[Invasion of thyroid gland tumors in the larynx and trachea]

Intraluminal involvement of larynx or trachea in thyroid cancer causes extraordinary therapeutical problems. Surgical or medical treatment fails in most of these advanced tumours. Only carcinomas of low-grade malignancy--especially follicular and papillary type--can be cured by operation if involved parts of larynx or trachea are resected with the tumour. Surveying 85 cases reported in literature and 9 observations of our own we present the clinical, diagnostical and therapeutical aspects of this disease.