Abnormal hypothalamus morphology Interhypothalamic adhesion 2020-08-29T11:25:49Z Hypothalamic adhesion The appearance of the interhypothalamic adhesions visible in the sagittal plane as an additional small ovoid structure between the fornices and lamina terminalis, centered near the level of the midbrain cranial margin. Anatomically, this location corresponds to the anterior and tuberalis regions of the periventricular hypothalamus. An abnormal parenchymal band connecting the medial margins of the left and right hypothalami across the third ventricle.