Our data reveal that breath malodour is mainly of oral origin and that patients with pseudo-halitosis are frequently not diagnosed correctly by doctors, resulting in a considerable amount of over-treatment.

Neural tissue-derived facial nerve tumours usually present as neurinomas. We describe the extremely rare occurrence of a histologically verified neurofibroma primarily arising in the mastoid segment of the facial canal in a patient not fulfilling diagnostic criteria for neurofibromatosis. The tumour showed evidence of perineural growth into the jugular foramen, as suggested by cross-sectional imaging and intraoperative findings.

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Due to the length and the narrowing of the sinus draining passage, mucoceles are typically located within the frontal sinus. This case report describes the pathology of a patient with bilateral formation of pyoceles of the frontal sinus without the history of trauma, sinus operation or nasal pathology. The patient visited an ophthalmologist and reported a slowly increasing visual loss and protrusion of the left bulbus in the course of one year. Coronal CT scan showed bilateral soft tissue densities within the frontal sinus with arrosion of the floor on the left side. Extranasal frontal sinus surgery with ethmoidectomy (Ritter-Jansen and Uffenorde mucosal plasty) was performed. Intraoperative view demonstrated bony defects of the floor and the posterior wall of the frontal sinus.