Non-Communicating Bronchial Cyst Presenting as Cystic Thyroi
A 41-year-old woman presented with a painless, smooth, hard in consistency 5 cm mass in the left anterior triangle of the neck. This was moving on swallowing and a provincial diagnosis of left thyroid mass was made. The rest of the history and clinical examination were insignificant. The thyroid function tests were within normal limits and the anti-TPO antibody (ANTI-M) was slightly raised. Thyroid ultrasonography showed a cystic lesion with heterogenic echogenicity involving the distal part of the left lobe of the thyroid. Isotope scan showed a cold nodule in the same area (Fig. 1) and it was followed by computed tomography imaging that confirmed the presence of a 5 × 6 cm smooth cystic lesion at the level of the lower part of left thyroid lobe. This was extending to the upper mediastinum causing deviation of the trachea to the right (Fig. 2)....