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Inflammatory reaction to foreign body (amalgam) in the maxillary sinus misdiagnosed as an ethmoid tumor

D Macan^*,1, T abov², P Kobler³ and Bumber⁴

¹ Department of Maxillofacial and Oral Surgery, University Hospital Dubrava, School of Dental Medicine, University of Zagreb, Croatia; ² Department of Oral and Maxillofacial Surgery, School of Medicine, Division of Dental Medicine, University of Rijeka, Croatia; ³ Department of Oral Surgery, Clinical Hospital Center Zagreb, School of Dental Medicine, University of Zagreb, Croatia; ⁴ Department of Ear, Nose and Throat, Clinical Hospital Center Zagreb, School of Medicine, University of Zagreb, Croatia

*Correspondence to: Prof.dr.sc. Darko Macan, Department of Maxillofacial and Oral Surgery, University Hospital Dubrava, Avenija Gojka Suska 6, 10000 Zagreb, Croatia; Email: darkom{at}kbd.hr

Received 22 July 2005; revised 13 October 2005; accepted 30 October 2005

A patient with chronic unilateral maxillary sinusitis caused by a foreign body (dental amalgam) and mistaken diagnosis of extensive ethmoid neoplasm is presented. The imitation of tumour symptoms was due to a long presence of foreign body in the maxillary sinus and chronic inflammation of maxillary, ethmoid and sphenoid sinuses.

Keywords: foreign body; dental amalgam; maxillary antrum; ethmoid sinus