Hyoid Bone and Thyroid Cartilage Metastases from Sigmoid Colon Adenocarcinoma: A Case Report

Year 2017, Volume: 34 Issue: 3, 278 - 280, 01.05.2017

Djurdja Bracanovic Vesna Vukovic Aleksa Janovic Davorin Radosavljevic Zoran Rakocevic

Abstract

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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