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Test Code DESMN Desmin Immunostain, Technical Component Only


Shipping Instructions


Attach the green pathology address label and the pink Immunostain Technical Only label included in the kit to the outside of the transport container.



Specimen Required


Supplies: Immunostain Technical Only Envelope (T693)

Specimen Type: Tissue

Container/Tube: Immunostain Technical Only Envelope (T693)

Preferred: 2 unstained positively charged glass slide (25- x 75- x 1-mm) per test ordered; sections 4-microns thick.

Acceptable: Formalin-fixed, paraffin-embedded (FFPE) tissue block

Additional Information:

1. Information on accessing digital images of IHC stains and the manual requisition form can be accessed through this website: www.mayomedicallaboratories.com/test-info/ihc/index.html

2. Clients ordering stains using a manual requisition form will not have access to digital images.

3. Clients wishing to access digital images must place the order for IHC stains electronically. Information regarding digital imaging can be accessed through this website: www.mayomedicallaboratories.com/test-info/ihc/faq.html


Secondary ID

70421

Useful For

Aids in the identification of striated and smooth muscle cells and tumors derived from this cell type

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
IHTOI IHC Initial, Tech Only No No
IHTOA IHC Additional, Tech Only No No

Method Name

Immunohistochemistry

Reporting Name

Desmin IHC, Tech Only

Specimen Type

TECHONLY

Specimen Stability Information

Specimen Type Temperature Time
TECHONLY Ambient (preferred)
  Refrigerated 

Reject Due To

Hemolysis

NA

Lipemia

NA

Icterus

NA

Other

Wet/frozen tissue

Cytology smears

Nonformalin fixed tissue

Nonparaffin embedded tissue

Noncharged slides

ProbeOn slides

Clinical Information

Desmin is an intermediate filament protein in muscle cells. In normal tissues, the antibody reacts with both striated and smooth muscle cells. This labeling is confined to the Z band in skeletal and cardiac muscle giving a characteristic striated appearance. In neoplastic tissues, the antibody reacts with tumors of myogenic origin such as those arising from smooth muscle (leiomyosarcomas) and those derived from striated muscle (rhabdomyosarcomas).

Interpretation

This test includes only technical performance of the stain (no pathologist interpretation is performed). If diagnostic consultation by a pathologist is required order PATHC / Pathology Consultation.

 

The positive and negative controls are verified as showing appropriate immunoreactivity. If a control tissue is not included on the slide, a scanned image of the relevant quality control tissue is available upon request. Contact 855-516-8404.

 

Interpretation of this test should be performed in the context of the patient's clinical history and other diagnostic tests by a qualified pathologist.

Clinical Reference

1. Attanoos RL, Griffin A, Gibbs AR: The use of immunohistochemistry in distinguishing reactive from neoplastic mesothelium. A Novel use for Desmin and Comparative Evaluation with Epithelial Membrane Antigen, p53, Platelet-Derived Growth Factor Receptor, P-Glycoprotein and Bcl-2. Histopathology 2003;43(3):231-238

2. Pollock L. Rampling D, Greenwal SE, Malone M: Desmin expression in rhabdomyosarcoma: Influence of the Desmin Clone and Immunohistochemical Method. J Clin Pathol 1995;48(6):535-538

3. Rangdaeng S, Truong LD: Comparative immunohistochemical staining for desmin and muscle-specific actin. A Study of 576 Cases. Am J Clin Pathol 1991;96(1):32-45

Day(s) and Time(s) Performed

Monday through Friday

Analytic Time

1 day

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

88342-TC, primary

88341-TC, if additional IHC

LOINC Code Information

Result ID Test Result Name Result LOINC Value
70734 Desmin IHC, Tech Only No LOINC Needed

Forms

If not ordering electronically, complete, print, and send an Immunohistochemical (IHC)/In Situ Hybridization (ISH) Stains Request Form (T763) (http://www.mayomedicallaboratories.com/it-mmfiles/ihc-and-ish-stain-request-form-mc0767-09a.pdf).