This paper reports five cases of aberrant cochlear implant electrode array insertion into the vestibular labyrinth. A review of the literature was conducted in order to clarify reasonable preventive and detection strategies and endorse the routine use of intra-operative plain skull X-ray.

The study entailed a clinical case series and literature review. The setting was a tertiary academic referral centre. The following data were evaluated: pre-operative temporal bone computed tomography, operative reports, intra-operative imaging, neural response telemetry/imaging and post-operative imaging.

There were no consistent pre-operative risk factors found on computed tomography scans and no reliable intra-operative signs of electrode array misdirection. All misdirections in our case series, and those in the literature, were easily detectable on intra-operative plain film X-ray.

These reported cases demonstrate implant misdirection without the surgeon's awareness. Aberrant insertion cannot be anticipated, and neural response telemetry/imaging is not a reliable indicator of misdirection. Routine intra-operative anteroposterior plain X-ray of the head is a reliable indicator of misdirection, and is fast and relatively inexpensive.

To report three cases illustrating that it is not unusual for a primary eyelid tumour to metastasise to the parotid gland and vice versa.

Two patients with malignant parotid tumours underwent radical parotidectomy and presented subsequently with eyelid lesions. Biopsy showed that both eyelid lesions were histologically similar to the primary parotid tumour. A third patient was noted to have ipsilateral upper eyelid and parotid gland tumours. Histology and immunocytochemistry were used to differentiate the primary tumour and the metastasis.

These cases illustrate that tumours involving eyelids and parotid glands can present simultaneously or sequentially, and either of these structures could be the focus of primary or metastatic tumour. The important message for oculoplastic and parotid surgeons is to routinely assess both the periocular and parotid area when patients present with a mass in either structure.

Spinal anaesthesia is one of the most widely used regional anaesthesia techniques. Sudden bilateral hearing loss following spinal anaesthesia has only been reported in a few cases.

This paper reports the case of a 50-year-old woman who developed sudden bilateral hearing loss following spinal anaesthesia for hallux valgus orthopaedic surgery. This is followed by a literature review.

The patient's hearing improved almost completely on the morning of the 3rd day following surgery. No recurrence of hearing loss, tinnitus or vertigo was reported during the six-month follow-up period.

Some complications regarding hearing may emerge after spinal anaesthesia. The possibility of hearing loss after spinal anaesthesia should be taken into consideration. Complaints such as hearing loss, tinnitus or vertigo should be taken seriously when reported, and the patient should be referred to an ENT clinic. This will ensure early diagnosis and treatment.

Pregnancy-associated pyogenic granuloma (pregnancy tumour) is not uncommon. However, control of severe bleeding associated with the lesion by transarterial embolisation has never been reported.

We report the case of a 33-year-old pregnant woman (34 weeks gestation) who presented with a pregnancy-associated pyogenic granuloma of the mandibular gingiva with a life-threatening haemorrhage. The bleeding stopped soon after transarterial micro-embolisation and regressed after one month; thus, no further surgical excision was needed. The patient was free of post-operative wound pain and infection, and there was no recurrence after one year of follow up.

In general, surgical excision is the first treatment choice for pregnancy tumours. However, it is limited by the risk of marked deformity or incomplete excision when large lesions or difficult surgical areas are encountered. For large tumours, transarterial embolisation may be a safer alternative.

To report magnetic resonance imaging findings in a patient with an SLC26A4 gene mutation who had low-frequency sensorineural hearing loss.

A 13-year-old girl had bilateral and symmetric low-frequency sensorineural hearing loss. Upon genetic testing, a heterozygous c.1105A > G (p.K369E) mutation of the SLC26A4 gene was detected. Mild endolymphatic hydrops in the right cochlea and marked endolymphatic hydrops in the left vestibulum were seen by magnetic resonance imaging 4 hours after an intravenous gadolinium injection.

This is the first reported case of a patient with the SLC26A4 gene mutation c.1105A > G (p.K369E) who had low-frequency sensorineural hearing loss. Co-occurrence of cochlear and vestibular endolymphatic hydrops suggests an association with that pathology.

This report describes the clinical presentation and management of a rare case of herpes simplex virus infection in the larynx of a patient treated with methotrexate.

We report a case of a clinically suspicious laryngeal lesion in an 82-year-old woman who started methotrexate treatment for rheumatoid arthritis. Shortly afterwards she developed dysphonia, which worsened over four months. On microlaryngoscopy, there was bilateral erythema and ulceration of the vocal folds. No other mucocutaneous lesions or systemic features were present. Biopsies revealed herpes simplex virus infection of the vocal folds; there was complete resolution with oral aciclovir. A brief literature review for this rare entity is presented and the diagnostic challenges arising from under-recognition of atypical presentations are discussed.

To our knowledge, this is the first report of a rare complication of herpes simplex virus infection in the context of methotrexate-induced immunosuppression. It may present therapeutic challenges for conditions which rely on immunosuppressive treatments.

