NEUROLOGICAL MANIFESTATIONS OF PROLACTINOMA (CASE REPORT).

This article describes a clinical case of prolactinoma, the onset of which was diagnosed after long-term use of eglonil, after the appearance of such side effects as galactorrhea. This clinical case is a unique one because of the peculiarities of diagnostic search. The first complaints of the patient were anxiety and fear, fatigue, frequent mood swings, memory disoders. She was examined by a family physician and prescribed eglonil (sulpiride) 200mg for 7 days. Because of the positive effect the patient decided on her own to continue treatment for another several weeks. But suddenly she revealed a leakage of milk from the mammary glands. The family physician assessed galactorrhea as a side effect of long-term use of eglonil, and cancelled this prescription. Simultaneously the family doctor canceled COCs, that the patient used for the last several years, because of pregnancy planning. But three months later the mensis didn't occur. The menstrual cycle did not resume and pregnancy did not occur even 6 months later. Thus the doctor started to perform complete examination of the patient. Unfortunately, during the diagnostic search the patient rejected to do the contrast and primarily was performed MRI without contrast. The doctor revealed abnormal prolactin level - 423 ng/ml (normal range <25 ng/ml). Finally MRI of the pitutary including dynamic contrast was done. It has demonstrated an 8 x 11 mm mass in pituitary gland. The patient was prescribed conservative treatment according to the protocol. As a result, subsequent monthly control laboratory tests of prolactin levels in blood indicated gradual decrease of its level. Thus the first symptoms of prolactinoma may be atypical and can be detected only by a detailed survey and observation of the patient. It is also known that the severity of symptoms depends on the size of prolactinomas. Large prolactinomas cause symptoms of central nervous system lesion: headaches, depression, anxiety, irritability, emotional instability but in our clinical case, the prolactinoma was small but manifests with severe symptoms of the central nervous system lesion (according to the results of HADScale and MoCA scale). The presence of concomitant pathology can mask or distort the symptoms of another disease that complicates the diagnosis. On the other hand, treatment of one of the comorbidities and improving its course leads to a reduction in the manifestations of the others.