parahypophysis

par·a·hy·poph·y·sis

(par'ă-hī-pof'i-sis),
A small mass of pituitary tissue, or tissue resembling in structure the anterior lobe of the hypophysis, occasionally found in the dura mater lining the sella turcica.

parahypophysis

(păr″ă-hī-pŏf′ĭ-sĭs) [″ + hypophysis, an undergrowth]
Accessory to the pituitary tissue.