Estrogen receptor content in nuclear pellet from adenocarcinoma corporis uteri biopsies

Ninety-one patients with Stage I and II endometrial carcinoma were investigated. Biopsy material obtained prior to primary treatment was analyzed for contents of estrogen (ER) and progesterone (PgR) receptors, and the values of these were related to the degree of malignancy. ER content in the nuclear pellet was decreased at increased tumor anaplasia.