[Ileus of the small intestine in intestinal marginal-zone B-cell lymphoma of mucoid-associated lymphoid tissue (MALT)].

HISTORY AND ADMISSION FINDINGS: A 67-year-old man had complained of diffuse abdominal pain and constipation for 4 days without indication of any underlying disease. On admission there was no evidence of weight loss, fever or nocturnal sweating. INVESTIGATIONS: Physical examination revealed signs of an acute abdomen with high-pitched bowel sounds and diffuse abdominal guarding. The X-ray showed ileus of the small intestine which required emergency laparotomy. An obstructing conglomerate tumour was present in the area of the ileum, ca. 80 cm proximal to the caecum. It was removed by partial resection of the small intestine. DIAGNOSIS: Ileus of the small intestine with a low-malignant marginal zone B-cell (non-Hodgkin) lymphoma of MALT type (mucoid-associated lymphoid tissue). TREATMENT AND COURSE: Postoperative staging indicated no further manifestation of the lymphoma. As no radical operation in resecting the tumour had been performed, combined radio- and chemotherapy was undertaken. CONCLUSION: Marginal B-cell lymphomas of the small intestine are only rarely seen in central Europe. Despite its usually slow growth this non-Hodgkin lymphoma of low malignancy can produce an acute mechanical ileus without prodromal symptoms. A multimodal therapeutic approach is often employed, but there are no established treatment strategies.