Journal
ACTA CYTOLOGICA
Volume 52, Issue 2, Pages 211-214Publisher
KARGER
DOI: 10.1159/000325483
Keywords
aspiration biopsy; fine-needle; carcinoma; thyroid; cyst; goiter; needle tract seeding; sinus; cutaneous; ultrasound
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Background Fine needle aspiration biopsy (FNAB) of the thyroid is a simple and safe investigation. Dissemination of malignant cells during FNA for papillary thyroid carcinoma is extremely uncommon. Case We report a 49-year-old woman who presented with a multicystic goiter and palpable cervical lymph nodes. Three sessions of FNAB (a total of 12 needle passes) from a complex cyst overlying the thyroid isthmus using a 22-gauge needle failed to reveal malignant cells. Following the FNAs she developed a persistent discharging sinus at the needle insertion site. Exploration of the neck and histopathologic examination confirmed a well-differentiated papillary thyroid carcinoma infiltrating the skin avid strap muscles at a Single focus. Debulking surgery with adjuvant radiotherapy bad a satisfactory outcome in our Patient. Conclusion Skin sinus formation might have been prevented in our case by using a needle with a caliber < 22 gauge and avoiding multiple sessions of aspiration of the same thyroid nodule.
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