far lateral at tuberal levels and then in and around the parasubthalamic nucleus

A moderate number of PHAL-labeled axons from the BSTju course medial to the substantia innominata to enter the lateral hypothalamic area, and some may enter the lateral hypothalamic area from the substantia innominata itself (Fig. 4I). These fibers travel caudally through the most lateral part of the lateral hypothalamic area, and display a small number of branches and boutons, especially in tuberal levels and in a caudolateral part of the lateral hypothalamic area that may correspond to the parasubthalamic nucleus illustrated by Wang and Zhang [71] (Fig. 4L-N).