Adrenal gland hemorrhage in patients with fatal bacterial infections

Jeannette Guarner1, Christopher D Paddock, Jeanine Bartlett

  • 1Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA. Jeanette.Guarner@choa.org

Insights

Bacterial infections frequently cause adrenal gland pathology, with hemorrhage being the most common finding in fatal cases. Bacteria are often detected in hemorrhaged adrenal glands, suggesting a pathogenic role for various bacterial species.

Area of Science:

  • Pathology
  • Microbiology
  • Infectious Diseases

Background:

  • Adrenal gland pathology is a known complication of bacterial infections.
  • Hemorrhage is specifically linked to meningococcemia, while abscesses occur in neonatal infections.

Purpose of the Study:

  • To investigate the histopathology of adrenal glands in patients with bacterial infections.
  • To determine the frequency and types of adrenal lesions and their association with specific bacteria.

Main Methods:

  • Analysis of adrenal gland histopathology in 65 patients with documented bacterial infections.
  • Use of immunohistochemistry to detect bacteria and bacterial antigens in adrenal tissues.
  • Correlation of findings with specific bacterial species identified in various tissues.

Main Results:

  • Bacteria were detected in the adrenal glands of 61% of patients.
  • Adrenal hemorrhage was observed in 60% of cases.
  • Bacteria or antigens were found in 79% of hemorrhaged adrenal glands, with Neisseria meningitidis being the most frequent pathogen, but other bacteria were also implicated.

Conclusions:

  • Hemorrhage is the predominant adrenal gland pathology in fatal bacterial infections.
  • Bacteria are frequently present in hemorrhaged adrenal glands, indicating a potential pathogenic role.
  • A diverse range of bacteria, not just Neisseria meningitidis, can cause adrenal lesions.

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