Myoblastoma of the Larynx

Abstract

Myoblastoma of the larynx is a benign, rare tumour. Previously, only 32 cases have been described. An account is given here of a 9-year-old boy with a myoblastoma of the left half of the larynx, where the only symptom was slight hoarseness. By means of indirect laryngoscopy an elevation of the left arytenoid region was visible together with a reduced mobility of the left vocal cord. An attempt was made to excise the tumour through laryngofissure, but, on account of the tumorous remnants and continued constriction of the larynx, total laryngectomy had to be performed. Macro-scopically, the tumour was radically excised, but histologic investigations showed that tumorous stripes are present in one of the edges towards the oesophagus. Two years after the operation the boy is in good condition and no increase in the tumour has been observed.