Zárate Arturo, Saucedo Renata, Basurto Lourdes
Unidad de Investigación de Endocrinología, Centro Médico Nacional, Instituto Mexicano del Seguro Social, México.
Gac Med Mex. 2004 Sep-Oct;140(5):567-9.
The prolactinoma is the most frequent pituitary tumor; the clinical presentation in women is characterized by menstrual disorders, amenorrhea, galactorrhea and/or sterility; neurological symptoms are present only when the tumor exceeds the sella turcica which is exceptional. Prolactin levels over 100 ng/mL are usually diagnostic of prolactinoma, as long as there are no pregnancy and/or hypothyroidism. The first therapeutical option is dopamine agonist drugs, thus surgery has been practically eliminated. Dopaminergic drugs suppress both synthesis and prolactin secretion, which in turn restores the ovarian function and induces tumor shrinkage. In conclusion, dopamine agonists constitute the prolactinoma treatment; in addition drug withdrawal is followed by remission of prolactinoma activity. In men, the size of the prolactinoma is larger, macroprolactinoma which usually presents extrasellar extension accompanied of neurological and visual symptoms; however the prolactinoma exhibits a favorable response with dopaminergic drugs.
泌乳素瘤是最常见的垂体肿瘤;女性的临床表现以月经紊乱、闭经、溢乳和/或不育为特征;仅当肿瘤超出蝶鞍时才会出现神经症状,这种情况很罕见。只要没有怀孕和/或甲状腺功能减退,泌乳素水平超过100 ng/mL通常可诊断为泌乳素瘤。首选治疗方法是使用多巴胺激动剂药物,因此手术实际上已被淘汰。多巴胺能药物可抑制泌乳素的合成和分泌,进而恢复卵巢功能并促使肿瘤缩小。总之,多巴胺激动剂是泌乳素瘤的治疗方法;此外,停药后泌乳素瘤的活动会缓解。在男性中,泌乳素瘤的体积较大,通常为大泌乳素瘤,常伴有鞍外扩展并伴有神经和视觉症状;然而,泌乳素瘤对多巴胺能药物有良好反应。