[The inclusion of Theodor Kocher in the work of the Trieste surgeon Gustavo Usiglio on thyroid gland tumors (1894)].

Gustavo Usiglio (1855-1933), a pupil of Billroth, was a surgeon of high qualities. The present author analyzes his main scientific work "On the tumours of the thyroid and their cure"; the book, which deals essentially with goitre, was published in 1894 at Milan and, in a 2nd edition, in 1895 at Trieste. Especially in the final chapter on therapeutics, Usiglio reveals himself as a fervent follower of Kocher.