Home Products Most Popular Contact
No items in your cart.
The page below is a sample from the LabCE course White Cell and Platelet Disorders: Peripheral Blood Clues to Nonneoplastic Conditions. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about White Cell and Platelet Disorders: Peripheral Blood Clues to Nonneoplastic Conditions (online CE course) »
How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 123 CE courses, most popular
$95 Add to cart
Pick Your Courses
Up to 8 CE hours
$50 Add to cart
Individual course$20 Add to cart

Alder Anomaly

Alder anomaly is characterized by large azurophilic granules that stain dark-purple and are seen throughout the leukocyte cytoplasm, even covering the nucleus. The inclusions (granules) are seen in the cytoplasm of almost all mature leukocytes i.e., granulocytes, lymphocytes, and monocytes. This distinguishes Alder anomaly inclusions from toxic granulation, which is only observed in neutrophils. Another feature that distinguishes Alder anomaly from toxic changes is the lack of cytoplasmic vacuoles of toxic origin in the neutrophils of Alder anomaly.
The background condition in Alder anomaly is mucopolysaccharidosis, collectively, a group of inherited disorders where a deficiency of lysosomal enzymes are lacking that are needed to degrade mucopolysaccharides. The inclusions observed in the leukocytes represent partially degraded mucopolysaccharides within lysosomes. Accompanying conditions are hepatosplenomegaly, corneal opacities, and mental retardation.