Phi Bodies: Peroxidatic Particles that Produce Crystalloidal Cellular Inclusions

Abstract
Unique, spindle-shaped particles (.vphi. bodies) and rods with peroxidatic activity are found in certain epithelial cells of normal mice, clofibrate-fed rats and in leukemic leukocytes. The ellipsoidal shape of .vphi. bodies apparently results from the deformation of spherical granules by extrusion of axial crystalloid that subsequently fragments into rods.