2Carson H J. Unexpected synchronous non Hodgkin's lymphoma encountered during the treatment of a previously-diagnosed carci- noma: report of three cases[J]. Leuk ymphoma, 1996,23(5-6) : 625-629.
3Brennan P, Scelo G, Hemminki K, et al. Second primary canc- ers among 109 000 cases of non-Hodgkin's lymphoma [J]. Br J Cancer,2005,93(1) :159-166.
4Nakamura S, Aoyagi K, Iwanaga S, et al. Synchronous and meta- chronous primary gastric lymphoma and adenocarcinoma~ a clinico- pathological study of 12 patients [J]. Cancer, 1997, 79 (6): 1077- 1085.
5Nakamura K, Omagari J, Kunitake N, et al. Non-Hodgkin lym- phoma and coexisting primary cancers: a retrospective clinical a- nalysis of 10 patients [J]. Am J Clin Oncol, 1999,22 (3) : 283- 285.
6Chan A O, Chu K M, Yuen S T, et al. Synchronous gastric ad- enoeareinoma and mueosa-assoeiated lymphoid tissue lymphoma in association with Helicobacter pylori infection: comparing re- ported cases between the East and West [J]. Am J Gastroen- terol, 2001,96(6) : 1922-1924.
7Lira M M, Moreira L R, Ruano T, et al. Concomitant detection of hematological neoplasm and carcinoma: report on seven cases [J]. Sao Paulo Med J,2008,126(4) :245-247.
8Warren S, Gates O. Multiple primary malignant tumors : sur- vey of the literature and statistical study[J]. A m J Cancer, 1932,16: 1358-1414.
9Jellinger K, Radiaszkiewicz T. Involvement of the central nerv- ous system in malignant lymphomas[ J]. Virchows Arch A Pathol Anat Histol, 1976,370 (4) : 345-362.
10Nakagawa K, Sakaki S, Fujta H, et ai. A case of primary in- tracranial malignant lymphoma associated with gastric carcinoma [J]. GanNo Rinsho,1987,33(8):937-942.