Extensive Giant Malignant Phyllodes Tumor Misdiagnosed as a Fibroadenoma: A Case Report and Literature Review

Case Report

Volume 2, Issue 1

Extensive Giant Malignant Phyllodes Tumor Misdiagnosed as a Fibroadenoma: A Case Report and Literature Review

Sarah k AlArafah^4*, Mohammed A Almarzooq², Khaled M Almutawwaa³, Sahar M Aldhafeeri⁴ and Ahmed Abbas¹

¹Professor of Surgical Oncology, Consultant Surgical Oncology, Breast and Endocrine Oncology Surgery, Eastern Health Cluster, Dammam Medical Complex, Saudi Arabia
²General Surgery Resident, Surgery Department, Breast and Endocrine Oncology Surgery, Eastern Health Cluster, Dammam Medical Complex, Saudi Arabia
³Plastic Surgery Resident, Surgery Department, Plastic Surgery, Eastern Health Cluster, Dammam Medical Complex, Saudi Arabia
⁴Associated Consultant General Surgery, Surgery Department, Breast and Endocrine Oncology Surgery, Eastern Health Cluster, Dammam Medical Complex, Saudi Arabia

^*Corresponding author: Sarah k AlArafah, Associated Consultant General Surgery, Surgery Department, Breast and Endocrine Oncology Surgery, Eastern Health Cluster, Dammam Medical Complex, Saudi Arabia.
E-mail: S.alarafah@gmail.com

Received: June 04, 2026; Accepted: June 27, 2026; Published: July 05, 2026

Citation: AlArafah SK, Almarzooq MA, Almutawwaa KM, et al. Extensive Giant Malignant Phyllodes Tumor Misdiagnosed as a Fibroadenoma: A Case Report and Literature Review. J Breast Cancer Case Rep. 2026; 2(1): 112.

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Abstract

Phyllodes tumors of the breast are rare, accounting for less than 1% of all breast neoplasms. These tumors may resemble benign fibroadenomas, exhibit aggressive local recurrence, or metastasize as malignant lesions. Ulceration of phyllodes tumors can result in significant pain, infection, malodor, profuse discharge, and hemorrhage, all of which severely compromise quality of life. Presentation as a fungating or 'ruptured' breast mass is particularly uncommon. This report describes a challenging case involving a large, fungating malignant phyllodes tumor that was initially misdiagnosed as a fibroadenoma.

Keywords: Phyllodes; Tumor; Misdiagnose; Fibroadenoma; Aggressive; Breast; Giant

Article Details

Extensive Giant Malignant Phyllodes Tumor Misdiagnosed as a Fibroadenoma: A Case Report and Literature Review