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Primitive non-neural granular cell tumour with lymph node metastasis

A Al Habeeb1, I Weinreb, D Ghazarian

  • 1University Health Network, Department of Pathology, Toronto General Hospital, Toronto, Canada. ayman.alhabeeb@uhn.on.ca

Journal of Clinical Pathology
|September 8, 2009
PubMed

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Classification of Leukocytes

Leukocytes are classified into two groups based on the presence or absence of cytoplasmic granules. Granular leukocytes, which contain granules, belong to the myeloid lineage and are divided into three subtypes: neutrophils, eosinophils, and basophils. These cells are roughly spherical and characterized by the granules in their cytoplasm.
Neutrophils are the most abundant type of granular leukocytes, comprising 50-70% of all leukocytes. They feature small, evenly distributed granules and a...