图片: | |
---|---|
名称: | |
描述: | |
1.病史:孕4月,卵巢肿块。
2.大体:肿块大小2x1.3x1.1cm,灰白黄色。
3.组织学:细胞为多边形或不规则形,构成内分泌样结构。胞浆丰富、淡染或有的比较透明,核异型性不明显。在高倍下,细胞学形态有的类似于黄素化的间质细胞,有的像肾上腺皮质细胞,有的酷似黄体细胞。多数细胞排成密集的腺巢状;有的呈梁状或条索状,局部间质粘液样水肿。
4.诊断:妊娠黄体瘤。结合病史,这一诊断的可能性最大。
5.鉴别诊断:性索-间质肿瘤(支持细胞-间质细胞肿瘤),主要鉴别 Leydig cell tumor(支持细胞瘤)。
妊娠性黄体瘤实际上是增生性病变(瘤样病变),而非真正的肿瘤
请见下文卵巢妊娠黄体瘤伴有颗粒细胞增生---酷似卵巢(恶性)肿瘤的描述,
Pathol Res Pract. 1999;195(12):859-63.
Piana S, Nogales FF, Corrado S, Cardinale L, Gusolfino D, Rivasi F.
Department of Morphological Sciences and Forensic Medicine, University of Modena and Reggio Emilia, Italy.
A pregnancy luteoma (PL) was incidentally found at a term cesarean section in a 27-year-old black woman without any endocrine abnormality. The lesion involved only the left ovary; it had a nodular and focal pseudoalveolar growth pattern and was associated with areas of tubular sertoliform component, consistent with granulosa cell proliferation. Immunohistochemistry revealed a diffuse positivity to Inhibin A, CD99, cytokeratin and vimentin. The ultrastructure was typical of steroid-producing cells. PL is a tumor-like lesion arising in pregnant women and often misdiagnosed as a neoplastic lesion; awareness of this rare entity and its differential diagnoses may avoid unnecessary surgery in young patients.