Psychosocial factors and patient and healthcare delays in large (class T3-T4) oral, oropharyngeal, and laryngeal carcinomas.

BACKGROUND: Psychosocial factors and socioeconomic status have been associated with incidence, survival, and quality of life among patients with head and neck cancer. We investigated the association between different psychosocial factors, socioeconomic status, and patient delays in T3-T4 oral, oropharyngeal, and laryngeal cancer. PATIENTS AND METHODS: We conducted a nationwide prospective questionnaire-based study (n = 203) over a 3-year period. RESULTS: We found no association between psychosocial factors (depression, social isolation, loneliness, and cynical hostility) and patient delay. Depression was three times more common among head and neck cancer patients compared with the general Finnish population. Head and neck cancer patients had lower educational levels and employment status, and were more often current smokers and heavy drinkers. CONCLUSIONS: Although we found no association between patient delay and psychosocial factors, patients diagnosed with a large head and neck cancer appeared to have a lower socioeconomic status and higher risk for developing depression, which should be considered in clinical practice.

PET-CT detection of local residual laryngeal carcinoma after definitive (chemo)radiotherapy.

BACKGROUND: Positron emission tomography and computed tomography (PET-CT) is currently recommended in evaluating the treatment response after (chemo)radiotherapy ([C]RT). In the larynx, post-treatment changes and physiological uptake make image interpretation more challenging compared to other head and neck sites. Previous research has not addressed imaging factors specifically in the larynx that would help in distinguishing the residual disease and explain the unique challenges of that anatomic area. The study cohorts are small and heterogenous. Our objective was to investigate the ability of PET-CT in diagnosing local residual laryngeal carcinoma, and to uncover imaging factors that could be used in differentiating the residual disease from post-treatment and physiological changes. In the same study cohort, we also aimed to uncover prognostic factors for local residual or recurrent disease. METHODS: Our retrospective study cohort included 73 patients with T2-T4 laryngeal carcinoma undergoing (C)RT with curative intention, and post-treatment non-contrast-enhanced PET-CT at 2-6 months. Findings were compared between local residual and non-residual disease. Local residual disease was defined as a persistent tumor growth with no evidence of remission in between, confirmed by biopsy, and evident within 6 months from the end of RT. PET-CT was evaluated using a 3-step scale: negative, equivocal, and positive. RESULTS: Nine (12%) had a local residual tumor and 11 (15%) developed local recurrence, based on the biopsy. The median follow-up of surviving patients was 64 months (range, 28-174). In univariate analysis, primary tumor diameter greater than 2.4 cm (median value), and vocal cord fixation were prognostic for local residual or recurrent disease. Sensitivity, specificity, PPV, and NPV were 100%, 75%, 36%, and 100%, respectively, when the equivocal interpretation was grouped with the positive interpretation. All local residuals, and 28% (18/64) non-residuals, had a primary tumor area SUVmax of over 4.0 (p < 0.001). CT showed a persistent mass at the primary tumor area in 56% of residuals, and in 23% of non-residuals (p > 0.05). By combining SUVmax>4.0 and mass, specificity improved to 91%. CONCLUSIONS: NPV of post-treatment PET-CT in laryngeal carcinoma is high, but equivocal and positive results have low PPV and require further diagnostics. All local residuals had SUVmax over 4.0. The combination of SUVmax over 4.0 and mass on CT increased specificity, but the sensitivity was low.

The presence of herpesviruses in malignant but not in benign or recurrent pleomorphic adenomas.

