<unk> , or<unk>  anomaly, is an inherited abnormality of white blood cells associated with mucopolysaccharidosis. When blood smears and bone marrow preparations from patients with<unk>  are stained and examined microscopically, large, coarse granules may be seen in their neutrophils, monocytes, and lymphocytes. The condition may be mistaken for toxic granulation, a type of abnormal granulation in neutrophils that occurs transiently in inflammatory conditions. In addition to mucopolysaccharidosis,<unk>  may occur in lipofuscinosis and Tay–Sachs disease. While the anomaly is generally considered to exhibit autosomal recessive inheritance, it may also occur in carriers who are heterozygous for the Tay–Sachs mutation, although the inclusions are much less frequent than in homozygotes.<unk>  is not diagnostic of any disorder and does not correlate with disease severity. Affected white blood cells function normally.<unk><unk>  inclusions stain appear violet when treated with Wright–Giemsa stain and, in mucopolysaccharidosis, stain metachromatically with toluidine blue. Metachromatic staining is not seen in Tay–Sachs disease. The granules tend to be round or comma-shaped and may be surrounded by a clearing in the cytoplasm.
Alder–Reilly anomaly
May–Hegglin anomaly
Waardenburg syndrome
Brill–Zinsser disease
Gunther disease
Aagenaes syndrome
Filippi Syndrome
Koolen–De Vries syndrome