Diagnostic and management challenges in a partially infarcted borderline phyllodes tumor in an adolescent female: A case report and review of literature

Table 1 A detailed treatment timeline table including diagnostic work-up, therapeutic intervention, follow-up, and outcomes

May 22, 2024 Initial evaluation	Clinical presentation of a painful right breast mass measuring 4.8 cm by ultrasound
May 23, 2024 Follow-up with rapid breast enlargement	Repeat ultrasound demonstrated a 5.5 cm solid mass with a new cystic component measuring 2.5 cm
	Core needle biopsy showed infarcted fibroepithelial neoplasm, favoring a juvenile fibroadenoma
	Conservative management was trialed
June 27, 2024 Initial excision and final tumor diagnosis	Pathologic diagnosis of the surgical specimen: Borderline phyllodes tumor extending to the surgical margins
August 15, 2024 Re-excision of surgical margins	The multidisciplinary team recommended margin re-excision based on NCCN guidelines
	Final pathology showed no residual tumor
August 21, 2024 1-week follow-up after re-excision	Smooth recovery from surgery without complications
December 3, 2024 6-month follow-up	The ultrasound showed a 1.0 cm × 0.8 cm × 0.8 cm mass forming lesion adjacent to the prior surgical site
	Core needle biopsy demonstrated benign breast parenchyma with post-surgical changes