Pancreatic insufficiency-anemia-hyperostosis syndrome

Pancreatic insufficiency-anemia-hyperostosis syndrome, also known as Pearson-like syndrome or congenital sideroblastic anemia with exocrine pancreatic insufficiency and bone abnormalities, is an extremely rare inherited metabolic disorder characterized by three cardinal features: exocrine pancreatic insufficiency, sideroblastic anemia, and hyperostosis (abnormal thickening of bone). The condition affects multiple body systems including the hematopoietic (blood-forming) system, the gastrointestinal/pancreatic system, and the skeletal system. Patients typically present in infancy or early childhood with failure to thrive, malabsorption due to pancreatic enzyme deficiency, and anemia that is often refractory to standard treatments. The sideroblastic anemia is characterized by the presence of ringed sideroblasts in the bone marrow, indicating abnormal iron utilization in red blood cell precursors. Skeletal abnormalities include diffuse hyperostosis, which involves excessive bone growth and cortical thickening. Additional features may include hepatomegaly and metabolic disturbances. Treatment is primarily supportive and symptomatic. Pancreatic enzyme replacement therapy is used to manage exocrine pancreatic insufficiency and improve nutrient absorption. Anemia may require blood transfusions and careful monitoring of iron status. Management of skeletal complications is guided by orthopedic assessment. Due to the extreme rarity of this condition, there are no established curative therapies, and long-term outcomes depend on the severity of organ involvement and response to supportive care.

Common questions about Pancreatic insufficiency-anemia-hyperostosis syndrome