Naslov
Primary Papillary Thyroid Carcinoma as an Incidental Finding in Branchial Cleft Cyst

Autori
Šnajder, Darija ; Kizivat, Tomislav ; Mihaljević, Ivica

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, ostalo, znanstveni

Skup
Annual Congress of the European Association of Nuclear Medicine EANM'18

Mjesto i datum
Düsseldorf, Njemačka, 13.10.2018. - 17.10.2018

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
papillary thyroid cancer, branchial cleft cyst

Sažetak
Branchial cleft cysts are commonly occurring congenital anomalies in pediatric otorhinolaryngology, but papillary carcinomas arising from them are rare. Here we present a case of a 16-year-old girl, which was referred to surgery because of lateral neck mass on the right neck side, palpable in the last three months prior examination. There was no anamnestic history of neck irradiation or trauma. Neck ultrasound revealed a 2.9 cm mixed cystic and solid mass in the right lateral aspect of the neck, and fine needle aspiration cytology was suggestive of a cystic lesion, without neoplastic cells. Preoperatively, papillary carcinoma arising from a branchial cleft cyst was not in the differential diagnoses. After the patient underwent cyst excision, histopathologic examination of the 3.7 cm cystic mass demonstrated the presence of papillary thyroid carcinoma with randomly oriented papillae with ground glass nuclei associated in follicles and psammoma bodies present, and collapsed pseudocystic space partially lined with neoplastic tissue with psammoma bodies. There was no normal thyroid tissue adjacent to the focus of papillary carcinoma in the specimen. The non-neoplastic epithelium of the cyst was typical for branchial cleft cyst. Right to the cyst, a metastatic lymph node was found. Therefore, a total thyroidectomy with region VI neck dissection was followed, which found normal thyroid gland and lymph node tissue. On follow up neck ultrasound, metastatic cervical lymph nodes were found in region II and III on the right neck side, region I and region IIA on the left neck side. The neck dissection was followed by radioiodine treatment. In conclusion, the surgeon must be cautioned by the possibility of finding primary papillary carcinoma in the branchial cleft cyst.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

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