Physiologic Menstrual 18 F-FDG Uptake in Uterine Didelphys Mimicking Metastasis in a Patient With Ovarian Immature Teratoma.

Clin Nucl MedMay 18, 2026 (epub)
Case ReportOncology (Medical)Radiology (Diagnostic)

Joon-Kee Yoon, Yong-Jin Park, Young-Sil An

✦ AI-curated · Sources linked

Case in brief

A 27-year-old woman with ovarian immature teratoma underwent 18 F-FDG PET/CT for preoperative staging, which showed intense FDG uptake in two distinct pelvic structures, suggesting possible primary endometrial cancer or metastasis. MRI confirmed the presence of uterine didelphys, a rare Müllerian duct anomaly, without any anatomic lesions. This case highlights the physiological menstrual uptake in a duplicated uterus that can mimic malignancy.

Diagnostic / clinical pearl

Clinicians should be aware that physiological menstrual uptake in a duplicated uterus can resemble malignancy on PET/CT, necessitating careful evaluation of anatomical variants.

Source

PubMed · PMID 42149926

Published in Clin Nucl Med. This summary was written by xxcode from the publication's abstract and metadata. It is not peer reviewed and is not a substitute for the original article. For clinical decisions, review the original publication.

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