Mucinous adenocarcinoma arising from a tailgut cyst: A case report.
Case report
Mucinous adenocarcinoma
Mucosal tumour
Pilonidal cyst
Retrorectal tumour
Tailgut cyst
Journal
World journal of clinical oncology
ISSN: 2218-4333
Titre abrégé: World J Clin Oncol
Pays: United States
ID NLM: 101549149
Informations de publication
Date de publication:
24 Oct 2022
24 Oct 2022
Historique:
received:
11
04
2022
revised:
12
06
2022
accepted:
11
10
2022
entrez:
7
11
2022
pubmed:
8
11
2022
medline:
8
11
2022
Statut:
ppublish
Résumé
Retrorectal hamartomas or tailgut cysts (TCs) are rare. In most cases, they are asymptomatic and benign; however, rarely, they undergo malignant transformation, mainly in the form of adenocarcinoma. A 55-year-old woman presented to our hospital with lower back pain. On magnetic resonance imaging, a large pelvic mass was found, which was located on the right of the ischiorectal fossa, extending to the minor pelvis. The patient underwent extensive surgical resection of the lesion through the right buttock. Histological examination confirmed the diagnosis of a retrorectal mucinous adenocarcinoma originating from a TC. Surgical resection of the tumour was complete, and the patient recovered without complications. The pilonidal sinus was then excised. One year later, semi-annual positron emission tomography-computed tomography and magnetic resonance imaging scans did not reveal any evidence of local recurrence or metastatic disease. Preoperative recognition, histological diagnosis, and treatment of TCs pose significant challenges. In addition, the possibility of developing invasive mucinous adenocarcinoma, although rare, should be considered.
Sections du résumé
BACKGROUND
BACKGROUND
Retrorectal hamartomas or tailgut cysts (TCs) are rare. In most cases, they are asymptomatic and benign; however, rarely, they undergo malignant transformation, mainly in the form of adenocarcinoma.
CASE SUMMARY
METHODS
A 55-year-old woman presented to our hospital with lower back pain. On magnetic resonance imaging, a large pelvic mass was found, which was located on the right of the ischiorectal fossa, extending to the minor pelvis. The patient underwent extensive surgical resection of the lesion through the right buttock. Histological examination confirmed the diagnosis of a retrorectal mucinous adenocarcinoma originating from a TC. Surgical resection of the tumour was complete, and the patient recovered without complications. The pilonidal sinus was then excised. One year later, semi-annual positron emission tomography-computed tomography and magnetic resonance imaging scans did not reveal any evidence of local recurrence or metastatic disease.
CONCLUSION
CONCLUSIONS
Preoperative recognition, histological diagnosis, and treatment of TCs pose significant challenges. In addition, the possibility of developing invasive mucinous adenocarcinoma, although rare, should be considered.
Identifiants
pubmed: 36337315
doi: 10.5306/wjco.v13.i10.853
pmc: PMC9630997
doi:
Types de publication
Case Reports
Langues
eng
Pagination
853-860Informations de copyright
©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
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