Lakatos et al. presented the history of a 80-year-old man with an intra- and parasellar pituitary tumor (21  ×  12 mm in size) and marked hyperprolactinemia mainly due to macroprolactinemia (PRL total 514 ng/mL; MPRL 436 ng/mL; recovery 15,2%). Here, PRL is linked to hyperprolactinemia.