Ovarian Mucinous Cystadenofibroma Mimicking Malignancy: A Case Report of a Rare Subtype

TL;DR

A rare benign ovarian tumor was mistaken for a malignant one, highlighting the importance of accurate diagnosis during surgery.

Contribution

The case emphasizes the value of frozen section analysis in distinguishing benign from malignant pelvic tumors.

Findings

A 34-year-old patient had a large abdominal mass initially suspected to be malignant.

Frozen section analysis confirmed the diagnosis of benign mucinous cystadenofibroma.

The case underscores the importance of considering rare benign tumors in differential diagnosis.

Abstract

Benign mucinous cystadenofibromas are very rare tumors of the ovary. They often mimic malignant pelvic tumors in terms of size and appearance. Here, we report a case of a 34-year-old female patient presenting with a 20 × 18 cm large abdominal mass. Clinically and radiologically, a diagnosis of a borderline malignant ovarian mass was made, and an exploratory laparotomy was planned. Intraoperative frozen section evaluation resulted in a diagnosis of benign mucinous cystadenofibroma. This highlights the need to consider mucinous cystadenofibroma as a differential diagnosis for large pelvic tumors and emphasizes the role of frozen section in the optimal surgical management of such cases.

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