A second primary intestinal-type adenocarcinoma of the sinonasal tract induced by wood dust

Intestinal type adenocarcinoma of the sinonasal tract is associated with ex posure to wood dust. We report the case of an adenocarcinoma tumor of the l eft sinonasal area diagnosed in 1998. Nineteen years earlier (1979), an int estinal type adenocarcinoma of the right nasal cavity was diagnosed. The fi rst tumor was treated in 1979 surgically followed by postoperative radiothe rapy. The second tumor showed the same histological features as an intestin al type adenocarcinoma (papillary type). The patient had a history of a 10 year exposure to wood dust (furniture worker), and the latency time of this patient was 48 years in 1998. We suppose that the tumor of the left side i s a second primary intestinal type adenocarcinoma. This case indicates the usefulness of a lifelong follow up of patients with adenocarcinoma of the n ose because of the wide range of latency times of these tumors.