Reproductive System, Male

Testis, Interstitial Cell - Hyperplasia

    Narrative
    Testis, Interstitial cell - Hyperplasia in a male F344/N rat from a chronic study. Two focal areas of hyperplasia are present in the testis.
    Testis, Interstitial cell - Hyperplasia in a male F344/N rat from a chronic study. Higher magnification of one of the foci in Figure 1.
    Testis, Interstitial cell - Hyperplasia in a male B6C3F1 mouse from a chronic study. The interstitial cells are diffusely hyperplastic.
    Testis, Interstitial cell - Hyperplasia in a male B6C3F1 mouse from a chronic study. There is diffuse hyperplasia of interstitial cells.

    Authors

    Dianne M. Creasy, PhD, Dip RCPath, FRCPath
    Dianne Creasy Consulting LLC
    Pipersville, PA

    Robert R. Maronpot, DVM, MS, MPH, DACVP, DABT, FIATP
    Senior Pathologist
    Experimental Pathology Laboratories, Inc.
    Research Triangle Park, NC

    Dipak K. Giri, DVM, PHD, DACVP
    Toxicologic Pathologist
    Integrated Laboratory Systems, Inc.
    Research Triangle Park, NC

    Reviewers

    Mark F. Cesta, DVM, PhD, DACVP
    Staff Scientist, NTP Pathologist
    Cellular and Molecular Pathology Branch
    Division of the National Toxicology Program
    National Institute of Environmental Health Sciences
    Research Triangle Park, NC

    David E. Malarkey DVM, PhD, DACVP, FIATP
    Head, National Toxicology Program Pathology Group
    Cellular and Molecular Pathology Branch
    Division of the National Toxicology Program
    National Institute of Environmental Health Sciences
    Research Triangle Park, NC