Management of lateral cystic neck masses with no apparent upper aerodigestive tract primary tumour in adults is controversial. Imaging modalities and fine needle aspiration cytology often struggle to distinguish the presence of malignancy.

This study entailed a multicentre retrospective review of all patients with isolated lateral cystic neck masses from 2012 to 2018 in three Welsh health boards, utilising demographic data and first-line investigations (ultrasound scanning and fine needle aspiration cytology) to develop an evidence-based predictive tool for risk of malignancy.

It was found that 29.1 per cent of cystic lesions were malignant on final histology. Age, male gender, non-benign ultrasound scan findings and fine needle aspiration cytology were significant risk factors on univariate analysis. The final multivariate analysis predicted a risk of malignancy ranging from 2.1 to 65.0 per cent depending on the covariate pattern. Smoking status was non-significant.

A rigorous, risk-stratified approach to the management of these patients should aid the clinician in minimising morbidity and optimising resources.

To investigate the performance of indirect computed tomography lymphography with iopamidol for detecting cervical lymph node metastases in a tongue VX2 carcinoma model.

A metastatic cervical lymph node model was created by implanting VX2 carcinoma suspension into the tongue submucosa of 21 rabbits. Computed tomography images were obtained 1, 3, 5, 10, 15 and 20 minutes after iopamidol injection, on days 11, 14, 21 (six rabbits each) and 28 (three rabbits) after carcinoma transplantation. Computed tomography lymphography was performed, and lymph node filling defects and enhancement characteristics evaluated.

Indirect computed tomography lymphography revealed bilateral enhancement of cervical lymph nodes in all animals, except for one animal imaged on day 28. There was significantly slower evacuation of contrast in metastatic than non-metastatic nodes. A total of 41 enhanced lymph nodes displayed an oval or round shape, or local filling defects. One lymph node with an oval shape was metastatic (one of 11, 9.1 per cent), while 21 nodes with filling defects were metastatic (21/30, 70 per cent). The sensitivity, specificity, accuracy, and positive and negative predictive values when using a filling defect diameter of 1.5 mm as a diagnostic criterion were 86.4, 78.9, 82.9, 82.6 and 83.3 per cent, respectively.

When using indirect computed tomography lymphography to detect metastatic lymph nodes, filling defects and slow evacuation of contrast agent are important diagnostic features.

To establish the features of Mycobacterium tuberculosis infection in the head and neck region, and to determine which investigations have the greatest diagnostic accuracy.

Region-based, retrospective cohort study.

The study included 148 patients with tuberculosis of the head and neck treated in the Greater Glasgow and Clyde region between 2000 and 2007.

The following diagnostic sensitivities were calculated: 53 per cent for fine needle aspiration, 95 per cent for core biopsy and 91 per cent for lymph node excision biopsy. There was a statistically significant difference between the sensitivity results for fine needle aspiration versus core biopsy (p = 0.0003) and fine needle aspiration versus excision biopsy (p < 0.0001). There was no statistically significant difference between the sensitivity results for core biopsy and excision biopsy.

Core biopsy has equivalent diagnostic accuracy to excision biopsy in the investigation of head and neck tuberculosis. We suggest that core biopsy should be used in preference to lymph node excision, as it can be performed under local anaesthetic outside the operating theatre. A proposed algorithm for diagnostic management is included.

This study aimed (1) to investigate the relationship between the presence of lymph node central necrosis, viewed on pre-operative computed tomography imaging, and the occurrence of histopathologically determined metastatic lymph node extracapsular spread and (2) to determine whether a larger scale study would be valuable.

Pre-operative computed tomography scans, surgical records and post-operative histopathological analysis results were reviewed for 19 consecutive neck dissections performed in 17 patients with head and neck squamous cell carcinoma.

A total of 20/26 (77 per cent) lymph nodes with central necrosis had extracapsular spread on histopathological analysis. Twenty of 21 (95 per cent) lymph nodes with extracapsular spread had central necrosis on pre-operative computed tomography. Thirty-four of 40 (85 per cent) lymph nodes without extracapsular spread had no evidence of central necrosis on computed tomography. Only three of 12 (25 per cent) patients with lymph node central necrosis identified on pre-operative computed tomography were found to have actual necrosis on final histopathological analysis.

Lymph node central necrosis viewed on pre-operative computed tomography scans is a useful indicator of metastatic lymph node extracapsular spread, with a sensitivity of 95 per cent, a specificity of 85 per cent, a positive predictive value of 69 per cent and a negative predictive value of 98 per cent. Lymph node diameter is not a sensitive indicator of extracapsular spread.

The purpose of this study was to assess the presence of dendritic cell phenotypic antigens in the cervical lymph nodes of patients with hypopharyngeal and laryngeal carcinoma, and to assess the significance of such antigens in the tumour immune reaction.

