MANN - Overview: Alpha-Mannosidase, Leukocytes

Test Catalog

Test ID: MANN    
Alpha-Mannosidase, Leukocytes

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

Diagnosis of alpha-mannosidosis

Genetics Test Information Provides information that may help with selection of the correct test or proper submission of the test request

Diagnostic testing. Not available for carrier detection.


Alpha-mannosidosis is an autosomal recessive lysosomal storage disorder caused by reduced or absent acid alpha-mannosidase enzyme activity.


For an individual clinically suspicious for an oligosaccharidosis and with a positive screening result (OLIWB / Oligosaccharidoses Screen, Leukocytes or OLITC / Oligosaccharidoses Screen, Fibroblasts) suggestive of alpha-mannosidosis, determining enzymatic activity is the next step of the diagnostic workup.


This test cannot be used to establish carrier status for alpha-mannosidosis.

Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test

Method Name A short description of the method used to perform the test


NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name

Alpha-Mannosidase, Leukocytes

Aliases Lists additional common names for a test, as an aid in searching

Alpha-Mannosidase (WBC)
Mannosidoses, Alpha
Mannosidosis, Alpha
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