BACKGROUND: The etiology of salivary gland tumors is mainly unknown. The anatomical location of the salivary glands, with the mucosal pathway to the oral cavity and its rich microbiome, raises the question of potential viral background. OBJECTIVE: This study focuses on the potential presence of herpes-, polyoma- and parvoviruses in pleomorphic adenoma (PA), recurrent pleomorphic adenoma (RPA) and carcinoma ex pleomorphic adenoma (CaxPA). METHODS: Thirty different viruses were analyzed by PCR-based assays in 68 formalin-fixed paraffin-embedded salivary gland tumors (25 PA, 31 RPA and 12 CaxPA). RESULTS: Virus DNA was detected altogether in 19/68 (28%) tumor samples. Human herpesviruses 6B and 7 (HHV-6B and HHV-7) and Epstein-Barr virus (EBV) were frequently and almost exclusively found in CaxPA (5/12, 7/12, and 3/12, respectively). Within the 7 CaxPA that were virus-positive, 3 samples contained 3, and 1 sample even 4, different viruses. Infrequent viral positivity was shown for parvovirus B19 and cutavirus, as well as Merkel cell and Malawi polyomaviruses. CONCLUSIONS: Our unexpected finding of herpesvirus DNA almost exclusively in CaxPA tissues deserves further in-depth studies.

Tracheostomy complications in otorhinolaryngology are rare despite the critical airway.

PURPOSE: To identify complications of surgical tracheostomies in otorhinolaryngologic patients and adjust our processes to be properly prepared in the future. METHODS: We reviewed retrospectively all surgical tracheostomies (n = 255) performed by otolaryngologist-head and neck surgeons at Helsinki University Hospital between Jan 2014 and Feb 2017. Patient demographics, surgical details, surgical and medical complications, and tracheostomy-related mortality were recorded from the hospital charts. Risk factors for complications were assessed. RESULTS: Altogether, 55 (22%) complications were identified in 39 (15%) patients, with pneumonia, accidental decannulation, and bleeding being the most common. No patient or surgery-related factor reached significance in overall complication risk factor analysis. Medical complications were more common after elective tracheostomies compared to emergency procedures (10.6% vs. 3.5%, p < 0.05). Majority of complications (78%) were classified as mild or moderate according to Clavien-Dindo. Only 2 (0.8%) tracheostomy-related deaths were recorded. CONCLUSION: In otorhinolaryngologists service, severe complications and tracheostomy-related deaths are very rare. Reducing their prevalence even further with careful planning is possible.

Sclerosing sialadenitis of the submandibular gland is rarely an immunoglobulin G4-related disease in the Finnish population.

Chronic sclerosing sialadenitis may represent one of many manifestations of an immunoglobulin G4-related disease. However, existing studies typically consist of small patient cohorts rarely conducted in Western populations. The clinical behavior of chronic sclerosing sialadenitis, including follow-up data, warrants further study. Thus, we aimed to determine whether chronic sclerosing sialadenitis always presents as IgG4-related disease or associates with autoimmune diseases and to determine which additional examinations patients may require. Between 2000 and 2017, 51 patients undergoing submandibular gland resection within the Helsinki University Hospital area were diagnosed with chronic sclerosing sialadenitis. We re-evaluated all specimens and performed immunostaining for IgG4. IgG and CD31 stainings were performed for IgG4-positive specimens. IgG4-related disease diagnosis was defined by the Boston consensus statement criteria. We revised clinical data, distributing a follow-up questionnaire to patients to register symptoms of IgG4-related disease or autoimmune disease during follow-up. The chronic sclerosing sialadenitis criteria were fulfilled in 34 patients, whereby 17 were diagnosed as non-sclerosing chronic sialadenitis. In 19 cases, a sialolith associated with a salivary gland lesion. In total, 12 of 51 cases were recognized as IgG4-positive, while two met the criteria for IgG4-related disease. These two cases belonged to the non-sclerosing chronic sialadenitis group, and both involved other organs. The histopathological features between chronic sclerosing sialadenitis and non-sclerosing chronic sialadenitis overlapped regarding the degree of fibrosis and inflammatory infiltrates. In the Finnish population, chronic sclerosing sialadenitis of the submandibular gland does not appear to present as IgG4-related disease. Non-sclerosing chronic sialadenitis can associate with IgG4-related disease. A histopathological distinction between chronic sclerosing sialadenitis and non-sclerosing chronic sialadenitis is not always unequivocal and the presence of a sialolith does not exclude IgG4-positivity. Therefore, immunostaining for IgG4 should be performed when dense plasma cell infiltration is present in either non-sclerosing chronic sialadenitis or chronic sclerosing sialadenitis.

