The risk of improperly staging Hodgkin's disease with partial splenectomy.

Partial splenectomy has been proposed for staging Hodgkin's disease, but the risk of thereby missing limited splenic involvement is unknown. To assess that risk, we reviewed all spleens removed during staging laparotomies for Hodgkin's disease at our institution, assessing splenic weight, the characteristics of all nodules, and grossly visible subcapsular disease. Among 180 spleens, 65 had splenic disease. Fifty-three had six or more nodules; for 49 of those, other abdominal involvement had been present or the disease was so diffuse that staging by partial splenectomy would have been correct. The remaining 12 spleens (18%) contained five or fewer nodules. Eleven had no grossly visible subcapsular nodules, and five of the 11 were associated with no other abdominal involvement. In four of those five, the disease was localized to one area in such a way that it could have been missed by partial splenectomy. All positive spleens averaged 415 g; the four spleens with localized involvement averaged 287 g. Thus, in four of 65 patients, a few splenic nodules in a localized distribution not visible grossly were the only evidence of abdominal Hodgkin's disease, and if partial splenectomy had been done there would have been a 6.2 per cent risk of understaging their Hodgkin's disease.