Adenocarcinoma With Intestinal and Pancreatobiliary Features Arising From a Sacrococcygeal Teratoma in an Adult Female: A Case Report

Sacrococcygeal teratomas (SCTs) are rare in adults, and malignant transformation within these tumors is exceedingly uncommon. The risk of malignant transformation among adults can vary between 1% and 12% and increases over time with the endopelvic location. Here, we present a case of invasive adenoc...

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Main Authors: Yasamin Mirzabeigi, Clara Milikowski
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Case Reports in Pathology
Online Access:http://dx.doi.org/10.1155/crip/5088951
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author Yasamin Mirzabeigi
Clara Milikowski
author_facet Yasamin Mirzabeigi
Clara Milikowski
author_sort Yasamin Mirzabeigi
collection DOAJ
description Sacrococcygeal teratomas (SCTs) are rare in adults, and malignant transformation within these tumors is exceedingly uncommon. The risk of malignant transformation among adults can vary between 1% and 12% and increases over time with the endopelvic location. Here, we present a case of invasive adenocarcinoma with intestinal and pancreatobiliary features arising from a preexisting SCT in a 64-year-old female. The patient presented with a rapidly enlarging sacral mass and purulent drainage decades after the excision of a congenital lump in the sacral region. Imaging revealed a lytic lesion involving the coccyx and sacrum, accompanied by an ill-defined soft tissue mass. Histological evaluation confirmed adenocarcinoma with dual intestinal and pancreatobiliary differentiation originating from a preexisting SCT with focal involvement of the resection margin. Postoperatively, a multidisciplinary team recommended FOLFIRINOX chemotherapy followed by completion excision surgery. This case contributes to the limited literature on adult SCTs with malignant transformation, highlighting the critical need for timely and comprehensive management. Multidisciplinary evaluation, complete surgical resection, and tailored adjuvant therapy are essential to improving patient outcomes in such rare cases.
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spelling doaj-art-019ff6ef6da342fa91c1e3ef4df6b0b62025-08-20T03:46:47ZengWileyCase Reports in Pathology2090-679X2025-01-01202510.1155/crip/5088951Adenocarcinoma With Intestinal and Pancreatobiliary Features Arising From a Sacrococcygeal Teratoma in an Adult Female: A Case ReportYasamin Mirzabeigi0Clara Milikowski1Department of Pathology and Laboratory MedicineDepartment of Pathology and Laboratory MedicineSacrococcygeal teratomas (SCTs) are rare in adults, and malignant transformation within these tumors is exceedingly uncommon. The risk of malignant transformation among adults can vary between 1% and 12% and increases over time with the endopelvic location. Here, we present a case of invasive adenocarcinoma with intestinal and pancreatobiliary features arising from a preexisting SCT in a 64-year-old female. The patient presented with a rapidly enlarging sacral mass and purulent drainage decades after the excision of a congenital lump in the sacral region. Imaging revealed a lytic lesion involving the coccyx and sacrum, accompanied by an ill-defined soft tissue mass. Histological evaluation confirmed adenocarcinoma with dual intestinal and pancreatobiliary differentiation originating from a preexisting SCT with focal involvement of the resection margin. Postoperatively, a multidisciplinary team recommended FOLFIRINOX chemotherapy followed by completion excision surgery. This case contributes to the limited literature on adult SCTs with malignant transformation, highlighting the critical need for timely and comprehensive management. Multidisciplinary evaluation, complete surgical resection, and tailored adjuvant therapy are essential to improving patient outcomes in such rare cases.http://dx.doi.org/10.1155/crip/5088951
spellingShingle Yasamin Mirzabeigi
Clara Milikowski
Adenocarcinoma With Intestinal and Pancreatobiliary Features Arising From a Sacrococcygeal Teratoma in an Adult Female: A Case Report
Case Reports in Pathology
title Adenocarcinoma With Intestinal and Pancreatobiliary Features Arising From a Sacrococcygeal Teratoma in an Adult Female: A Case Report
title_full Adenocarcinoma With Intestinal and Pancreatobiliary Features Arising From a Sacrococcygeal Teratoma in an Adult Female: A Case Report
title_fullStr Adenocarcinoma With Intestinal and Pancreatobiliary Features Arising From a Sacrococcygeal Teratoma in an Adult Female: A Case Report
title_full_unstemmed Adenocarcinoma With Intestinal and Pancreatobiliary Features Arising From a Sacrococcygeal Teratoma in an Adult Female: A Case Report
title_short Adenocarcinoma With Intestinal and Pancreatobiliary Features Arising From a Sacrococcygeal Teratoma in an Adult Female: A Case Report
title_sort adenocarcinoma with intestinal and pancreatobiliary features arising from a sacrococcygeal teratoma in an adult female a case report
url http://dx.doi.org/10.1155/crip/5088951
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AT claramilikowski adenocarcinomawithintestinalandpancreatobiliaryfeaturesarisingfromasacrococcygealteratomainanadultfemaleacasereport