组织发生
病理
甲状腺癌
旅客8
家族性腺瘤性息肉病
甲状腺球蛋白
生物
甲状腺
筛状
淋巴血管侵犯
免疫组织化学
医学
癌症
内分泌学
结直肠癌
转移
生物化学
遗传学
基因
转录因子
作者
Ana Echegoyen-Silanes,José Javier Pineda-Arribas,María Sánchez‐Ares,Soledad Cameselle-García,Beatriz Sobrino,Clara Ruíz-Ponte,Magalí Piso-Neira,Emma Anda,José Cameselle-Teijeiro
出处
期刊:Virchows Archiv
[Springer Science+Business Media]
日期:2023-01-23
卷期号:482 (3): 615-623
被引量:1
标识
DOI:10.1007/s00428-023-03495-9
摘要
Cribriform morular thyroid carcinoma (CMTC) is a rare malignant thyroid tumor with a peculiar growth pattern secondary to permanent activation of the WNT/β-catenin pathway. CMTC may be associated with familial adenomatous polyposis or sporadic; it shares morphological features with papillary thyroid carcinoma (PTC) and was considered a variant of PTC in the 2017 WHO classification of tumors of endocrine organs. The new 5th edition of the WHO classification of endocrine and neuroendocrine tumors considered CMTC an independent thyroid neoplasm of uncertain histogenesis. A thymic/ultimobranchial pouch-related differentiation in CMTC has been recently postulated. We, however, have used the pathological and immunohistochemical features of this case of CMTC with 2 novel oncogenic somatic variants (c.3428_3429insA, p.(Tyr1143Ter) and c.3565del, p. (Ser1189Hisfs*76) of the APC gene to propose an origin from follicular cells (or their endodermal precursors). As usual in CMTC, the morular component of this tumor was positive for CDX2. Given the fact that WNT/β-catenin signaling, through CDX2, activates large intestine and small intestine gene expression, we postulate that in CMTC, the tumor cells have their terminal differentiation blocked, thus showing a peculiar primitive endodermal (intestinal-like) phenotype negative for sodium-iodide symporter, thyroperoxidase, and thyroglobulin. Establishing the histogenesis of CMTC is very relevant for the development of appropriate therapies of redifferentiation, particularly in patients where the tumor cannot be controlled by surgery.
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