Intranuclear cytoplasmic organelles in hematopoietic diseases

Mitochondria, rough endoplasmic reticulum, Golgi apparatus and other cytoplasmic organelles were found within the nuclei, not in 'nuclear pseudo-inclusions', of some cells in several hematopoietic disorders. Mitoses were fairly often observed in the atypical cells of these cases. We suggest that these intranuclear cytoplasmic organelles may be trapped in the nucleus during an abnormal mitosis.