Cooper P H, McAllister H A, Helwig E B
Am J Surg Pathol. 1979 Jun;3(3):221-8. doi: 10.1097/00000478-197906000-00004.
A series of 18 intravenous pyogenic granulomas (IVPG) was studied. The lesions were limited to the neck and upper extremity and appeared as nonspecific tumors. Most had a clinical duration of 2 months or less. Treatment was by excision and there were no recurrences. IVPG consists of an intraluminal polyp attached to the wall of the vein by a fibrovascular stalk. The characteristic appearance is of lobules of capillaries separated by a fibromyxoid stroma. The organization and histologic detail are similar to those of pyogenic granulomas that are uncomplicated by the changes of inflammation. Our observations suggest that IVPG develops in or adjacent to the wall of the involved vein. It probably receives its blood supply from a small artery that enters the lesion in the region of the stalk.
对一系列18例静脉化脓性肉芽肿（IVPG）进行了研究。病变局限于颈部和上肢，表现为非特异性肿瘤。大多数病例的临床病程为2个月或更短。治疗方法为切除，无复发。IVPG由通过纤维血管蒂附着于静脉壁的腔内息肉组成。其特征性表现是由纤维黏液样基质分隔的毛细血管小叶。组织结构和组织学细节与未合并炎症改变的化脓性肉芽肿相似。我们的观察表明，IVPG在受累静脉壁内或其附近发生。它可能从进入蒂部区域病变的小动脉获得血液供应。
