Risk of Recurrence for Clinical Stage I and II Patients With Teratoma Only at Primary Retroperitoneal Lymph Node Dissection.

Objective To evaluate the oncologic outcomes of patients with retroperitoneal teratoma only at primary retroperitoneal lymph node dissection (RPLND) who did not receive adjuvant chemotherapy. Materials and Methods Between 1979 and 2010, 23 patients with clinical stage (CS) I and II disease underwent primary RPLND at our institution with teratoma only in the retroperitoneum. No patient received adjuvant chemotherapy and the minimum follow-up was 2 years. Results At the initial diagnosis, 13 patients (56.5%) had CS I disease and 10 patients (43.5%) had CS II disease. Pathologic staging demonstrated IIA in 13 patients (56.5%), IIB in 8 patients (34.8%), and IIC in 2 patients (8.7%). The 5-year disease-free survival (DFS) was 100% with a median follow-up of 5.8 years (range, 2.1-25.4). DFS was not significantly different comparing pathologic stage IIA vs IIB/IIC disease ( P  = .73). Two patients (14%) developed late relapses. One patient had a pelvic recurrence 11 years after primary RPLND. Final pathology from the pelvic resection demonstrated embryonal carcinoma. He remains disease free after his second surgery. The second patient had a contralateral retroperitoneal recurrence with yolk-sac tumor and teratoma 11 years after primary RPLND. He was treated with chemotherapy followed by postchemotherapy RPLND. Conclusion The relapse rate for patients with teratoma only at primary RPLND is low irrespective of PS. Adjuvant chemotherapy is therefore not recommended in the management of these patients.