Related Experiment Video
Updated: Mar 18, 2026

A Two-Step Method for Percutaneous Transhepatic Choledochoscopic Lithotomy
Published on: September 13, 2022
Choledocholithiases in a child with Hemoglobin Evans [alpha2 62(E11) Val→Met]
Itaru Hayakawa1, Hiroshi Hataya1, Takashi Kaneko2
1Department of General Pediatrics Tokyo Metropolitan Children's Medical Center Tokyo Japan.
Insights
We report the first case of choledocholithiasis (bile duct stones) in a 10-year-old boy with Hemoglobin Evans. Epigastric pain in children with hemolytic conditions may indicate biliary colic, even if rare.
Area of Science:
- Pediatric Gastroenterology
- Hepatology
- Hematology
Background:
- Choledocholithiasis, or bile duct stones, is uncommon in pediatric populations.
- Hemolytic conditions can predispose individuals to gallstone formation.
- Hemoglobin Evans is a rare hemoglobinopathy.
Observation:
- A 10-year-old boy with diagnosed Hemoglobin Evans presented with epigastric pain.
- This presentation prompted an investigation into potential biliary pathology.
Findings:
- The patient was diagnosed with choledocholithiasis.
- This represents the first documented case of choledocholithiasis in a patient with Hemoglobin Evans.
Implications:
- Physicians should consider biliary colic in children presenting with epigastric pain, especially those with a known hemolytic status.
- This case highlights the importance of considering choledocholithiasis in pediatric patients with specific hematologic conditions.
- Early recognition and management of biliary stones are crucial in pediatric patients.
Abstract:
We present the first description of choledocholithiases in a 10-year-old boy with Hemoglobin Evans. Although biliary stones are much less common in children than in adults, epigastric pain in children with known hemolytic status should alert the physician to the possibility of biliary colic.
Related Concept Videos
Lifecycle of Erythrocytes
The resident phagocytic macrophages deal with these damaged cells by engulfing them and separating their globin and heme groups....
Disorders of Erythrocytes
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
Inborn Errors of Metabolism
Chronic Kidney Disease II: Clinical Manifestations
Erythropoiesis
Endoscopic Procedures V: ERCP
Patient...
