Karacalioglu A Ozgur, Soylu Kenan, Emer Ozdeş, Ayan Asli, Ozguven Mehmet
Department of Nuclear Medicine, Gulhane Military Medical Academy and School of Medicine, 06018-Etlik, Ankara, Turkey.
Hell J Nucl Med. 2008 Sep-Dec;11(3):175-8.
A 69 years old woman with chronic low back pain referred to our Department for bone scintigraphy. Patient did not have any other complaint and his physical examination of the patient was normal. Whole-body scan was acquired 3 h after the intravenous injection of 740 MBq of technetium-99m methylene diphosphonate ((99m)Tc-MDP). Distal sacrococcygeal region could not be observed during the visual analysis of the whole-body scan. Pelvic X-rays radiography and pelvic computed tomography of the patient, demonstrated hemiagenesis of the sacrum, which was consistent with type-2 sacral agenesis. Other structural abnormalities were not detected on the pelvic CT scan of the patient. This case is presented to demonstrate the rare congenital anomaly of sacral hemiagenesis causing empty pelvis appearance in the posterior projection of (99m)Tc-MDP whole body bone scan. This congenital anomaly could be associated with extensive abnormalities of the lower vertebrae, pelvis, and spine.
一名69岁慢性腰痛女性转诊至我科进行骨闪烁显像检查。患者无其他不适主诉，体格检查正常。静脉注射740MBq的锝-99m亚甲基二膦酸盐（（99m）Tc-MDP）3小时后进行全身扫描。在全身扫描的视觉分析过程中，未观察到骶尾骨远端区域。患者的骨盆X线摄影和骨盆计算机断层扫描显示骶骨半发育不全，符合2型骶骨发育不全。在患者的骨盆CT扫描上未检测到其他结构异常。展示该病例是为了说明骶骨半发育不全这种罕见的先天性异常在（99m）Tc-MDP全身骨扫描后位投影中导致盆腔空虚的表现。这种先天性异常可能与下椎骨、骨盆和脊柱的广泛异常有关。
