Failure of the isthmus lobe to fuse in the midline.
Four developmental anomalies of the thyroid gland are to be noted: a pyramidal lobe, failure of the lobes of thyroid tissue to develop, failure of the isthmus to fuse, and absence of a significant part of the lateral lobes. We encountered failure of the isthmus to fuse in the midline of the thyroid gland in a 48-year-old female cadaver.
Yüksel
M
M
Department of Anatomy, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
Yüksel
E
E
Kaymaz
F
F
D002102:Cadaver; D004210:Dissection; D005260:Female; D006801:Humans; D008875:Middle Aged; D013961:Thyroid Gland / Q000002:abnormalities* / Q000033:anatomy & histology