Hepatobiliary changes in Nigerians with sickle cell anaemia

Area of Science:

• Hematology
• Pathology
• Hepatology

Background:

• Sickle cell anaemia is a genetic blood disorder with significant systemic complications.
• Liver involvement is a common but complex manifestation in sickle cell anaemia patients.
• Understanding the histopathological changes in the liver is crucial for managing patient outcomes.

Purpose of the Study:

• To investigate the detailed histopathological features of liver specimens from sickle cell anaemia patients.
• To correlate observed liver pathologies with patient age and disease duration.
• To identify key histological markers of liver damage in sickle cell anaemia.

Main Methods:

• Autopsy liver specimens were obtained from 58 patients with sickle cell anaemia.
• Histological examination of liver tissue was performed.
• Observations included sinusoidal distension, haemosiderosis, erythrophagocytosis, portal triaditis, cholestasis, necrosis, fibrosis, and extramedullary erythropoiesis.

Main Results:

• Sinusoidal distension was universally present in all 58 specimens.
• Haemosiderosis and erythrophagocytosis were observed in 56 patients.
• Portal triaditis was noted in 47 patients, cholestasis in 24, and focal necrosis/fibrosis in 23.
• Extramedullary erythropoiesis was found in 3 patients.
• Older patients (30-45 years) showed severe haemosiderosis, chronic inflammation, pigment stones, and fatty changes.

Conclusions:

• Sickle cell anaemia consistently causes sinusoidal distension in the liver.
• Progressive liver damage, including severe haemosiderosis and chronic inflammation, is evident in older patients.
• Histopathological liver changes in sickle cell anaemia are multifaceted and age-dependent, necessitating targeted clinical monitoring.