Open AccessMucinous tumor arising in a giant sacrococcygeal teratoma
Author(s) -
Fengtian Zhang,
Xianjun Yu,
Zhao-Hui Jin,
Min Dai
Publication year - 2017
Publication title -
medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.59
H-Index - 148
eISSN - 1536-5964
pISSN - 0025-7974
DOI - 10.1097/md.0000000000008759
Subject(s) - medicine , sacrococcygeal teratoma , abdominoperineal resection , teratoma , immature teratoma , coccyx , mature teratoma , surgery , germ cell tumors , colorectal cancer , cancer , pregnancy , sacrum , chemotherapy , fetus , genetics , biology
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).