Spanel-Borowski K
Cell Tissue Res. 1981;214(1):155-68. doi: 10.1007/BF00235153.
Morphologically, canine ovaries show two types of regression pattern in secondary follicles. In type A necrotic changes of the oocytes and the zona pellucida dominate, whereas in type B degeneration, necrobiosis and necrosis of the granulosa prevail. The atretic course of type B regression results in a pseudoantrum and leads, by pseudogrowth, to a structure imitating tertiary follicles. In both type A and type B regression, four consecutive stages of atresia are distinguished by light- and electron microscopy. True teritary follicles display only one regression pattern which resembles type B of secondary follicles. Early, advanced, late, and terminal stages of atresia are again described.
在形态学上，犬卵巢的次级卵泡呈现出两种退化模式。在A型中，卵母细胞和透明带的坏死变化占主导，而在B型退化中，颗粒细胞的变性、渐进性坏死和坏死更为普遍。B型退化的闭锁过程会导致假卵泡腔形成，并通过假生长形成模仿三级卵泡的结构。在A型和B型退化中，通过光学显微镜和电子显微镜可区分出四个连续的闭锁阶段。真正的三级卵泡仅呈现一种类似于次级卵泡B型的退化模式。文中再次描述了闭锁的早期、进展期、晚期和终末期。
