ABSTRACT
The plunging goiter consists in a goiter whose lower limit is not palpable in surgical position. To study the epidemiologic characteristics, the circumstances of discovery, the clinical signs, and the management of this disease. A retrospective study about 43 cases of plunging goiters operated during a period of 14 years in the ENT department of the hospital The Rabta Tunis. The average age of our patients was 59.3 years. On physical examination, goiter was palpable in 41 patients [95.3%]. The plunging character of the goiter was noted, at echography, in 26 patients. A cervico-thoracic scanner was performed in 41 patients [95.3%]. It helped to confirm the plunging goiter in all patients. These goiters were most frequently pre vascular [73.2%] compared to the innomined venous trunk. The lower limits of the intrathoracic extensions were on the level of the superior vena cava in 4 cases [9.7%], on the level of the left brachio-cephalic venous trunk in 16 cases [39%] and on the level of the aortic arch in 15 cases [36,5%]. The cervical incision was sufficient in 39 cases [97.5%] and we used a combined sternotomy in one patient [2.5%]. The plunging goiter is a thyroid tumour cervical originally descended, then developed, in the mediastinum. A good clinical examination and paraclinical can reach a definite diagnosis and to achieve better surgical