To review reports of adenoid cystic carcinomas arising in the head and neck area outside of the major salivary glands, in order to enhance the care of patients with these unusual neoplasms.

An international team of head and neck surgeons, pathologists, oncologists and radiation oncologists was assembled to explore the published experience and their own working experience of the diagnosis and treatment of adenoid cystic carcinomas arising in the vicinity of the sinonasal tract, nasopharynx, lacrimal glands and external auditory canal.

The behaviour of adenoid cystic carcinoma arising in head and neck sites exclusive of the major salivary glands parallels that of tumours with a similar histology arising in the major salivary glands – these are relentless, progressive tumours, associated with high rates of mortality. Of 774 patients reviewed, at least 41 (5.3 per cent) developed documented regional node metastases.

The relatively low overall incidence of nodal metastases in adenoid cystic carcinomas arising in the head and neck region outside of the major salivary glands suggests that routine elective regional lymph node dissection might not be indicated in most patients with these tumours.

Tonsillectomy is a common, low-risk procedure. Post-tonsillectomy haemorrhage remains the most serious complication. Recent nationwide studies in the UK have identified an increased morbidity and mortality for both high-risk and low-risk elective general surgery performed at the weekend.

Data for tonsillectomies performed at a district general hospital over a three-year period were retrospectively reviewed. The same group of surgeons performed elective tonsillectomies on both weekends and weekdays. All patients who developed a post-tonsillectomy haemorrhage were identified and the day of original operation was noted.

Between 2010 and 2013, 2208 (94.00 per cent) elective tonsillectomies were performed on a weekday and 141 (6.00 per cent) were performed on the weekend. Post-tonsillectomy haemorrhages occurred in 104 patients (4.71 per cent) who underwent their procedure on a weekday and in 10 patients (7.09 per cent) who had their surgery at the weekend (p = 0.20).

There is no difference in the rate of post-tonsillectomy haemorrhage for procedures performed on a weekday or weekend.