Malignancy and "Violated Neck" Rates in Consecutive Cohort of 79 Adult Patients With Solitary Cystic Neck Mass-Lessons Learned and Recommendations for Clinical Practice Guidelines.

OBJECTIVE: The neck region is a common site for solitary cystic neck mass (SCNM) of various etiologies, including congenital, inflammatory, and neoplastic. In adults, the primary focus is excluding malignancy. The objective of this study was to retrospectively analyze the accuracy of available diagnostic technologies for the differentiation of benign and malignant SCNM in adult patients. The study aimed to develop new clinical practice guidelines for evaluating and managing SCNM. METHODS: The primary predictive variables were the diagnostic utilities of fine-needle aspiration cytology (FNAC), ultrasound (U/S), multislice computed tomography, and magnetic resonance imaging. The study's endpoint was the overall diagnostic accuracy in differentiating between benign and malignant SCNM. The final diagnosis was based on histopathology. RESULTS: The study included 79 adult patients: 55 (69.62%) male and 24 (30.38%) female ( P <0.05). The mean age at presentation was 42.1 years (range: 18-84 years). Solitary cystic neck mass was distributed in the anterior neck region in 30 (37.97%) patients and the posterolateral neck regions in 49 (62.03%) patients ( P <0.05). The posterolateral neck regions had a significantly higher rate of malignant SCNM than the anterior neck region [19/49 (38.78%) versus 1/30 (3.33%)] ( P <0.05). There was no statistically significant difference between the U/S+FNAC and U/S+FNAC+multislice computed tomography and/or magnetic resonance imaging groups in differentiating benign and malignant SCNM (40/42 versus 36/37, P >0.05). "Violated neck" was recorded in 2 cases. CONCLUSION: A systematic investigation protocol should be applied to evaluate adult patients with SCNM.

Economic cost of managing patients with oral potentially malignant disorders in Sri Lanka.

OBJECTIVES: Cancer of the oral cavity is the leading malignancy amongst males in Sri Lanka, and eighth amongst women. Almost all malignancies are developed from a clinically visible precursor stage called an oral potentially malignant disorder (OPMD). The objective of this study was to estimate costs of managing patients with OPMD in Sri Lanka for a 12-month period from diagnosis. METHODS: A hospital-based costing study was conducted in Sri Lanka in the years 2016-2017. Three selected treatment centres participated. For societal perspectives, healthcare, household and indirect costs were used. Costs to the healthcare system included clinic visits, diagnostic biopsy, consumables and drug costs. Capital costs included apportioned value of land, buildings, equipment and furniture. Household costs consisted of out-of-pocket expenditure and indirect costs of lost income. RESULTS: Sixty-two patients were recruited (39 male and 23 female). The majority had awareness of oral potentially malignant disorders (OPMDs). Total average cost of managing a single patient with an OPMD for 1 year was SLR 19 547 (US$ 140) which includes a health system cost of SLR 7320 (US$ 52) and household cost of SLR 12 227 (US$ 87). Travel loss and income loss were a substantial burden to patients and their families. CONCLUSIONS: Managing patients with an OPMD, even with annual monitoring, is less costly than managing patients with oral cancer. Out-of-pocket costs are very high, and these could be reduced by revising the National Management Guidelines to allow care closer to home.

Perceived Satisfaction of Patients and Related Factors for Oral Surgery Student Dental Clinic: Evidence From Sri Lanka.

We assessed perceived satisfaction of patients and related factors for treatment provided by the oral surgery student dental clinic of the only Sri Lankan dental school. A descriptive cross-sectional study was conducted among 288 consenting patients who received oral surgery treatment at the student dental clinic of Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka. A self-administered, validated questionnaire and a 19-item multidimensional patient satisfaction scale were used for data collection. Patients of all ages were represented, but were dominated by females, aged 30 to 44 years, possessing educational attainment up to General Certificate of Education ordinary or advanced level of which 54.9% were unemployed. They had travelled distances of less than 10 and 10 to 20 km (28.1% and 27.5%, respectively) predominantly to receive tooth extractions exacerbated by symptoms. Overall, 90% of responding patients were highly satisfied with the items of many dimensions of dental treatment. Despite high levels of perceived satisfaction expressed, further improvements were warranted for waiting time, optimal pain control with more kind, and courteous staff.