Adenosquamous carcinoma is a rare variant of semicircular canal that can affect various regions, including the head and neck. Adenosquamous carcinoma is characterised pathologically by the simultaneous presence of distinct areas of semicircular canal and adenocarcinoma, and usually takes an aggressive course with local recurrences, early lymph node metastases and distant disseminations.

We report a rare case of neck adenosquamous carcinoma of unknown primary origin, which was well-controlled by thorough resection without any other additional therapy.

We discuss the diagnosis and treatment of adenosquamous carcinoma along with a review of pertinent literature. We also consider the potential differential diagnosis of branchiogenic carcinoma.

This study aimed to identify the pattern of post-operative drainage following partial superficial parotidectomy with and without the use of a bipolar vessel-sealing device.

Of the 49 patients undergoing parotidectomies, a bipolar vessel-sealing device was used for 20. Predictive factors included in the analysis were age, sex, body weight, operating time, tumour pathology, and diabetes mellitus, hypertension and smoking status.

In multivariate analyses, body weight (p = 0.026) and non-use of a bipolar vessel-sealing device (p = 0.009) were significantly associated with increased post-operative drainage after 24 hours. There was also a trend towards increased drainage in diabetic patients. Operating times were significantly shorter in the bipolar vessel-sealing device group.

Although 24-hour drainage appears adequate for most patients, in obese and diabetic individuals there is a risk of requiring increased drainage. Therefore, the drain should be left in place for a longer period. The bipolar vessel-sealing device is safe and time-efficient, and decreases the post-operative drainage period.

This paper, a report by the Clinical Governance and Audit Committee of the Scottish Otolaryngological Society, presents a consensus view of the minimal requirements for ENT clinics in National Health Service hospitals.

The provision of adequate equipment and staff has gained increasing importance as the vast majority of ENT procedures can be safely performed in the out-patient or office setting.

This paper describes a case where a patient diagnosed with tongue base lymphoid hyperplasia was successfully treated with radiofrequency excision and interstitial radiofrequency-induced thermotherapy.

A 53-year-old female presented with globus sensation, mild dysphagia, nocturnal breathing problems and ‘hot potato voice’ dysphonia. On flexible nasendoscopy, a visible tongue mass was seen to obstruct the posterior oropharynx. On magnetic resonance imaging scans, this mass looked suspicious of lymphoma, but on histology was confirmed to be benign reactive lymphoid hyperplasia. Sleep study findings indicated moderate obstructive sleep apnoea, with an apnoea–hypopnoea index of 18.1 events per hour. She was treated with radiofrequency-induced thermotherapy on three separate occasions.

A post-operative sleep study showed a dramatic improvement in the patient's apnoea–hypopnoea index (3.8 events per hour). This correlated well with the improvement in her sleep quality and reduction of snoring. Over the follow-up period, there has been sustained resolution of dyspnoea, with almost total restoration of voice quality.

A large variety of techniques have been used for auricular haematoma management. The open surgical management of auricular haematoma involves incision, evacuation and the obliteration of dead space using biodegradable mattress sutures. Our goal was to describe open surgical management for primary, recurrent and spontaneous auricular haematoma.

Auricular haematoma patients who underwent open surgical management were prospectively audited (2010–2013). Information was collected on demographics, clinical presentation, aetiology, examination findings, previous interventions, details of open surgical management and post-operative follow up.

In all, 12 male and 3 female patients with a mean age of 33 years (range 16–86 years) were evaluated. Contact sport injury was the most common aetiology. Ten patients had undergone previous unsuccessful interventions to treat auricular haematoma before open surgical management was performed. All patients were managed successfully without significant recurrence. One patient had a minor local reaccumulation which required reinsertion of a mattress suture. One elderly patient developed localised cellulitis which responded well to antibiotics.

Open surgical management of auricular haematoma has been successful. The technique is simple and reliable, and can be accomplished in a clinical setting under local anaesthesia.

To report the occurrence of a concurrent oropharyngeal papilloma and branchial cleft cyst linked by p16INK4A and human papillomavirus immunohistochemistry.

A 42-year-old woman presented with a 1-month history of a left lateral neck mass. Contrast enhanced computed tomography showed a hypodense lesion 20 mm in diameter anteromedial to the left sternocleidomastoid muscle. Ultrasound-guided fine needle aspiration suggested a branchial cleft cyst. Panendoscopy was performed at the time of neck mass removal, and a papillomatous lesion was removed from the left hypopharynx. Histopathological analysis showed the neck lesion to be a branchial cyst containing lymphoid tissue, and the oral lesion to be a squamous papilloma. Immunohistochemical analysis showed both the branchial cleft cyst and papilloma to be positive for p16INK4A expression and human papillomavirus DNA.

Histological and immunohistochemical analyses support the cystic transformation of lymph nodes, or the ‘Inclusion Theory’, as the aetiology of branchial apparatus anomalies, and raise the possibility that human papillomavirus infection may play a much larger role in disease of the head and neck than previously supposed.