title: [Vacuolated-cell microfollicular adenoma of the thyroid].
abstract: A case of vacuolated (signet-ring) cell microfollicular adenoma of the thyroid is presented and confronted to the pertinent literature. It is a rare lesion. Its histologic aspect, featuring vacuolated cells and microfollicules, sometimes clover-shaped, and the results of the mucin stains and thyroglobulin immunostaining confirm the follicular-cell nature of the tumor and exclude primary mucin-producing tumors of the thyroid. Arrest of folliculogenesis appears to be the basic mechanism of histogenesis in our case.
mesh_terms: D000236:Adenoma / Q000032:analysis / Q000473:pathology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009077:Mucins / Q000032:analysis; D009363:Neoplasm Proteins / Q000032:analysis; D013954:Thyroglobulin / Q000032:analysis; D013964:Thyroid Neoplasms / Q000032:analysis / Q000473:pathology*; D014617:Vacuoles / Q000032:analysis
chemical_list: D009077:Mucins; D009363:Neoplasm Proteins; D013954:Thyroglobulin
vernacular_title: Adénome microfolliculaire à cellules vacuolisées de la thyroïde.