恶组是一种少见的全身性组织细胞增殖的恶性肿瘤，以结肠浸润为首发症状并伴有骨髓坏死则极少见。我院收治一例，报道如下：患者，李某某，男，22岁，因腹痛．腹泻，血便。而入院。查体：神志清，面色苍白，表情痛苦，皮肤粘膜无黄染，无畏寒发热，全身淋巴结不肿大，肝脾助下 The evil group is a rare malignancy of systemic cell proliferation. It is rare that the first symptom of colon infiltration is associated with bone marrow necrosis. In our hospital, a case was reported as follows: Patient, Li Mou, male, 22 years old, suffering from abdominal pain. Diarrhea, bloody stools. And admitted to hospital. Physical examination: clear-headed, pale, with painful expression, no yellow-stained skin and mucous membranes, no chills, fever, no lymph nodes, and liver and spleen