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After taking the clinical case examined as a starting point and supporting the data obtained with a literature analysis of the cancerous relapse of a parotid pleomorphic adenoma, the Authors suggested a suitable surgical operation (total parotidectomy with conservation of the facial nerve) in the treatment of parotid pleomorphic adenoma. Doing so, it is possible to avoid a relapse of neoplasm and a possible transformation into malignancy. Furthermore it might prevent the formation of parotid carcinoma.

The authors briefly describe the commonest forms of mitochondrial myopathies particularly those associated with disorders of ocular motility. They report their series of four patients suffering from ptosis of the eyelid caused by mitochondrial myopathies. The ptosis was corrected surgically in all cases by means of Müller's muscle adaptation technique. The authors discuss their results and the indication for this technique.