Final answer:
Esophageal web is a medical condition characterized by the presence of thin, membranous tissue that forms across the esophagus, causing narrowing of the lumen. While it is not directly associated with a metabolic abnormality, it may be seen in individuals who have certain metabolic disorders or conditions, such as iron deficiency anemia.
Step-by-step explanation:
Esophageal web is a medical condition characterized by the presence of thin, membranous tissue that forms across the esophagus, causing narrowing of the lumen. While esophageal web is not directly associated with a metabolic abnormality, it may be seen in individuals who have certain metabolic disorders or conditions, such as iron deficiency anemia. Iron deficiency anemia can lead to the formation of esophageal web due to the deficiency of iron needed for normal cell growth and repair.