Phi bodies: peroxidatic particles that produce crystalloidal cellular inclusions

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Science  26 Aug 1977:
Vol. 197, Issue 4306, pp. 895-898
DOI: 10.1126/science.268030


Unique, spindle-shaped particles (phi 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 phi bodies apparently results from the deformation of spherical granules by extrusion of axial crystalloid that subsequently fragments into rods.