Invasive fibrous (Riedel's) thyroiditis.
D000752:Anemia, Pernicious / Q000150:complications; D001237:Asphyxia / Q000150:complications / Q000209:etiology / Q000473:pathology; D005260:Female; D006801:Humans; D008875:Middle Aged; D013577:Syndrome; D013966:Thyroiditis / Q000150:complications / Q000209:etiology / Q000473:pathology