Uchiyama S, Suzuki T, Imai S, Nanbu K, Yokoyama T, Imura Y, Santô Y, Shioya T, Yano M
Department of Surgery, Tokyu Hospital, Japan.
Surg Today. 1997;27(3):257-60. doi: 10.1007/BF00941657.
A 35-year-old woman was referred to our hospital for investigation of lower abdominal pain and a feeling of fullness. At her first consultation, a transvaginal ultrasonography (US) revealed a homogeneous cystic mass in the lower abdomen. Over a period of 8 months the US findings of the content of this mass changed from fine and faint internal echoes to moderate amounts of irregularly contoured internal echoes. At laparotomy, the cystic mass, which measured 3.0 x 3.0 x 3.5 cm, appeared to arise in the sigmoid mesocolon and tightly adhered to the appendix. The cyst was unilocular and contained a slightly yellow gelatinous fluid. Microscopically, its wall was fibrous and lacked an epithelial lining, suggesting that it was a so-called pseudocyst arising from the sigmoid mesocolon. To our knowledge, this is the first case report documenting the time-course ultrasonographic observations of a mesenteric pseudocyst. Our findings suggest that the time-elapsed ultrasonographic changes might have been dependent on the interval between the onset of cystic formation and the US examination.
一名35岁女性因下腹部疼痛和饱胀感被转诊至我院。初次会诊时，经阴道超声检查发现下腹部有一均匀性囊性肿块。在8个月的时间里，该肿块内容物的超声检查结果从内部细小、微弱回声变为中等量不规则形态的内部回声。剖腹手术时，囊性肿块大小为3.0×3.0×3.5 cm，似乎起源于乙状结肠系膜，与阑尾紧密粘连。囊肿为单房性，内含微黄胶冻样液体。显微镜下，其壁为纤维性，无上皮衬里，提示为起源于乙状结肠系膜的所谓假性囊肿。据我们所知，这是第一例记录肠系膜假性囊肿超声检查时间进程观察的病例报告。我们的研究结果表明，超声检查随时间的变化可能取决于囊肿形成开始至超声检查的间隔时间。