Perioperative Dexamethasone Is Associated With Higher Short-Term Mortality in Reconstructive Head and Neck Cancer Surgery.

PURPOSE: Studies of the effects of perioperative dexamethasone (DEX) during oncologic surgery are scarce. The first aim of the present study was to clarify whether perioperative DEX affects the short-term mortality in patients with head and neck cancer (HNC). The second aim was to analyze the causes of death and predictors affecting long-term mortality. PATIENTS AND METHODS: The present prospective, double-blind randomized, controlled study included patients with HNC who had undergone microvascular reconstruction from 2008 through 2013. The patients were randomized into 2 groups: the receipt of perioperative DEX for 3 days (study group) or no DEX (control group). The patients' data and cause of death were registered until the end of 2017. The primary cause of death was used in the analyses. RESULTS: A total of 93 patients were included in the present study: 51 in the DEX group (study group) and 42 in the NON-DEX group (control group). Altogether 38 patients died during a median follow-up period of 5.3 years. During the first year, more deaths had occurred in the DEX group than in the NON-DEX group: at 1 month, 4% versus 0%; at 6 months, 14% versus 0%; and at 12 months, 22% versus 5% (P = .043). The overall survival rate for all patients was 59%. HNC was the primary cause of death for most of the patients who died. On univariate analysis, the deceased patients had more advanced disease (higher T classification, P = .002; higher stage, P = .008), a greater need for a gastrostoma (P = .002), more often received postoperative chemotherapy (P = .005), and more often had locoregional (P = .025) or distal (P < .001) metastases. In the multivariate Cox model, the most important long-term predictors of death were the presence of distant metastases (P < .001), a Charlson comorbidity index (CCI) of 5 to 9 (P < .001), and the use of perioperative DEX (P = .004). CONCLUSIONS: The use of perioperative DEX was associated with higher short-term mortality after reconstructive HNC surgery. The most important long-term predictors of death were the receipt of DEX, the presence of distant metastases, and a CCI of 5 to 9. These findings do not encourage the routine use of perioperative DEX for these patients.

Analysis of 255 tracheostomies in an otorhinolaryngology-head and neck surgery tertiary care center: a safe procedure with a wide spectrum of indications.

PURPOSE: To review indications, patient characteristics, frequency, and safety for surgical tracheostomies performed by otolaryngologist-head and neck surgeons in a single tertiary care center. METHODS: Surgical tracheostomies performed by otolaryngologist-head and neck surgeons at Helsinki University Hospital between January 2014 and February 2017 were retrospectively reviewed. Patient demographics, surgical data, and peri- and postoperative mortality information were collected from the hospital charts. Minimum follow-up was 18 months. RESULTS: The total population was 255, with a majority (n = 181; 71%) of males. The majority of patients (n = 178; 70%) were classified as ASA 3 or 4. A total of 198 (78%) patients suffered from head and neck cancer. Multiple (14 altogether) indications for tracheostomy were identified, and simultaneous major head and neck tumor surgery was common (in 58%). Altogether, 163 (64%) patients were decannulated during follow-up with a median cannulation period of 9 days (range 1-425). The surgical mortality was 0.4%. CONCLUSION: Simultaneously performed major tumor surgery was the most common indication for a tracheostomy. A notable number of patients had impaired physical status, but relatively insignificant comorbidities. Almost two-thirds of the patients were decannulated during follow-up, although some patients remained tracheostomy dependent for a prolonged period. Tracheostomy was found to be a safe procedure. LEVEL OF EVIDENCE: 2b.

Comparison of intubation and tracheotomy in adult patients with acute epiglottitis or supraglottitis.

