Mucinous tumor arising in a giant sacrococcygeal teratoma: A rare case report.

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Mucinous tumor arising in a giant sacrococcygeal teratoma: A rare case report.

Medicine (Baltimore). 2017 Nov;96(47):e8759

Authors: Zhang F, Yu X, Zeng J, Dai M

Abstract
RATIONALE: Teratomas, which most frequently affect adult females, are the most common type of germ cell tumor, it always comprises derivatives of at least 2 germ layers. The most common site of primary teratomas is the ovary. Sacrococcygeal teratomas (SCTs), which are exceedingly rare in adults, are generally found in newborns or children.
PATIENT CONCERNS: A 39-year-old woman presented to our clinic with a 1-year history of gradually aggravated difficulty in micturition and defecation, and a tumor in her right buttock present since birth. Appropriate preoperative examinations showed a large (15.6 cm × 12.2 cm × 30.0 cm) multicystic SCT.
DIAGNOSES: Histologic examination confirmed a mucinous tumor arising in a giant SCT.
INTERVENTIONS: Abdominoperineal rectal resection was performed.
OUTCOMES: The patient recovered well and was discharged on day 33 of admission.
LESSONS: We report the first case of a mucinous tumor arising in an SCT, in which the teratoma presented mature tissue elements derived only from the endodermal germ layer (keratinous debris).

PMID: 29381973 [PubMed - indexed for MEDLINE]

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