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Unexpected placental tumor: A case report
Maissa Ben Thayer1, Linda Bel Hadj Kacem1, Ahlem Blel1
1Tunis El Manar University, Faculty of Medicine of Tunis, 1007 Tunis, Tunisia; Charles Nicolle Hospital, Department of Pathology, Tunis, Tunisia.
International Journal of Surgery Case Reports
|July 9, 2024
Summary
This case report details a rare placental teratoma (PT) found within the fetal membranes. Pathological examination confirmed the mature teratoma, highlighting the need for increased awareness of these uncommon placental tumors.
Area of Science:
- Obstetrics and Gynecology
- Pathology
- Fetal Medicine
Background:
- Placental non-trophoblastic tumors (PNTT) are rare, with placental teratomas (PT) being exceedingly uncommon.
- Less than 40 cases of placental teratomas have been documented in medical literature.
- Accurate diagnosis of PT typically relies on post-delivery pathological examination.
Observation:
- A mature placental teratoma (PT) was identified within the fetal membranes in a 30-year-old primigravida at 40 weeks gestation.
- Prenatal ultrasound revealed fetal renal agenesis and placental abnormalities, but PT was not suspected.
- Gross and microscopic examination confirmed a solid polypoid mass composed of mature squamous epithelium, skin appendages, adipose tissue, and cartilage.
Findings:
- The presented case is a mature placental teratoma (PT) arising within the fetal membranes.
- Placental teratomas are typically benign and do not usually cause fetal or maternal complications.
- Histogenesis of placental teratomas remains poorly understood.
Implications:
- Increased awareness and knowledge of placental teratomas are crucial for accurate diagnosis.
- Pathological examination is the definitive method for diagnosing placental teratomas.
- Further research into the histogenesis of PT may improve understanding and diagnostic approaches.
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