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Background <p>Milk curd syndrome (MCS), also referred to as milk curd obstruction (MCO) or lactobezoar (LB), is a rare gastrointestinal condition that primarily affects preterm infants with very low or extremely low birth weight. It is typically associated with formula feeding or fortified human milk. While most cases of LB involve the stomach, an intestinal localization is exceedingly rare, particularly in term infants.</p> Case presentation <p>We report the case of a 4.5-week-old term male infant who was presented with a right-sided irreducible inguinal hernia and signs of mechanical ileus. Laparoscopic reduction revealed a hemorrhagic but viable bowel segment. The patient was re-admitted 2 months later with symptoms of mechanical bowel obstruction. Exploratory laparotomy revealed an intraluminal mass in the terminal ileum. Segmental resection was performed and histological examination confirmed the diagnosis of an ileal LB.</p> Discussion <p>The formation of MCS is attributed to multifactorial causes, including immature gastrointestinal function, dehydration and diverse nutritional factors. Although gastric LBs have been more frequently reported, ileal involvement is rarely documented, especially in term infants. This highlights the importance of also considering an ileal LB as a differential diagnosis in cases with signs of an intestinal obstruction, even outside the typical risk group.</p> Conclusion <p>Ileal lactobezoar is a rare but potentially life-threatening cause of neonatal intestinal obstruction. Prompt recognition and surgical management are critical for a favorable outcome.</p>

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Intestinaler Laktobezoar – seltene Ursache einer intestinalen Obstruktion im Kindesalter

  • 期刊论文

  • 发表日期：

    2026年3月2日

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  • Y. Isaev,
  • A. Worm

摘要

Background

Milk curd syndrome (MCS), also referred to as milk curd obstruction (MCO) or lactobezoar (LB), is a rare gastrointestinal condition that primarily affects preterm infants with very low or extremely low birth weight. It is typically associated with formula feeding or fortified human milk. While most cases of LB involve the stomach, an intestinal localization is exceedingly rare, particularly in term infants.

Case presentation

We report the case of a 4.5-week-old term male infant who was presented with a right-sided irreducible inguinal hernia and signs of mechanical ileus. Laparoscopic reduction revealed a hemorrhagic but viable bowel segment. The patient was re-admitted 2 months later with symptoms of mechanical bowel obstruction. Exploratory laparotomy revealed an intraluminal mass in the terminal ileum. Segmental resection was performed and histological examination confirmed the diagnosis of an ileal LB.

Discussion

The formation of MCS is attributed to multifactorial causes, including immature gastrointestinal function, dehydration and diverse nutritional factors. Although gastric LBs have been more frequently reported, ileal involvement is rarely documented, especially in term infants. This highlights the importance of also considering an ileal LB as a differential diagnosis in cases with signs of an intestinal obstruction, even outside the typical risk group.

Conclusion

Ileal lactobezoar is a rare but potentially life-threatening cause of neonatal intestinal obstruction. Prompt recognition and surgical management are critical for a favorable outcome.