[Egg shell calcification of the substernal goitre].

Seventy one years old woman admitted to our clinic with the complaints of fever, cough and palpitation. Physical examination revealed a palpable thyroid with a 2 cm in length in its isthmus and large right lobe. Kyphotic patient was tachycardic. Other systems were within normal limits. Chest x-ray performed wide upper mediastinum with calcified nodule approximately 3.5 cm in dimension in the apex of the left lung. Computed tomography revealed thyroid gland lying through the upper mediastinum and a mass 3.5 x 3.2 cm in dimension in the left lobe inferior regio of the gland surrounded with calcification. Thyroid function tests showed hyperthyroidism. Clinically patient had a substernal multinodular goitre. Since the lesion demonstrating egg shell calcification at the apex of left lung in the chest roentgenogram belonged to substernal goitre, the case was accepted interesting and presented below.