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Michigan Pathology Specialists

Education & Training, General Information, Histology

Best Practices for Small Tissue Material

Tissue specimens less than 0.1cm may yield insufficient results if submitted for Tissue Pathology. To make the best use of diagnostic tissue material please follow the below guidelines:

Biopsy Size Order Code Test Preservative
<0.1cm LAB2111263 Fine Needle Aspiration (FNA) Cytology *CytoLyt solution
>0.1cm LAB8 Tissue Pathology 10% Formalin

*Place entire specimen in CytoLyt. Do not attempt to make smears from specimen.

Please contact the Corewell Health Pathology Department at (616)267-2622 Mon-Fri, 8am-5pm, or the Corewell Health Laboratory Call Center at (616)774-7721, 24/7 to speak with a Pathologist.

Test Utilization

Test Update: Pathologist Reviews

The test Pathologist Review Peripheral Smear [LAB7550] will become a lab only orderable in the near future. Effective, Monday, May 1, 2023, all provider ordered pathology smear reviews on outpatients will be cancelled by the hematopathologist.  If a pathologist interpretation of the blood smear is still desired, please order a Pathology Consult [LAB1230850], ask for a “general pathology consult” and indicate your question for the pathologist who will be interpreting the blood.

For Corewell Health West Epic Providers (Epic Hyperspace, Epic Community Connect and Epic Care Link) a tip sheet is available for ordering in Epic. If you cannot access the tip sheet or have further questions, please use the contact us link above.


Pathology Consult [LAB1230850]

Pathologist Review Peripheral Smear (lab only orderable) [LAB7550]

General Information

Peripheral Smear Interpretation for CBCs performed outside of Corewell Health Laboratories

Please note that there will be a change in the format of pathologist review of outside peripheral blood smear slides that are not from CBCs performed at Corewell Health (formerly Spectrum Health) laboratory facilities. The peripheral smear interpretation will now be found in the anatomic pathology portion of the medical record under an outside consult heading (SO prefix) instead of in the laboratory section near the CBC indices.

This change may result in a different format for your results to be viewed. It may change the type and amount of bill your patients may receive.

If you have any questions, please use the contact us link above or email Michigan Pathology Specialists, P.C.