OBJECTIVE: Our purpose was to review patients with granulosa and theca cell
tumors as filed in the Emil Novak Ovarian Tumor Registry.
STUDY DESIGN: Our study was a descriptive. retrospective study of 454 case
records.
RESULTS: The reviewed diagnoses were for 97 patients with granulosa cell tu
mors, 116 with theca cell tumors, and 97 with granulosa-theca cell tumors.
The remaining cases (n = 144) were reclassified as "nonspecific" gonadal st
romal tumors (n = 61), luteomas of pregnancy (n = 7), and 76 "other" cases.
These included poorly differentiated cancer, metastatic cancer, mixed meso
dermal tumors, and sarcomas. The tumor-related mortality rate for the 310 p
atients with granulosa, theca, and granulosa-theca cell tumors was 7% (37.3
% for granulosa cell tumors only). The surgical stage of disease was the mo
st significant prognostic factor, with a mortality rate of at least 40%, gi
ven that the tumor had spread beyond the ovary.
CONCLUSION: Because the differential diagnoses of particularly granulosa ce
ll tumors included several conditions with an extremely poor prognosis, an
accurate histologic diagnosis is crucial.