肾上腺海绵状血管瘤的CT表现

CT Findingsof Adrenal Cavernous Hemangioma

目的探讨肾上腺海绵状血管瘤(ACH)的CT表现。方法回顾性分析经病理证实的8例ACH患者的影像资料。结果8例病灶均为单侧单发、边界清楚的类圆形肿块,最大径1.2~10.9cm,实质区CT值21~43HU;其中4例可见点片状钙化。4例囊实性肿块,体积较大(最大径线3.8~6.2cm),密度不均,增强扫描呈填充式强化;3例实性肿块,体积较小(最大径线1.2~2.5cm),非钙化区持续轻度强化;1例囊性肿块,囊壁局部残存较厚且持续轻度强化。结论ACHCT多表现为单发囊实性或实性肿块,病灶钙化常见,实质区密度较高(CT值≥21HU),增强扫描呈填充式强化或持续轻度强化;少数囊性肿块可见残存囊壁且持续轻度强化。认识这些征象有助于做出提示性诊断。

Objective To investigate the CT findings of adrenal cavernous hemangioma. Methods The imaging dataof 8 patients with adrenal cavernous hemangioma confirmed by pathology were analyzed retrospectively. Results 8 casesof lesions were a circular mass with unilateral single,clear boundary,the largest diameter from 1. 2 to 10. 9 cm and CT valuefrom 21 to 43 HU; 4 cases in 8 show dotted-flake calcification; 4 cases with cystic-solid density and larger volume showedsignificantly filling type contrast enhancement on enhanced scan. 3 cases with solid density and smaller size showed continu-ously mild enhancement ofthe non-calcified area by contrast enhanced CT scan. 1 case was larger cystic mass which showedcontinuously mild enhancement of remnant cyst wall. Conclusion Adrenal cavernous hemangioma are Single cystic-solidor solid Lesions,with much more calcification and higher soft-tissue density( CT vaule≥21 HU) ,andshowed filling typecontrast enhancement or continuously mild enhancement on enhanced scan; Mildly enhanced remnant cyst wall can be seenon the few cystic lesions. To strengthen understanding these signs is helpful for correct diagnosis.