Computed Tomography in Localization of Spinal Osteoid Osteoma

Osteoid Osteomas and Osteoblastomas of the Occipitocervical Junction

“…4 -6,8 -11 The location at the occipitocervical junction level is rare and published mainly as case reports. [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] Nowadays, several techniques such as radiofrequency coagulation or percutaneous biopsy have been successfully used in many bone structures to treat osteoid osteomas and control the symptoms. 6,45,46 Nevertheless, these techniques have never been applied up until now at the occipitocervical junction because of the vicinity of the vertebral artery, which could be damaged by a needle, even under CT control.…”

“…4 -11 The location in the cervical spine is unusual, and the location at the occipitocervical junction is rare. [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] We described 7 cases of osteoid osteomas and osteoblastomas of the occipitocervical junction, and detailed our surgical strategies and results.…”

Osteoid Osteoma of the Atlas in a Boy: Clinical and Imaging Features–A Case Report and Review of the Literature

“…5 According to the literature, torticollis is the main symptom for lesions located in the cervical segment, as in our case. 6,7 CT is the best modality to identify spinal OO: it can easily identify the nidus, as a well-defined area of low attenuation, with or without a variable amount of internal high density that represents the osteoid component of the nidus. 7,8 Compared with CT, MRI has limited value in demonstrating the nidus, but it is able to depict changes of the host bone and surrounding tissues.…”

“…6,7 CT is the best modality to identify spinal OO: it can easily identify the nidus, as a well-defined area of low attenuation, with or without a variable amount of internal high density that represents the osteoid component of the nidus. 7,8 Compared with CT, MRI has limited value in demonstrating the nidus, but it is able to depict changes of the host bone and surrounding tissues. 9,10 To date, there are only seven cases of OO involving the atlas in the previous literature, and none of them was accompanied with abnormal soft tissue reaction, as described in our case (►Table 1).…”

Intraoperative radioactive localization of small bone tumours

“…1 a) [6,17,26]. Roentgenographic techniques with conventional plain tomography [6,17,25,28] and computed tomography [6,13,14,17,20,27] have traditionally been used to delineate the precise anatomical location of these tumours ( Fig. 1 b).…”