乳腺叶状肿瘤
------ Gottfried W, et al. Surg, 2002,132:106-107
Giant (juvenile) fibroadenoma A giant or juvenile fibroadenoma is larger
than 5 cm in diameter and sometimes doubles in size within 3 to 6 months,
-----近年来国外有些作者将纤维腺瘤分为成人型和幼年型,前者指常见的纤维腺瘤
后者过去归在良性叶状囊肉瘤内巨纤维腺瘤、富于细胞的纤维腺瘤内,
约占纤维腺瘤的4%。
好发于女青少年
往往发生在月经来潮后1-3年
光镜下组织学图像类似成人型纤维腺瘤
上皮增生更明显,上皮细胞可增生成4-8层,可见桥状和小的乳头状增生,偶
瘤,与大小有关,称为巨大纤维腺瘤,有与富于细胞相关名
称时为胎儿型或富于细胞性纤维瘤。
--------当富于细胞型,主要以上皮细胞增生为主并特别明显时,
也可诊断为纤维腺瘤伴上皮非典型增生。当间质细胞增生非
常明显时,可诊断为纤维腺瘤富于间质细胞。
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Stephen.S.Sternberg -------Diagnosis Surgical Pathology (2003)
-------幼年型纤维腺瘤(Juvenile Fibroadenoma) 一般用于一种变型:生长快,并可导致乳腺变形。虽 名为幼年型,但也可以见于成年女性。可见间质和上 皮均有增生,前者间质细胞丰富。后者则为上皮增生, 常呈簇状突起,类似于男性乳腺发育或少女型乳腺肥 大的增生特征。
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20--年轻人发生的肿瘤体积大、富于细胞的纤维腺瘤,这
种类型较为特殊,倾向于发生在青春期女孩(常见于黑人,
有时累及双侧乳腺),肿瘤可达到很大体积(10cm以上),
腺体和/或间质细胞丰富。以上表现为单独出现,但是它们
之间有明显的相关性,这种病变有多种名称,如少年纤维腺
youth and peaks in incidence in late adolescence. It tends to be more
common than the smaller version in the young adolescent, and its
up to 15 or 20 cm; it may compress or replace normal breast tissue. It is
less common than a normal fibroadenoma; however, like a typical
fibroadenoma, the giant variant is more common in African-American
乳腺幼年型纤维腺瘤与 叶状肿瘤的病理学
广州军区总医院病理科 王 炜 Ph.D
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乳腺纤维上皮性肿瘤
FA
PT
AFA GFA ?
JFA
良PT
交界PT
恶PT
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概念
1.幼年型纤维腺瘤 2.叶状肿瘤
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WHO 2003版 阿克曼第八版 Stephen.S.Sternberg------- Differentiatial Diagnosis In Surgical Pathology(2003) 付 丽------乳腺肿瘤病理学(2008版) 陈忠年------外科病理学(1997版) 文 献------
尔可见细胞核的轻度不典型性
但间质细胞丰富,间质可呈灶性或弥漫性增生
可有核的多形性,30-40%的病例可找到核分裂(<3个/10高倍镜视野)
间质细胞可有胶原变性,粘液变性罕见
2020/6/29 Millis等建议不要用巨纤维腺瘤的名称,以免混淆
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文献:
Juvenile fibroadenoma is usually a painless, solitary, and unilateral mass larger than 5cm and can double in size in 3 to 6 months, reaching 15 to 20 cm in diamenter, stretching the skin, and distorting the nipple. Age at presentation is between 10 to 18 years, and the disease is more common in the black population.
Gottfried W. Surg, 2002,132:106-107.
Donald E. Prim Care Clin Office Pract.2006,33: 455–502
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WHO 2003版
---------Juvenile (or cellular)fibroadenomas are characterized by increased stromal celluarity and epithelial hyperplasia. The term giant FA has been used as a synonym for juvenile fibroadenoma by some, but is restricted to massive fibroadenomas with usual histology by others.
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付丽--------乳腺肿瘤病理学(2008版)
幼年性纤维腺瘤的特征是间质细胞丰富, 并伴导管上皮增生。一些学者认为巨大纤维腺 瘤是幼年性纤维腺瘤的同义词,但是其他学者 认为巨大纤维腺瘤指具有正常组织学特征的巨 大纤维腺瘤。
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陈忠年----外科病理学(1997版)
巨大纤维腺瘤是基本结构与管内型纤维腺瘤相似,只是瘤体较大,其直径大于7cm, 切面显示有许多交错排列的裂隙,似乎将肿瘤分割成多个小叶,光镜下见纤维组织增生活 跃,挤压扩张的腺腔成为较长的裂隙,腔面呈乳头状突起,局部切除后很少复发。