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Interpretive Handbook

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Test 61777 :
CD71, Immunostain

Clinical Information Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test

The transferrin receptor (CD71) is highly expressed on the surface of cells of the erythroid lineage and mediates the uptake of transferrin-iron complexes. Transferrin receptor expression levels are highest in early erythroid precursors through the intermediate normoblast phase, then expression decreases through the reticulocyte phase.

Useful For Suggests clinical disorders or settings where the test may be helpful

Assessment of erythroid lineage

Interpretation Provides information to assist in interpretation of the test results

This test will be processed as a pathology consultation. An interpretation will be provided.

Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

This test is not an orderable test. Order 70012 / Pathology Consultation. The consultant will determine the need for special stains.


This request will be processed as a consultation. An interpretive report will be provided.

Clinical References Provides recommendations for further in-depth reading of a clinical nature

1. Dong HY, Wilkes S, Yang H: CD71 is selectively and ubiquitously expressed at high levels in erythroid precursors of all maturation stages: A comparative immunochemical study with glycophorin A and hemoglobin A. Am J Surg Pathol 2011 May;35(5):723-732

2. Marsee DK, Pinkus GS, Yu H: CD71 (transferrin receptor): an effective marker for erythroid precursors in bone marrow biopsy specimens. Am J Clin Pathol 2010;134:429-435

3. Sokmensuer LK, Muftuoglu S, Asan E: Immunohistochemical analysis of CD71, CD98 and CD99 activation antigens in human palatine and nasopharyngeal tonsils. Saudi Med J 2005;26(3):385-389