Publication: Tailgut cyst associated with a carcinoid tumor: case report and review of the literature
Authors
Mathieu, A. ; Chamlou, R. ; Le Moine, F. ; Maris, C. ; Van de Stadt, J. ; Salmon, I.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
We report the case of a 49-year-old woman
who presented a tailgut cyst lined by a variety of
epithelium including squamous, columnar and
transitional. Fortuitously a microscopic carcinoid tumor
expressing immunohistochemically neuroendocrine
markers was identified in the cystic wall.
Tailgut cysts are congenital abnormalities located in
the presacrococcygeal area occurring usually in adult
patients. Clinical diagnosis is difficult because they are
often asymptomatic. Patients may present symptoms
resulting from local mass effects or complications. The
differential diagnoses include rectal duplication cysts,
cystic sacrococcygeal teratomas, epidermal cysts,
epidermoid cysts, anal duct or gland cysts. Magnetic
resonance imaging has recently become the modality of
choice to image the cyst. Malignant transformation is
rare; 23 cases including 10 carcinoid tumors have been
reported in the literature. To our knowledge, this is the
eleventh case of carcinoid tumor arising in a tailgut cyst.
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