PURPOSE: In acute epiglottitis (AE) or acute supraglottitis (AS), the management of the airway is crucial. We hypothesized that tracheotomized patients recover faster than intubated patients do. METHODS: We retrospectively reviewed all adult AE and AS patients, who underwent intubation or tracheotomy between 2007 and 2018 in a tertiary care center. Patient demographics, treatment, and complications were analyzed. RESULTS: The cohort comprised 42 patients. The airway was secured with intubation in 50% and with tracheotomy in 50%. All intubated patients (n = 21) and three tracheotomized patients were treated in the intensive care unit (p < 0.0001). Procedure-related complications were encountered in three intubated and eight tracheotomized patients (p = 0.892). Median overall treatment cost was 11.547 € and 5.856 € in the intubated and tracheotomized patient groups, respectively (p < 0.001). The median duration of sick leave after discharge from hospital was 13 days in the tracheotomy group and 7 days in the intubation group (p = 0.097). CONCLUSION: Tracheotomy resulted in a less expensive management in securing the airway in AE or AS, but tracheotomized patients had a trend towards more complications and longer sick leaves compared to intubated patients. LEVEL OF EVIDENCE: 2b.

Total laryngopharyngectomy with circumferential reconstruction: Helsinki institutional study.

PURPOSE: Surgical complications after total laryngopharyngectomy (TLP) are common, reconstruction is challenging, and patients often lose their ability to swallow and speak. To evaluate these aspects, we analysed outcome after TLP. METHODS: We reviewed all patients who underwent TLP and subsequent circumferential pharyngeal reconstruction through 2004-2017 at the Helsinki University Hospital. RESULTS: For the 26 eligible patients, TLP was the primary treatment for 11 and salvage surgery for 15, followed by reconstruction with free flaps in 22 patients and pedicled flaps in 4. An early (≤ 30 days) pharyngocutaneous fistula developed in seven patients (27%; median time 13 days; range 6-26), and a late (> 30 days) fistula in five patients (19%; median time 370 days; range 46-785). In addition, ten patients (39%) developed an oesophageal stricture. Four patients (15%) resumed full oral feeding. A speech prosthesis was inserted for 15 patients (58%) and most of them could produce intelligible speech. We found acceptable survival figures for patients undergoing TLP both as a primary treatment and as salvage procedure: the overall survival at 1 year was 82% and 67%, and at 5 years 33% and 27%, respectively. Disease-specific survival at 1 year was 90% and 70%, and that at 5 years was 45% and 43%, respectively. CONCLUSIONS: Despite fair survival, TLP carries a high risk for postoperative complications with limited functional outcome, thus necessitating cautious patient selection and surgical experience.

Development of a novel salivary gland cancer lymph node staging system.

BACKGROUND: Current lymph node (LN) staging for salivary gland cancer (SGC) is extrapolated from mucosal head and neck squamous cell carcinoma. However, given its unique biology and clinical behavior, it is possible that a SGC-specific LN staging system would be more accurate. METHODS: Patients from the National Cancer Data Base with nonmetastatic SGC of the head and neck who were diagnosed from 2004 through 2013 and underwent surgical resection and neck dissection removing at least 10 LNs were included. Multivariable models were constructed to assess the association between survival and LN factors, including number of metastatic LNs, extranodal extension, LN size, and lower LN involvement. RESULTS: Overall, 4520 patients met the inclusion criteria. An increasing number of metastatic LNs was found to be strongly associated with worse survival without plateau. The risk of death increased more rapidly up to 4 LNs (hazard ratio, 1.34; 95% confidence interval, 1.27-1.41 [P < .001]), and was more gradual for additional LNs >4 (hazard ratio, 1.02; 95% confidence interval, 1.01-1.03 [P < .001]). LN size, extranodal extension, and lower LN involvement appeared to have no impact on survival when accounting for the number of metastatic LNs. Recursive partitioning analysis was used to create a novel SGC LN staging system in which N0 indicates 0 positive LNs, N1 indicates 1 to 2 positive LNs, N2 indicates 3 to 21 positive LNs, and N3 indicates ≥ 22 positive LNs. This system exhibited greater concordance than the current American Joint Committee on Cancer (eighth edition) system. CONCLUSIONS: Quantitative LN burden is an important determinant of survival in patients with SGC. Use of this variable may improve SGC staging. Cancer 2018. © 2018 American Cancer Society.

Salivary exRNA biomarkers to detect gingivitis and monitor disease regression.