Immunohistochemical staining of cervical lymph nodes was performed using antibodies against cell surface markers such as S-100 protein and cluster of differentiation 1a and 83 glycoproteins. Two hundred and seventy-four cervical lymph nodes obtained at surgery from 37 patients with hypopharyngeal carcinoma and 31 patients with laryngeal carcinoma were thus evaluated.

The number of dendritic cells positive for each phenotypic antigen was significantly greater in non-metastatic lymph nodes than in metastatic lymph nodes. In the metastatic lymph nodes, cluster of differentiation 1a glycoprotein positive dendritic cells were predominantly detected in the cancer ‘nest’, whereas mature dendritic cells staining for cluster of differentiation 83 glycoprotein were prominent in the peritumour area. In the metastatic lymph nodes, in contrast to the cluster of differentiation 1a glycoprotein positive dendritic cells, the degree of infiltration of cluster of differentiation 83 glycoprotein positive dendritic cells was significantly higher in the peritumour area than in the cancer nest. There was a significant difference in survival status, comparing patients with different degrees of dendritic cell infiltration for each type of phenotypic antigen.

Dendritic cells may play different roles in tumour immunity against hypopharyngeal and laryngeal carcinoma. The phenotypic antigens of dendritic cells may thus constitute important indices with which to predict the prognosis of patients with hypopharyngeal and laryngeal carcinoma.

We report an extremely rare case of Langerhans' cell histiocytosis involving isolated cervical lymph nodes, and we discuss the diagnosis and treatment of this infrequent disease.

We present a case report and literature review concerning this disease entity.

A 54-year-old man presented with persistent, multiple, left neck masses. Histopathological study of lymph node specimens showed proliferation of Langerhans' cells coupled with eosinophilic and neutrophilic microabscesses. Positive immunohistochemical staining for Cluster of Differentiation 1a (CD1a) in Langerhans' cells confirmed the diagnosis. No other abnormalities were noted on a series of image studies. The patient was managed with ‘watchful waiting’ without subsequent therapy. The neck lesions regressed gradually over time, and the patient did well over a two-year follow-up period.

The clinical presentation of Langerhans' cell histiocytosis is highly variable, and the choice of treatment depends on the involved organs. Definitive diagnosis depends on identification of characteristic immunohistochemical or ultrastructural features of the biopsy specimen. Watchful waiting may be an effective management strategy in cases of adult isolated lymph node Langerhans' cell histiocytosis, due to its possible spontaneous regression.

The commonest form of extrapulmonary tuberculosis is tubercular cervical lymphadenitis, or scrofula.

A total of 1827 patients with cervical lymphadenopathy who presented to various out-patients clinics of our institution were studied over a three-year period. Eight hundred and ninety-three (48.87 per cent) of these patients had lesions of tubercular origin. The most common observation was unilateral, matted adenopathy in female patients aged between 11 and 20 years and without constitutional symptoms of tuberculosis. Posterior triangle nodes were affected in 43.8 per cent of cases, followed by upper deep cervical nodes in 33.9 per cent. Fine needle aspiration cytology constituted the main diagnostic tool, with a positive yield in 90 per cent of patients. Polymerase chain reaction analysis was performed in 126 patients, with a sensitivity of 63 per cent. Only 18 per cent of patients had associated pulmonary tuberculosis, the rest having isolated involvement of cervical nodes. Medical treatment with anti-tubercular drugs for a period of six months formed the mainstay of treatment and cure. Surgical management was reserved for selected refractory patients.

Tubercular cervical lymphadenitis can readily be diagnosed by fine needle aspiration cytology, a simple and cost-effective test. The disease can be cured completely by a short course of anti-tubercular chemotherapy, without surgical intervention.

Considerable controversy exists regarding the merits of elective neck dissection in patients with early stage oral cavity and oropharyngeal squamous cell carcinoma. It is highly desirable to have a method of identifying those patients who would benefit from further treatment of the neck when they are clinically node-negative. The purpose of the present study was to examine the use of sentinel lymph node biopsy in identifying occult neck disease in a cohort of patients with node-negative oral cavity and oropharyngeal squamous cell carcinoma.

We evaluated a total of 13 patients with oral cavity and oropharyngeal cancer who were clinically and radiologically node-negative.

A sentinel lymph node was found in all 13 patients, revealing metastatic disease in five patients, four of whom had one or more positive sentinel lymph nodes. There was one false negative result, in which the sentinel lymph node was negative for tumour whereas histological examination of the neck dissection specimen showed occult disease.

In view of these findings, we would recommend the use of sentinel lymph node biopsy in cases of oral cavity and oropharyngeal squamous cell carcinoma, in order to aid the differentiation of those patients whose necks are harbouring occult disease and who require further treatment.