Navy Medical Center, San Diego, California, U.S.A.
Ophthalmic Plast Reconstr Surg. 2013 Sep-Oct;29(5):e120-3. doi: 10.1097/IOP.0b013e318279fe0a.
A 49-year-old woman, who had fallen face first in a cactus 1 week earlier, presented with a small, mobile, noninflamed subcutaneous nodule at the rim of her right lateral orbit with no other functional deficits. A CT scan was obtained, which revealed a 4-cm intraorbital tubular-shaped foreign body resembling a large cactus spine. A second preoperative CT scan, obtained for an intraoperative guidance system, demonstrated a second cactus spine, which was initially not seen on the first CT scan. Both spines were removed surgically without complication. The authors discuss factors that can cause diagnosis delay, review the radiographic features of cactus spines, and discuss the often times benign clinical course of retained cactus spine foreign bodies. To the authors' knowledge, this is the first case report of cactus spines in the orbit. Health-care professionals should have a low threshold for imaging in cases of traumatic injuries involving cactus spines.
一位 49 岁的女性，1 周前脸朝下摔倒在仙人掌上，右侧侧眶缘有一个小的、可移动的、非炎症性的皮下结节，无其他功能缺失。进行了 CT 扫描，显示眶内呈管状的 4 厘米长的异物，类似于大仙人掌刺。为术中引导系统获取的第二次术前 CT 扫描显示，有第二根仙人掌刺，最初在第一次 CT 扫描中未发现。这两根刺都被成功地手术切除，没有并发症。作者讨论了可能导致诊断延迟的因素，回顾了仙人掌刺的影像学特征，并讨论了经常出现的良性保留仙人掌刺异物的临床过程。据作者所知，这是第一例眼眶内仙人掌刺的病例报告。涉及仙人掌刺的创伤性损伤，应降低影像学检查的门槛。
