Neurological complications of acute mastoiditis are rare but can be life threatening. Their presentation may be masked by the use of antibiotics. We present a unique case of acute otitis media progressing to occipital, extradural and subdural abscess formation and lateral sinus thrombosis in a child. The clinical course and management of a pre-adolescent male is presented and discussed. We review the incidence, presentation and treatment of occipital abscesses and lateral sinus thrombosis with acute mastoiditis. Following extended cortical mastoidectomy, neck exploration and broad spectrum intravenous antibiotics, the patient made a full recovery. This is the first reported case of acute mastoiditis associated with occipital abscess in a child. Early, aggressive treatment is required for a successful outcome. The rarity of neurological complications, in addition to the insidious onset and subtle symptoms associated with antibiotic therapy, can make diagnosis extremely difficult. Patients with acute otitis media who fail to respond fully to treatment should be referred early for a specialist otology opinion.

Sigmoid sinus thrombosis (SST) usually follows acute as well as chronic otitis media with coalescent mastoiditis. A singular case of noncoalescent mastoiditis complicated with thrombosis of deep cerebral sinuses occurring in a young child is presented. A genetic thrombophilic disorder (prothrombin G20210A allele mutation) was identified as the predisposing factor for this unusual complication. Particular emphasis is placed on the course of the disease, which showed regression only after surgical exploration and additional anticoagulant therapy. We conclude that a thorough and early assessment of coagulation factors should always be performed, especially in the population at risk, in order to rule out unusual aetiologies of these rare but still life-threatening pathological processes.

Recanalization of the lateral sinus thrombosis is an expected outcome in patients who respond to treatment. We report a case of persistent lateral sinus thrombosis many years after treatment for peri-sinus infection.

Fusobacterium necrophorum is implicated as an aetiological agent in a variety of necrotic diseases, such as Lemièrre’s syndrome (LS) in humans. LS was initially described as septic thrombophlebitis of the internal jugular vein secondary to an acute oropharyngeal infection. Other primary sources of infection include parotitis, otitis media, sinusitis, odontogenic infection and m stoiditis. In the pre-antibiotic era LS carried a high mortality. This has been reduced as a result of the widespread use of antibiotics, butthere is still a definite morbidity and mortality associated with infection with this virulent organism. We report three cases of complicatedotitis media caused by Fusobacterium necrophorum. The patients were treated successively with intravenous metronidazole and surgery.

The management of four cases of lateral sinus thrombosis (LST) over a four-year period at the Royal Darwin Hospital is presented in this retrospective review. The patients were aboriginal and presented with otalgia, otorrhoea and sepsis. Two cases had an associated complication of an otitic hydrocephalus and a subperiosteal abscess. Cholesteatoma was found in three cases. Computed tomography (CT) scan confirmed the LST in three cases. Three patients were anaemic and thrombocytopenic. All patients had positive blood cultures. The organismswere predominantly mixed anaerobes and Bacteroides species. Three patients were managed surgically as a two-stage procedure. One patient was managed as a single-stage procedure with a modified radical mastoidectomy. Therapeutic anticoagulation was utilized in one case. There were no deaths. The prognosis of LST is good if treatment is instituted early with broad-spectrum intravenous antibiotics and surgery. Therole of clot removal at surgery and the use of anticoagulation are discussed in this paper.

A case of bilateral mastoiditis with subperiosteal abscesses complicating acute otitis media in a two and a half year old girl is presented. Contrast enhanced computerized tomography confirmed the diagnosis of right lateral sinus thrombosis. The aetiology, diagnosis and management of these conditions are discussed.