Primary colony lymhoma is very malignant disease of the gastrointestinal tract. It is classified in the group of extranodal lymphomas and runs long asymtomatic, diagnosis is also very difficult , more often accidental.
We present a case of 86-year-old man treated for acute divertikulitis with typical clinical symptoms. Following further examination (colonoscopy,computed tomography) revealed a tumour-like infiltration in the sigmoid colon wall and a voluminous polyp was suspected according to the colonoscopy.
Subsequent biopsy supported the suspected malignant etiology. The patient underwent resection of the sigmoid colon sec.
Hartmann. A large 40mm gallstone was found in the resected sigmoid colon over the stenosis and the bowel wall showed diffuse thickening with several polyps, final histopatological assesment confirmed malignant lymphoma of the plasmocytoma type.
No serious complications occurred in the postoperative period; after healing, the patient was transferred to hematooncology care. The article describes the presence of two rare diseases - colonic lymphoma and gallstone ileus.
Clearly, without the biliary stone obstruction in the preexisting tumorous stenosis in the sigmoid colon, malignant hematooncology disease would not have been diagnosed.