title: [Pathological, clinical and radiological study of colonic lympho-reticulosarcoma. Report of 8 cases (author's transl)].
abstract: The authors report 8 cases of lympho-reticulosarcoma of the colon and emphasize the rareness of this tumour (10 percent of cases) compared with other localisations in the stomach and small intestine. Whether primary or secondary, lymphosarcoma of the colon has various radiological appearances, depending on the mode of development of the sarcoma in the wall of the colon. Mainly sub-mucosal, it may remain localised or extend to the whole of the colon, predominating in the ileo-coecal and recto-sigmoid regions. Localised tumour forms present either in the form of large polycyclic lacunae, sometimes invaginated or as vast ulcerations with irregular nodular margin, or as due to parietal infiltration and exoluminal development of the tumour mass and neighbouring adenopathy. It is sometimes confused with carcinoma of the colon, e.g. vegetating carcinoma, colloid carcinoma, or peritoneal metastases, or with a regional abscess, e.g. appendix abscess or diverticulosis. The correct diagnosis is made on operation. The extensive colonic forms rarely take on the appearance of lymphoid pseudopolyposis, more often that of a very unusual nodular form formed of hazy lenticular lacunae. It may be confused with nodular colitis, it differs from this, however, by the absence of ulceration, changes in caliber and the persistance of normal haustration, a reticulated appearance of the mucosal outline during evacuation of the barium. In all cases, the discovery of a colonic lympho-reticulosarcoma implies complete digestive radiological investigation in order to seek gastric, duodenal or intestinal localisations, together with a search for other extra-digestive localisations. In fact, the great diffusion of the lesions modifies the prognosis and the therapeutic attitude. These lymphosarcomas and reticulosarcomas of the colon have a similar pathological and radiological appearance but differ by their sensitivity to treatment with cobalt, as reticulosarcomas are more resistant.
mesh_terms: D000328:Adult; D000368:Aged; D001706:Biopsy; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D003949:Diagnostic Techniques, Surgical; D005260:Female; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011859:Radiography; D009626:Terminology as Topic
vernacular_title: Etude anatomo-clinique et radiologique des lympho-réticulosarcomes coliques. A propos de 8 observations