Atypical and borderline endometrioid adenofibromas of the ovary. A report of 27 cases

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This study classified 27 ovarian endometrioid adenofibromas as atypical or borderline based on epithelial atypia and found excellent prognoses for both categories with no recurrences or deaths during follow-up.

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Bell and Scully investigated the clinical significance of varying epithelial atypicality in a series of 27 ovarian endometrioid adenofibromas. The researchers classified these tumors as either atypical, showing features similar to endometrial hyperplasia, or borderline, characterized by closely packed glands with low-grade malignant nuclear features but no invasion. Follow-up data spanning up to 18.5 years revealed that none of the patients with atypical tumors died from the disease, and only one borderline case was detected post-mortem after an initial period of disease-free survival. This paper is centrally about endometriosis — specifically, it examines endometrioid adenofibromas, which are rare ovarian tumors often associated with endometriotic cysts.

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Abstract

The significance of varying degrees of epithelial atypicality was investigated in 27 endometrioid adenofibromas and cystadenofibromas of the ovary. The tumors were classified as atypical or borderline on the basis of the degree of atypicality of the epithelial element. All tumors were confined to the ovary at the initial operation and most of them were treated by a hysterectomy and bilateral salpingo-oophorectomy. Seven tumors with mild to severe cytologic and architectural atypicality similar to that encountered in atypical endometrial hyperplasia were classified as atypical adenofibromas. No recurrences or deaths from tumor occurred in patients with this type of tumor during 1-18.5 years of follow-up. Twenty tumors that contained closely packed glands or epithelial islands with a cribriform pattern composed of cells with low-grade malignant nuclear characteristics embedded in an abundant fibromatous stroma without evidence of invasion were classified as borderline. Nineteen patients with tumors of this type had no evidence of disease 1-13 years after initial therapy. One of these tumors was discovered at autopsy. These data, although based on a relatively small series of cases, suggest that atypical endometrioid adenofibromas and those of borderline malignancy have an excellent prognosis.
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Atypical and borderline endometrioid adenofibromas of the ovary A report of 27 cases - Debra A. Bell - Robert E. Scully Abstract: The significance of varying degrees of epithelial atypicality was investigated in 27 endometrioid adenofibromas and cystadenofibromas of the ovary. The tumors were classified as atypical or borderline on the basis of the degree of atypicality of the epithelial element. All tumors were confined to the ovary at the initial operation and most of them were treated by a hysterectomy and bilateral salpingo-oophorectomy. Seven tumors with mild to severe cytologic and architectural atypicality similar to that encountered in atypical endometrial hyperplasia were classified as atypical adenofibromas. No recurrences or deaths from tumor occurred in patients with this type of tumor during 1-18.5 years of follow-up. Twenty tumors that contained closely packed glands or epithelial islands with a cribriform pattern composed of cells with low-grade malignant nuclear characteristics embedded in an abundant fibromatous stroma without evidence of invasion were classified as borderline. Nineteen patients with tumors of this type had no evidence of disease 1-13 years after initial therapy. One of these tumors was discovered at autopsy. These data, although based on a relatively small series of cases, suggest that atypical endometrioid adenofibromas and those of borderline malignancy have an excellent prognosis. From

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Condition tags

endometriosis

MeSH descriptors

Adenofibroma Endometriosis Ovarian Neoplasms Adenofibroma Adenofibroma Adult Aged Endometriosis Endometriosis Female Humans Middle Aged Ovarian Neoplasms Ovarian Neoplasms

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europepmc
last seen: 2026-09-20T09:27:46.357103+00:00
pubmed
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