ISSN : 2146-3123
E-ISSN : 2146-3131

Hyoid Bone and Thyroid Cartilage Metastases from Sigmoid Colon Adenocarcinoma: A Case Report
Djurdja Bracanovic 1, Vesna Vukovic 2, Aleksa Janovic 1, Davorin Radosavljevic 3, Zoran Rakocevic 1
1Department of Radiology, Belgrade University School of Dentistry, Belgrade, Serbia
2Clinic of Diagnostic Imaging, Serbia Radiology and Oncology Institute, Belgrade, Serbia
3Clinic for Medical Oncology, Serbia Radiology and Oncology Institute, Belgrade, Serbia
DOI : 10.4274/balkanmedj.2015.1817
Pages : 278-280

Background: Secondary tumours of the hyoid bone and thyroid cartilage are extremely rare. In this paper, we present a case of the hyoid bone and thyroid cartilage metastases in a patient treated for sigmoid colon adenocarcinoma.
Case Report: Four years after sigmoid colon adenocarcinoma was diagnosed and treated with surgery and chemotherapy, the patient developed bone metastases in the left sacroiliac joint and right proximal humerus. Although the patient did not complain of any related symptoms, in a bone scintigraphy the accumulation of Technetium-99m was incidentally detected in the two sites of the anterior neck. On ultrasound examination there were two hyperechoic and heterogeneous masses with calcifications placed in front of the hyoid bone and thyroid cartilage. Computerized tomography demonstrated massive hyoid bone and thyroid cartilage destruction.
Conclusion: In patients with progressive sigmoid colon adenocarcinoma, destruction of the hyoid bone and thyroid cartilage could be suspected for metastases.

Keywords : Hyoid bone, thyroid cartilage, adenocarcinoma metastases, computerized tomography, bone scintigraphy

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