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. 2016:28:241-245.
doi: 10.1016/j.ijscr.2016.09.043. Epub 2016 Sep 29.

Papillary carcinoma of hyoid

Javier López-Gómez  1 , Ma Alejandra Salazar-Álvarez  2 , Martin Granados-Garcia  3
Affiliations

Papillary carcinoma of hyoid

Javier López-Gómez et al. Int J Surg Case Rep. 2016.

Abstract

Introduction: Thyroglosal duct cyst is a common anomaly with an incidence of 7% in adults, the rate of carcinoma in TGDC is 0.7-1.6%, and are extremely rare those originated in the hyoid bone.

Presentation of case: A 60 years old male patient, had a hard mass in the anterior neck. CT revealed a hyoid tumor. Hyoid bone resection was performed, the pathological report show a conventional papillary carcinoma in bone tissue. We rule out primary tumor in thyroid gland. Five years later, he developed a neck node recurrence. Total thyroidectomy and a selective left neck dissection (II-IV levels) was performed. He received radioiodine adjuvant treatment.

Discussion: Hyoid cancer originates of a persistent thyroglosal duct remnants inside hyoid bone.

Conclusion: We propose to add a new subdivision to pathology derived from thyroglosal duct remnants). The diagnostic approach with ultrasound and CT are necessary. A primary in te hyoid gland mustang be discorded, and then the entire hyoid bone must be removed. Treatment of the thyroid gland and neck should be considered when there are significant risk factors of recurrence, similarly to thyroid cancer based on the risk assessment.

Keywords: Hyoid cancer; Papillary carcinoma of hyoid; Papillary hyoid cancer.

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Figures

Fig. 1
Fig. 1
CT scan. Large solid mass at the level of hyoid bone.
Fig. 2
Fig. 2
CT scan. Thyroid cartilage extension.
Fig. 3
Fig. 3
Pathological report. Hyoid bone resection.
Fig. 4
Fig. 4
Pathological report. Hematoxylin and eosin staining, was observed a malignancy forming papillae and follicles.
Fig. 5
Fig. 5
Pathological report. Papillary carcinoma with bone infiltration and vascular permeation.
Fig. 6
Fig. 6
Neck ultrasound. Lymph nodes with heterogenous echotexture, mixed (central/peripheral) blood vessels, located in left cervical levels IIA, IIB, III and IV.
Fig. 7
Fig. 7
Pathological evaluation. Total thyroidectomy and left neck dissection of levels II–IV. Thyroid gland without macroscopic tumor.
Fig. 8
Fig. 8
Pathological evaluation. Total thyroidectomy and left neck dissection of levels II–IV. Thyroid gland with multinodular goiter.
Fig. 9
Fig. 9
Pathological evaluation. Total thyroidectomy and left neck dissection of levels II–IV. Lymph nodes with metastasis of papillary carcinoma.
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