Low-Grade Myofibroblastic Sarcoma of the Oral Cavity: A Report of Three Cases Illustrating an Emerging Disease in Children.

Low-grade myofibroblastic sarcoma (LGMS) is a mesenchymal tumor of myofibroblasts that occurs more frequently in adults. A series of three cases is presented to illustrate that LGMS may also occur within the oral cavity in children and adolescents. The first case (Case 1) occurred intra-osseously in the mandible, while the remaining two presented as gingival swellings and were purely restricted to soft tissue (cases 2 and 3). The intra-osseous lesion arose in a 7-year-old girl, whereas the gingival lesions were observed in a 12-year-old girl (Case 2) and a 13-year-old boy (Case 3). Histopathologically, all cases were composed of spindle shaped cells arranged into long fascicles showing mild to moderate degree of nuclear atypia. Ki-67 (MIB-1) proliferation activity was relatively low, amounting to 3-5% in all cases. Immunohistochemically, all cases showed smooth muscle actin (SMA) positivity in spindle cells, while desmin, beta catenin, cytokeratin, and CD34 were negative, resulting in a diagnosis of LGMS. In conclusion, current series of three cases of LGMSs that occurred in the oral cavity in a child and two adolescent patients is presented to highlight an emerging disease that requires additional data for further characterization.

Economic burden of managing oral cancer patients in Sri Lanka: a cross-sectional hospital -based costing study.

OBJECTIVE: Cancer of the oral cavity is the leading malignancy among males in Sri Lanka, and sixth among women. This study aimed to estimate costs of managing patients with oral cancer (OCA) in Sri Lanka for a 12 month period from diagnosis. DESIGN: Hospital based costing study. SETTINGS: Four selected cancer treatment centres in Sri Lanka. PARTICIPANTS: Sixty-nine OCA patients: 60 were males and 12 had recurrent tumours. OUTCOME: Societal perspectives (healthcare, household and indirect costs) were itemised. Costs to the healthcare system included surgery, Intensive Care Unit (ICU) care, chemotherapy and radiotherapy. Capital costs including apportioned value of land, buildings, equipment and furniture. Household costs consisted of out of pocket expenditure for healthcare and indirect costs of lost income. Costs were estimated from the stage of presentation for treatment to 1 year of follow-up. RESULTS: Mean cost of managing a single stage II OCA patient for 1 year was Sri Lankan rupees (SLR) 58 979 (US$394, at the midyear exchange rate in 2016) to the health system. Mean household cost was SLR 77 649 (US$518). The annual cost of managing a stage III or IV patient was SLR 303 620 (US$2027), with household costs of SLR 71 932 (US$480). CONCLUSIONS: Owing to the high incidence of OCA in Sri Lanka, the economic costs associated with these diseases are enormous, resulting in negative impacts on both the healthcare system and individual families, seriously impacting the country's economy. Policy-makers should take note of this burden and increase steps for prevention and control of this devastating disease.

Effects of epidermal growth factor on the invasion activity of the oral cancer cell lines HSC3 and SAS.

Epidermal growth factor (EGF) is excreted in a high concentration in human saliva and modulates the growth and differentiation of various cancer cells. To elucidate the molecular mechanisms by which EGF affects oral cancer growth and invasion, we analyzed the Matrigel invasion activity of the cultured oral cancer cell line. Cells grown under the influence of EGF were subjected to Matrigel invasion assays and cells grown in the absence of EGF were used as controls. Gelatin-zymography and Northern blot analyses quantified the invasiveness and tumorigenicity. Chloramphenicol acetyltransferase assay (CAT assay) determined the EGF stimulation of matrix metalloproteinase (MMP) expression. EGF increased the number of cells penetrating a Matrigel membrane. Gelatin-zymography and Northern blot analysis revealed that MMP9 and Ets1 expressions correlated with EGF but MMP2 was not changed. a transient transfection assay revealed that EGF increased the promoter activities of the MMP9 genes in HSC3 and SAS cells. These results suggest that EGF increases the invasion activity of oral cancer cells partly by increasing MMP9.