Gross and histopathological study of pituitary gland in cases of suicidal deaths: A case-control study

Suicide is a growing global concern, happening impulsively during moments of intense crisis. The pituitary gland, often referred to as the "master gland," plays a central role in regulating the body's hormones, particularly through the hypothalamic-pituitary-adrenal (HPA) axis, which governs the stress response. HPA axis dysregulation can lead to structural and functional changes in the pituitary gland, and changes in this gland offer a meaningful pathological correlate in the forensic investigation of suicidal death. As published literature on this subject is scarce, especially in the Indian context, the study adds novel regional data and may help improve understanding of neuroendocrine alterations associated with suicide.

An observational case control study in which 200 cases of suicidal deaths and 200 non-suicidal deaths were taken as control. The data on relevant epidemiological, demographic factors, and variables was collected. The pituitary gland was dissected, and gross examination and histopathological evaluation of the gland done.

Demographic analysis revealed that most cases were young adults (aged 20-30), predominantly male, from urban areas, and had low to middle socio-economic backgrounds. Additional risk factors identified among suicide victims included family history of mental illness, prior suicide attempts, psychiatric history, and substance abuse. Statistical analysis revealed a strong association between suicide and the presence of histopathological abnormalities in the pituitary gland, with a highly significant odds ratio. These findings suggest that stress-related neuroendocrine dysfunction may be a contributing factor in suicide and highlight the potential forensic value of pituitary examination in autopsies of suspected suicide cases.

The study highlights the importance of routine endocrine evaluations in mental health assessments and advocates for interdisciplinary collaboration among forensic pathologists, psychiatrists, and endocrinologists. A more integrated approach could improve early identification of individuals at risk and ultimately help reduce suicide rates.