PML and acute promyelocytic leukemia: PML (promyelocytic leukemia) bodies are matrix associated, spherical, nuclear bodies, with a diameter of 0.1–1.0 \documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\upmu \text {m}$$\end{document}μm, which can be found in most cell lines and many tissues.