Abstract:
BACKGROUND:The capacity of neonatal sacrococcygeal teratomas (SCT) to recur is a well-recognized phenomenon. However, only a few studies have reported recurrence of the tumors beyond childhood. METHODS:A follow-up of patients for the detection of late recurrent SCT was performed in 45 patients, ages 4-43 years (mean, 21.5 years). All of the patients had been operated on in infancy for a benign SCT. RESULTS:Three adults with persistent or recurrent SCT were found. The recurrent tumors were diagnosed 21-43 years after the initial diagnosis and operative treatment. Two recurrences were histologically benign, and one was malignant. In the patient with the malignant recurrence, the coccyx was not removed primarily. The malignant recurrence was a mucinous adenocarcinoma and probably originated from a preexisting benign epithelial component of the teratoma. CONCLUSIONS:The capacity of a benign SCT to recur may be retained into adulthood. Follow-up of patients after operation for a SCT, even when the tumor is benign, should extend far beyond infancy. Abdominal radiographs may help detect late recurrent tumors with intrapelvic calcifications. When any recurrence is found, malignancy should be suspected.
journal_name
Cancerjournal_title
Cancerauthors
Lahdenne P,Heikinheimo M,Nikkanen V,Klemi P,Siimes MA,Rapola Jdoi
10.1002/1097-0142(19931215)72:12<3727::aid-cncr282subject
Has Abstractpub_date
1993-12-15 00:00:00pages
3727-31issue
12eissn
0008-543Xissn
1097-0142journal_volume
72pub_type
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