AIM: This study tests the hypothesis that salivary extracellular RNA (exRNA) biomarkers can be developed for gingivitis detection and monitoring disease regression. MATERIALS AND METHODS: Salivary exRNA biomarker candidates were developed from a total of 100 gingivitis and non-gingivitis individuals using Affymetrix's expression microarrays. The top 10 differentially expressed exRNAs were tested in a clinical cohort to determine whether the discovered salivary exRNA markers for gingivitis were associated with clinical gingivitis and disease regression. For this purpose, unstimulated saliva was collected from 30 randomly selected gingivitis subjects, the gingival and plaque indexes scores were taken at baseline, 3 and 6 weeks and salivary exRNAs were assayed by means of reverse transcription quantitative polymerase chain reaction. RESULTS: Eight salivary exRNA biomarkers developed for gingivitis were statistically significantly changed over time, consistent with disease regression. A panel of four salivary exRNAs [SPRR1A, lnc-TET3-2:1, FAM25A, CRCT1] can detect gingivitis with a clinical performance of 0.91 area under the curve, with 71% sensitivity and 100% specificity. CONCLUSIONS: The clinical values of the developed salivary exRNA biomarkers are associated with gingivitis regression. They offer strong potential to be advanced for definitive validation and clinical laboratory development test.

Total or subtotal glossectomy with laryngeal preservation: a national study of 29 patients.

Total glossectomy remains a controversial procedure as it often leads to notorious sequalae in swallowing and speaking functions. Disease entities indicating total glossectomy tend to have poor prognosis. We evaluated whether this type of surgery can be concidered justified based on our national series. We reviewed all total and subtotal glossectomies with laryngeal preservation performed in Finland between 2005 and 2014 in terms of overall survival (OS), disease-specific survival (DSS), locoregional control (LRC), and functional outcome as assessed by gastric tube or tracheostomy dependence and ability to produce intelligible speech. Of the 29 eligible patients, 15 had undergone total and 14 subtotal glossectomy with curative intent. In eight patients, total/subtotal glossectomy was performed as salvage procedure after the previous treatment. One-year estimates for OS, DSS, and LRC were 48, 59, and 66%, and corresponding 3-year estimates were 31, 46, and 46%, respectively. The gastrostomy and tracheostomy dependence rates at 1 year after operation were 77 and 15%, respectively. Fifty-nine percent of the patients were assessed to be able to communicate verbally. As in most other published studies, we found unsatisfactory survival figures after subtotal or total glossectomy and most patients remained dependent on gastrostomy tube. This surgery is, however, presumably the best and often only chance for cure in a selective patient population, and according to our opinion, it is indicated as a primary or salvage treatment provided that the reconstruction is planned optimally to guarantee a reasonable quality of life after surgery.

Expression of hormone receptors in oropharyngeal squamous cell carcinoma.

OBJECTIVES: Hormone receptors play an important role in many types of cancers. Alongside factors associated with human papillomavirus (HPV) infection, hormonal receptors may impact the tumorigenesis of oropharyngeal cancer. MATERIALS AND METHODS: This study consists of 199 consecutive oropharyngeal squamous cell carcinoma (OPSCC) patients diagnosed and treated with a curative intent. We examined androgen (AR), estrogen (ER; both alpha and beta), and progesterone receptor (PR) expressions using immunohistochemistry comparing tumor and patient characteristics. RESULTS: AR was expressed in 16%, PR in 27% and ER-beta in 63% of the tumors. HPV- and p16-positive tumors expressed more AR and less PR than their negative counterparts. High PR expression was associated with poor disease-specific and locoregional recurrence-free survival. CONCLUSION: AR, PR, and ER-beta are expressed in OPSCC, and AR and PR expressions are associated with HPV and p16 status. Furthermore, PR appears to have prognostic significance. This may allow us to investigate the role of anti-hormone receptors in the treatment of OPSCC.

Comparison of intubation and tracheotomy in patients with deep neck infection.

