B-cells as well as the paucity of CD57+ cells'. The expression of EMA by these cells3 is not consistent6. Advanced stage at presentation appears to be common3i6. The debate continues as to whether T-cell rich B-cell lymphomas deserve a special categorisation within B-cell neoplasms. The reason for recruitment of a large number of T-cells is unknown, and the possibility of a better prognosis as a result thereof, has not been borne out6. Although the entity has received most attention in lymph nodes, its occurrence at extranodal sites, such as liver has been recorded5. This case, to our knowledge, is the first instance of pulmonary presentation of a T-cell rich B-cell lymphoma which, apart from being the objective of this report, points out the potential diagnostic difficulties of this type of lymphoma in the lung.Case reports 373 References 1. 2.3. 4. 5.6. Ramsay AD, Smith WJ, Isaacson PG. T-cell-richB-cell lymphoma. Am. 1. Surg. Pathol. 1988; 12; 433-443. Ng CS, Chan JKC. Hui PK. Lau WH. Large B-cell lymphomas with a highcontentofreactiveT-cells. H u m . Pathol. 1989; 20; 1145-1154. Chittal SM, Brousset P, Voigt J-J, Delsol G. Large B-cell lymphoma rich in T-cells and simulating Hodgkm's disease. Histopathology Macon WR, Williams ME, Greer JP, Stein RS, Collins RD, Cousar JB. T-cell rich B-cell lymphomas. A cliicopathologic study of 19 cases. Am. J. Surg. Pathol. 1992; 16; 351-363. Khan SM, Cottrell BJ, Millward-Sadler GH, Wright DH. T-cell-rich B-cell lymphoma presenting as liver disease. Histopathology 1993; Krishnan J, Wallberg K, Frizzera G. T-cell-rich large B-cell lymphoma. A study of 30 cases supporting its histologic heterogeneity and lack of clinical distinctiveness. Am. I. Surg.