Intra-adrenal hepatic heterotopia

Area of Science:

• Developmental biology
• Histopathology
• Fetal pathology

Background:

• Intra-adrenal hepatic heterotopia is a rare congenital anomaly where liver tissue is found within the adrenal gland.
• Understanding its occurrence is crucial for diagnosing and managing rare fetal conditions.

Observation:

• A second case of intra-adrenal hepatic heterotopia was identified in a male fetus at 26 weeks gestation.
• The liver nodule was incidentally discovered in the right adrenal gland, unencapsulated, and integrated with the fetal cortex.

Findings:

• The heterotopic liver tissue comprised immature hepatocytes arranged in cords with extensive hemopoiesis.
• Histological examination revealed abnormalities including absent hexagonal lobular architecture, incomplete portal tracts, and a lack of bile ducts and canaliculi.
• Evidence suggested a failure in bile formation and glycogen deposition within the heterotopic liver tissue.

Implications:

• This case contributes to the limited understanding of intra-adrenal hepatic heterotopia, highlighting its potential developmental abnormalities.
• Further research into the embryological origins and clinical significance of such anomalies is warranted.
• Detailed histological analysis provides insights into aberrant liver development in fetal conditions.