Kim Jang Hee, Seo Jung Seok, Lee Bong Woo, Lee Sang Young, Jeon Seok Hoon, Lee Kyi Beom
Department of Pathology, Ajou University School of Medicine, Suwon, Korea.
J Korean Med Sci. 2007 Sep;22 Suppl(Suppl):S61-5. doi: 10.3346/jkms.2007.22.S.S61.
To investigate the characteristics of incidental pituitary microadenomas, we examined 120 pituitary glands from Korean forensic autopsy cases, from which eight tumors were identified (incidence 6.7%). The average age of the affected subjects was 50 yr (range: 33-96 yr) with a female predominance. The maximum diameters of the tumors ranged from 0.4 to 5.4 mm (mean: 2.8 mm). Immunohistochemical analysis of pituitary hormones revealed three growth hormone-secreting adenomas, one prolactin-producing adenoma, one gonadotropin-producing adenoma, one plurihormonal adenoma, and two null cell adenomas. MIB-1 staining for Ki-67 antigen showed no positive expression. The microvessel density (MVD) of the pituitary microadenomas ranged from 2.3 to 11.6% (mean: 5.3%) and was significantly lower than that of nonneoplastic pituitary glands (11.9-20.1%, mean: 14.8%). Our study provides reference data on incidental pituitary microadenomas in the Korean population.
为研究垂体微腺瘤的特征,我们检查了120例韩国法医尸检病例的垂体,从中发现了8例肿瘤(发病率6.7%)。受影响受试者的平均年龄为50岁(范围:33 - 96岁),女性居多。肿瘤的最大直径为0.4至5.4毫米(平均:2.8毫米)。垂体激素的免疫组织化学分析显示,有3例生长激素分泌型腺瘤、1例催乳素分泌型腺瘤、1例促性腺激素分泌型腺瘤、1例多激素腺瘤和2例无功能细胞腺瘤。Ki-67抗原的MIB-1染色未显示阳性表达。垂体微腺瘤的微血管密度(MVD)为2.3%至11.6%(平均:5.3%),显著低于非肿瘤性垂体(11.9% - 20.1%,平均:14.8%)。我们的研究为韩国人群中偶然发现的垂体微腺瘤提供了参考数据。