Possible airway compromise further complicates treatment of deep neck infections (DNI). Airway management is crucial, but factors affecting the method of choice are unclear. We retrospectively evaluated adult DNIs in a single tertiary center covering 10 years, with special attention on airway management. Patient data were retrieved from electronic data files from 2007 to 2016, and included adult patients with DNI operated through the neck. Of the 202 patients, 127 (63%) were male, with a median age of 47 years. Odontogenic (n = 74; 35%) infection was the most common etiology. Intubation was the most common method of airway management (n = 165; 82%), and most patients (n = 102; 50%) were extubated immediately after surgery. Tracheotomy was performed primarily for 35 (17%) patients, and secondarily for 25 (15%). Two patients were managed in local anesthesia. Altogether 80 (40%) patients required care in the intensive care unit for a median of 7 days. Median hospital stay was 6 days for intubated patients and 10 days for primarily tracheotomized (p = 0.036). DNI extended to the mediastinal space in 25 (12%) patients, most of whom with odontogenic infection (48%), and necrotizing fasciitis (32%). Odontogenic infection was the most common etiology for DNI with increased risk for mediastinal involvement. Intubation was most common type of airway management with high success in immediate extubation after surgery. The need for tracheotomy seemed to lead to a longer hospital care and was associated with a more severe clinical course.

Accuracy of preoperative MRI to assess lateral neck metastases in papillary thyroid carcinoma.

Primary treatment of papillary thyroid carcinoma (PTC) with lateral lymph node metastasis is surgery, but the extent of lateral neck dissection remains undefined. Preoperative imaging is used to guide the extent of surgery, although its sensitivity and specificity for defining the number and level of affected lymph nodes on the lateral neck is relatively modest. Our aim was to assess the role of preoperative magnetic resonance imaging (MRI) in predicting the requisite levels of neck dissection in patients with regionally metastatic PTC, with a focus on Levels II and V. All patients with PTC and lateral neck metastasis who had undergone neck dissection at the Department of Otorhinolaryngology-Head and Neck Surgery, Helsinki University Hospital, Helsinki, Finland from 2013 to 2016 and had a preoperative MRI available were retrospectively reviewed. A head and neck radiologist re-evaluated all MRIs, and the imaging findings were compared with histopathology after neck dissection. In the cohort of 39 patients, preoperative MRI showed concordance with histopathology for Levels II and V as follows: sensitivity of 94 and 67%, specificity of 20 and 91%, positive predictive value of 56 and 75%, and negative predictive value of 75 and 87%, respectively. In PTC, MRI demonstrated fairly high specificity and negative predictive value for Level V metastasis, and future studies are needed to verify our results to omit prophylactic dissection of this level. Routine dissection of Level II in patients with regionally metastatic PTC needs to be considered, as MRI showed low specificity.

Prospective experience of percutaneous endoscopic gastrostomy tubes placed by otorhinolaryngologist-head and neck surgeons: safe and efficacious.

Percutaneous endoscopic gastrostomy (PEG) is often the treatment of choice in head and neck cancer (HNC) patients needing long-term nutritional support. Prospective studies on PEG tube placement in an otorhinolaryngologist service are lacking. At our hospital, otolaryngologist-head and neck (ORL-HN) surgeons-have performed PEG insertions for HNC patients since 2008. We prospectively analyzed 127 consecutive HNC patients who received their PEG tubes at the Department of Otorhinolaryngology-head and neck surgery, and evaluated the outcome of PEG tube insertions performed by ORL-HN surgeons. To compare time delays before and after, PEG placement service was transferred from gastrointestinal surgeons to ORL-HN surgeons, and we retrospectively analyzed a separate group of 110 HNC patients who had earlier received PEG tubes at the Department of Gastrointestinal Surgery. ORL-HN surgeons' success rate in PEG insertion was 97.6%, leading to a final prospective study group of 124 patients. Major complications occurred in four (3.2%): two buried bumper syndromes, one subcutaneous hemorrhage leading to an abscess in the abdominal wall, and one metastasis at the PEG site. The most common minor complication was peristomal granulomatous tissue affecting 23 (18.5%) patients. After the change in practice, median time delay before PEG insertion decreased from 13 to 10 days (P < 0.005). The proportion of early PEG placements within 0-3 days increased from 3.6 to 14.6% (P < 0.005). PEG tube insertion seems to be a safe procedure in the hands of an ORL-HN surgeon. Independence from gastrointestinal surgeons' services reduced the time delay and improved the availability of urgent PEG insertions.

