Recurrent well-differentiated liposarcoma of the larynx: a case report and review of literature.

We present a rare case of recurrent well-differentiated liposarcoma, which re-occurred 26 years after initial presentation, having presented non-acutely on both occasions with dyspnoea, progressive dysphonia and intermittent stridor due to a valve-like laryngeal obstruction happening mainly when supine. We have discussed management of these recurrent well-differentiated liposarcomas of the larynx including the adequacy of local versus radical treatment with review of literature which reveals that only nine cases have been reported so far.

Parotid pleomorphic adenoma with solitary renal metastasis.

We present a rare case of renal metastasis of a recurrent pleomorphic adenoma of the parotid gland in an elderly woman. Metastasising pleomorphic adenoma shows malignant clinical behaviour, and although it appears histologically benign, there may be unknown molecular features that determine its unusual ability to spread.