Abstract
Developmental disorders affecting the hypothalamic-pituitary system can result in pituitary hormone deficiency showing a diverse clinical presentation. A significant majority of these disorders are closely linked to defects in transcription factor genes which play a major role in pituitary development. Those affecting the early phase of organogenesis typically lead to complex conditions affecting the pituitary as well as structures in the central nervous system. Transcription factors involved in the late phase can result in combined but rarely isolated pituitary hormone deficiency without extra-pituitary manifestation. Identifying the defects in these pituitary transcription factor genes may provide a useful tool in predicting disease progression as well as screening family members. Several pituitary transcription factors can be detected in the adult gland as well which is strongly emphasized in the World Health Organization's most recent guideline for pituitary tumor classification. Our review summarizes the current essential knowledge relevant for clinical endocrinologists. Orv Hetil. 2018; 159(7): 278-284.
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