretation

Excellian order number:

LAB12376
LAB12379

Alternate names:

Melanin
Special stain

Tests included:

All special stains will include a positive control tissue

Useful for:

This stain is used for the demonstration of argentaffin substances such as melanin, argentaffin granules of carcinoid tumors, and some neurosecretory granules in tissue specimens.

Specimen type:

Tissue

Collection container:

Formalin vial/container

Processing instructions:

Prepare a formalin-fixed, paraffin-embedded (FFPE) tissue block

Transport container:

FFPE tissue block

Alternate processing instructions:

Prepare two (2) 4 micron thick section unstained slides from an FFPE tissue block

Alternate transport container:

Slides in a Slide holder - 5 specimen

Required forms/information:

Histopathology Processing & Special Stains requisition

Transport and stability:

Ambient

Protect paraffin block and/or slides from excessive heat

Reason for rejection:

Insufficient tissue in block
Mislabeled/Unlabeled block or slides
Broken slides

Performing lab:

AHL - Histology: A

Days set up:

Mo - Fr

TAT:

24 - 48 hours

Method:

Histochemical staining and microscopic evaluation

Reference ranges:

An interpretive pathology report will be provided for Technical with Interpretation cases.

CPT codes:

88313

Date created:

06/29/2021

Revised date:

07/01/2021

Review date:

01/12/2024