Pins M R, Rosenthal D I, Springfield D S, Rosenberg A E
Department of Pathology, Massachusetts General Hospital, Boston 02114.
Arch Pathol Lab Med. 1993 Mar;117(3):259-63.
Papillary endothelial hyperplasia (also known as Masson's pseudoangiosarcoma) is a hyperplastic proliferation of endothelial cells that is usually an incidental finding within thrombosed dilated blood vessels or vascular tumors. Rare extravascular forms occur and can histologically closely mimic angiosarcoma. We report a case of extravascular papillary endothelial hyperplasia that extensively involved a large, traumatic, deep soft-tissue hematoma in a 19-year-old man and clinically presented as a soft-tissue sarcoma. We also summarize characteristics of 314 cases of papillary endothelial hyperplasia reported in the literature and identify 13 likely cases of the rare extravascular form.
乳头状内皮增生（也称为马松假性血管肉瘤）是内皮细胞的增生性增殖，通常是在血栓形成的扩张血管或血管肿瘤中偶然发现。罕见的血管外形式也会出现，并且在组织学上可与血管肉瘤极为相似。我们报告了一例血管外乳头状内皮增生病例，该病例广泛累及一名19岁男性的巨大创伤性深部软组织血肿，临床上表现为软组织肉瘤。我们还总结了文献中报道的314例乳头状内皮增生的特征，并识别出13例可能为罕见血管外形式的病例。
