Mucinous Adenocarcinoma Arising in a Mature Ovarian Teratoma.
Tanin Zadeh, Komeil Mirzaei Baboli, Sara Salehiazar et al.
✦ AI-curated · Sources linked
Case in brief
A woman in her 30s presented with a 19 cm right ovarian mass. She underwent extensive surgical intervention, including right salpingo-oophorectomy and lymphadenectomy. Initial frozen section suggested an immature teratoma, but final pathology identified mucinous adenocarcinoma arising from a mature teratoma. All lymph nodes and staging biopsies were negative for carcinoma, with the final stage classified as FIGO IC1.
What made this case unusual
The case illustrates a rare instance of mucinous adenocarcinoma developing within a mature cystic teratoma, which is an uncommon malignant transformation.
Diagnostic / clinical pearl
Clinicians should be aware of the potential for malignant transformation in mature cystic teratomas and the importance of thorough sampling and immunohistochemistry for accurate diagnosis.
Why it matters
This case underscores the need for careful differentiation between primary ovarian neoplasms and metastatic disease, which is crucial for guiding management strategies.