Final answer:
The success rate of surgical therapy for prolactinomas is usually around 80-90% (option b).
Step-by-step explanation:
The success rate of surgical therapy for prolactinomas is usually around 80-90% (option b).
Prolactinomas are benign tumors of the pituitary gland that secrete excessive amounts of prolactin hormone. Surgical therapy, which involves removing the tumor through surgery, is one of the treatment options for prolactinomas. The surgery aims to reduce the size of the tumor and normalize prolactin levels.
Studies have shown that surgical therapy has a high success rate in treating prolactinomas, with a success rate of 80-90% in terms of tumor reduction and prolactin normalization.