Toll-like receptor 9 expression in mucoepidermoid salivary gland carcinoma may associate with good prognosis.

BACKGROUND: Mucoepidermoid carcinoma (MEC) is the most common salivary gland malignancy. Although several biomarkers have been evaluated, histological grade remains the most valuable prognostic marker. Toll-like receptor 9 (TLR9) is an immune receptor recognizing microbial DNA. Its expression associates with prognosis or cancer properties in several cancers. This study examined the role of TLR9 in MEC. METHODS: Sixty patients with salivary gland MEC were collected from two Finnish university hospitals, and tumor samples were stained for TLR9. Salivary gland high-grade MEC cell line (UT-MUC-1) was cultured to assess TLR9 and MMP-13 expression. The function of TLR9 was studied in vitro using traditional Matrigel(®) invasion assay and novel human myoma organotypic model. RESULTS: Cancer-specific survival was related with tumor grade (P = 0.01), and there were no deaths in patients with low-grade MEC. TLR9 was expressed in 56 of 60 (93%) tumors. High TLR9 expression indicated better survival in the patient series (P = 0.002) and showed a trend for association with lower disease stage (P = 0.06) and higher differentiation grade (P = 0.068). In multivariate analysis, TLR9 expression was prognostically insignificant due to heavy correlation to disease stage and higher gradus. Treating UT-MUC-1 cells with TLR9 ligand CpG in vitro induced MMP-13 expression and invasion in Matrigel(®) invasion assay, whereas decreased invasion was seen in myoma organotypic model. CONCLUSION: Functional TLR9 is present in salivary MEC, and high level of expression may indicate good prognosis. However, more studies are needed to evaluate biological consequences of TLR9 interaction in tumor cells.

[Neck lump--fine-needle aspiration biopsy specimen in diagnostics and planning of therapy]. / Kaulakyhmy--ohutneulabiopsia diagnostiikassa ja hoidon suunnittelussa.

In elucidating the cause of a non-tender neck lump, the age of the patient, location and finding on palpation of lumps, and clinical examination of ear, nose and throat disorders and possible other findings are crucial. Fine-needle aspiration biopsy specimen, most commonly obtained in connection with ultrasonic imaging, is a key method in diagnosing lumps of the neck and salivary gland region that are obviously noninflammatory. Ultrasonic imaging combined with a cytological specimen is primary in the case of otherwise normal clinical examination.

Clinical decision making when cytology indicates a Warthin tumor.

Warthin tumor (WT) is a benign tumor usually affecting the parotid gland. The main diagnostic tool remains ultrasound combined with fine-needle aspiration cytology (FNAC). This study aims to examine how reliably FNAC indicates WT for clinical decision making regarding surgical versus conservative management. We included all patients who underwent FNAC from a parotid gland lesion between 2016 and 2018 at our institution, and whose FNAC revealed WT suspicion. The FNACs were divided into three groups based on the cytology report: certain, likely, and possible WT. The patients were divided into two groups based on having had either surgery or follow-up. We sent a questionnaire to patients who had not undergone surgery in order to obtain follow-up for a minimum of four years. Altogether, 135 FNAC samples, from 133 tumors and 125 patients, showed signs of WT. Of the 125 patients, 44 (35%) underwent surgery, and 81 (65%) were managed conservatively. Preoperative misdiagnosis in FNAC occurred in three (7%) surgically treated tumors. Their FNACs were reported as possible WTs, but histopathology revealed another benign lesion. In the conservatively treated group, two patients underwent surgery later during the follow-up. Cytological statements of WT were seldom false, and none were malignant. The majority of the patients were only followed-up and rarely required further treatment. A certain or likely diagnosis of WT in the FNAC report by an experienced head and neck pathologist is highly reliable in selecting patients for conservative surveillance.