Endocrine System

Adrenal Gland - Necrosis

Narrative

Comment:

Adrenal gland necrosis (Figure 1, Figure 2, Figure 3, Figure 4, and Figure 5) can occur in any region of the adrenal gland, though the cortex (especially the zonae fasciculata and reticularis) is more frequently affected than the medulla. Necrosis can be focal or diffuse. Necrosis is characterized by disruption or obliteration of normal architecture, with fragmentation, hypereosinophilia, pyknosis, karyorrhexis, and/or karolysis of the constituent cells (Figure 2 and Figure 5). Associated hemorrhage and/or inflammatory cell infiltrates may also be present.

Adrenal gland necrosis (especially cortical) is usually secondary to other pathologic processes, such as stress, ischemia, hemorrhage, inflammation, and systemic neoplasia (e.g., mononuclear cell leukemia in rats). However, adrenal cortical necrosis can also be induced by experimental administration of various agents, such as bacterial toxins or certain exogenous chemicals. Adrenal medullary necrosis, though less common, can also be induced by certain exogenous chemicals.

Recommendations:

Adrenal gland necrosis should be diagnosed and assigned a severity grade and site modifier (i.e., cortex or medulla). If it is present in both the cortex and medulla, the site modifier may be omitted and the location described in the pathology narrative. When necrosis is secondary to another process (e.g., inflammation, degeneration, or neoplasia), it should not be diagnosed separately unless warranted by severity. Lesions that are secondary to necrosis (e.g., inflammation, mineralization) should not be diagnosed separately, unless warranted by severity, but should be described in the pathology narrative.

References:

Chen-Pan C, Pan I-J, Yamamoto Y, Sakogawa T, Yamada J, Hayashi Y. 1999. Prompt recovery of damaged adrenal medulla induced by salinomycin. Toxicol Pathol 27:563-572.

Full Text: http://tpx.sagepub.com/content/27/5/563.full.pdf

Frith CH, Botts S, Jokinen MP, Eighmy JJ, Hailey JR, Morgan SJ, Chandra M. 2000. Non-proliferative lesions of the endocrine system in rats, E-1. In: Guides for Toxicologic Pathology. STP/ARP/AFIP, Washington, DC.

Full Text: https://www.toxpath.org/docs/SSNDC/EndocrineNonprolifRat.pdf

Hamlin MH, Banas DA. 1990. Adrenal gland. In: Pathology of the Fischer Rat: Reference and Atlas (Boorman GA, Eustis SL, Elwell MR, Montgomery CA, MacKenzie WF, eds). Academic Press, San Diego, 501-518.

Abstract: https://www.ncbi.nlm.nih.gov/nlmcatalog/9002563

National Toxicology Program. 2010. NTP TR-558. Toxicology and Carcinogenesis Studies of 3,3',4,4'-Tetrachloroazobenzene (TCAB) [CAS No. 14047-09-7] in Harlan Sprague-Dawley Rats and B6C3F1 Mice (Gavage Studies). NTP, Research Triangle Park, NC.

Abstract: https://ntp.niehs.nih.gov/go/33564

National Toxicology Program. 3011. NTP TR-564. Toxicology and Carcinogenesis Studies of 1-Bromopropane (CAS No. 106-94-5) in F344/N Rats and B6C3F1 Mice (Inhalation Studies).

Abstract: https://ntp.niehs.nih.gov/go/34854

Nyska A, Maronpot RR. 1990. Adrenal gland. In: Pathology of the Mouse: Reference and Atlas (Maronpot RR, Boorman GA, Gaul BW, eds). Cache River Press, Vienna, IL, 509-536.

Abstract: http://www.cacheriverpress.com/books/pathmouse.htm

Rosol TJ, Yarrington JT, Latendresse J, Capen CC. 2001. Adrenal gland: Structure, function, and mechanisms of toxicity. Toxicol Pathol 29:41-48.

Abstract: https://www.ncbi.nlm.nih.gov/pubmed/11215683

Rushing GD, Britt RC, LD Britt. 2006. Effects of hemorrhagic shock on adrenal response in a rat model. Ann Surg 243:652-656.

Abstract: https://www.ncbi.nlm.nih.gov/pubmed/16633000

Szabo S, Lippe IT. 1989. Adrenal gland: Chemically induced structural and functional changes in the adrenal cortex. Toxicol Pathol 17:317-329.

Abstract: https://www.ncbi.nlm.nih.gov/pubmed/2675282

All Images

Adrenal gland, Cortex - Necrosis in a female B6C3F1 mouse from a subchronic study. Diffuse cortical necrosis involves primarily the zona fasciculata.

Adrenal gland, Cortex - Necrosis in a female B6C3F1 mouse from a subchronic study (higher magnification of Figure 1). The zona fasciculata is collapsed due to necrosis of cortical cells (Ne).

Adrenal gland, Cortex - Necrosis in a female B6C3F1 mouse from a subchronic study (higher magnification of Figure 1). There is loss of cellular detail, fragmented cortical cells, and amorphous debris in the zona fasciculata (Ne).

Adrenal gland, Cortex - Necrosis in a female Sprague-Dawley rat from a chronic study. There is focal cortical necrosis in the zona fasciculata (arrow).

Adrenal gland, Cortex - Necrosis in a female Sprague-Dawley rat from a chronic study (higher magnification of Figure 4). There is a focal area in the zona fasciculata in which the normal architecture is disrupted and replaced by necrotic cells (arrow) and amorphous debris.

Authors and Reviewers

Authors

Mark J. Hoenerhoff, DVM, PhD, DACVP
Associate Professor
Veterinary Pathologist, In Vivo Animal Core
Unit for Laboratory Animal Medicine
University of Michigan
Ann Arbor, MI

Georgette D. Hill, D.V.M., Ph.D.
Toxicologic Pathologist/Assistant Pathology Program Manager
Comparative Molecular Pathology Division
Integrated Laboratory Systems, Inc.
Research Triangle Park, NC

Margarita M. Gruebbel, DVM, PhD, DACVP
Senior Pathologist
Experimental Pathology Laboratories, Inc.
Research Triangle Park, NC

Reviewers

Thomas J. Rosol, DVM, PhD, DACVP
Professor of Veterinary Biosciences
Senior Advisor, Life Sciences, Technology Commercialization and Knowledge Transfer
The Ohio State University
Columbus, OH

Gordon Flake, MD
Staff Scientist
NTP Pathologist
Cellular and Molecular Pathology Branch
National Institute of Environmental Health Sciences
Research Triangle Park, NC