Oncologic outcomes of human papillomavirus-associated oropharynx carcinoma treated with surgery alone: A 12-institution study of 344 patients.

BACKGROUND: The oncologic outcomes of surgery alone for patients with American Joint Committee on Cancer 7th edition (AJCC 7th) pN2a and pN2b human papillomavirus-associated oropharynx squamous cell carcinoma (HPV+OPSCC) are not clear. METHODS: The authors performed a 12-institution retrospective study of 344 consecutive patients with HPV+OPSCC (AJCC 7th pT0-3 N3 M0) treated with surgery alone with 6 months or more of follow-up using univariate and multivariate analyses. RESULTS: The 2-year outcomes for the entire cohort were 91% (182 of 200) disease-free survival (DFS), 100% (200 of 200) disease-specific survival (DSS), and 98% (200 of 204) overall survival (OS). The 18 recurrences within 2 years were 88.9% (16 of 18) local and/or regional recurrences and 11.1% (2 of 18) distant metastases. Recurrences were not significantly associated with smoking, pT stage, or pN stage. The 16 patients with locoregional recurrences within 2 years all underwent successful salvage treatments (median follow-up after salvage: 13.1 months), 43.8% (7 of 16) of whom underwent salvage surgery alone for a 2-year overall salvage radiation need of 4.5% (9 of 200). The 2-year outcomes for the 59 evaluable patients among the 109 AJCC 7th pT0-2 N2a-N2b patients with 1 to 3 pathologic lymph nodes (LNs) were as follows: local recurrence, 3.4% (2 of 59); regional recurrence, 8.4% (5 of 59); distant metastases, 0%; DFS, 88.1% (52 of 59); DSS, 100% (59 of 59); OS, 96.7% (59 of 61); and salvage radiation, 5.1% (3 of 59). CONCLUSIONS: With careful selection, surgery alone for AJCC 7th pT0-T2N0-N2b HPV+OPSCC with zero to 3 pathologic LNs without perineural invasion, extranodal extension, or positive margins results in high DFS, DSS, OS, and salvage treatment success. Because of the short-term follow-up, these data support further investigation of treatment de-escalation in this population.

Gadolinium-conjugated gold nanoshells for multimodal diagnostic imaging and photothermal cancer therapy.

Multimodal imaging offers the potential to improve diagnosis and enhance the specificity of photothermal cancer therapy. Toward this goal, gadolinium-conjugated gold nanoshells are engineered and it is demonstrated that they enhance contrast for magnetic resonance imaging, X-ray, optical coherence tomography, reflectance confocal microscopy, and two-photon luminescence. Additionally, these particles effectively convert near-infrared light to heat, which can be used to ablate cancer cells. Ultimately, these studies demonstrate the potential of gadolinium-nanoshells for image-guided photothermal ablation.

99mTc-Tilmanocept vs. Sulfur Colloid for Sentinel Node Biopsy for Melanoma in the Head and Neck.

The objective of the study is to compare sentinel lymph node (SLN) identification rates and performance characteristics of lymphoscintigraphy using 99mTc-sulfur colloid (SC) and 99mTc-tilmanocept (TL) for head and neck cutaneous melanoma. This study is a retrospective study, conducted at a single, tertiary care cancer center. Patients underwent sentinel lymph node biopsy (SLNB) for head and neck cutaneous melanoma, using SC or TL, between October 2014 and February 2019. Differences in SLN identification rates and performance characteristics between the groups were examined using the Mann-Whitney, or Fisher's exact test. Sixty patients underwent SLNB, of which 19 employed TL. There were no significant differences between SC vs. TL in operative duration (116 vs. 127 min, P = 0.97), radiation dose (530 vs. 547 µCi, P = 0.27), median number of SLNs removed (3 vs. 2, P = 0.32), or median follow-up (46.3 vs. 38.4 months, P = 0.11). The rates of positive SLNs (17% vs. 37%, P = 0.11), intraoperative non-localization (12% vs. 16%, P = 0.70), and false-negative SLNB (5% each, P = 1.00) were not significantly different between groups. In patients with head and neck melanoma undergoing SLNB, 99mTc-tilmanocept may not differ from 99mTc-sulfur colloid in identifying SLNs or other performance characteristics. The added expense related to 99mTc-tilmanocept and lack of favorable performance data should urge caution in its adoption and promote further examination of its value in similar patient cohorts.

Quality of Life and Depression Symptoms After Therapy De-Escalation in HPV+ Oropharyngeal Squamous Cell Carcinoma: A Nonrandomized Controlled Trial.

Importance: Despite interest in therapy de-escalation for survivors of human papillomavirus-mediated oropharyngeal squamous cell carcinoma (HPV-positive OPSCC), the association of de-escalated therapy with patient-reported quality of life (QoL) outcomes and burden of depressive symptoms remains unclear. Objective: To identify associations between clinicopathologic and therapeutic variables with patient-reported QoL outcomes and depression symptom burden in patients with HPV-positive OPSCC, who were enrolled in a therapy de-escalation trial. Design, Setting, and Participants: In this nonrandomized controlled, open-label, curative-intent therapy de-escalation clinical trial in adults with stage I, II, and III HPV-positive OPSCC, patients were recruited from a high-volume head and neck oncology practice. Main Outcomes and Measures: The main outcomes of this study included quantitative, patient-reported QoL and depression symptoms per well-validated inventories. Patient-reported QoL was based on Functional Assessment of Cancer Therapy-Head & Neck (FACT-HN) scores (range, 0-148; lower score indicates inferior QoL). Patient-reported depression-related symptom burden was based on Quick Inventory of Depressive Symptomatology-Self-Report (QIDS-SR) scores (range, 0-27; a higher score indicates a higher burden of depression symptoms). Baseline clinicopathologic and treatment variables were paired with FACT-HN and QIDS-SR scores at baseline, 3, 6, 12, 24, and 36 months. Linear mixed-effect models with a random intercept were used for each participant and fixed effects for other measures. Regression coefficients are reported with 95% CIs. Results: A total of 95 patients were followed up for a median (IQR) of 2.2 (1.6-3.2) years. Of these, 93 patients (98%) were male with a mean (SD) age of 60.5 (8.2) years. Overall, 54 participants (57%) had a history of current or former smoking, 47 (50%) underwent curative-intent surgery (with or without adjuvant therapy), and 48 (50%) underwent primary radiotherapy (with or without chemotherapy). The median (IQR) radiotherapy dose was 60 (60-70) Gy. Five deaths and 2 recurrence events were observed (mean [SD] recurrence interval, 1.4 [1.5] years). A higher radiotherapy dose was the only modifiable factor associated with inferior patient-reported QoL (lower FACT-HN) (coefficient, -0.66 [95% CI, -1.09 to -0.23]) and greater burden of depression-related symptoms (higher QIDS-SR) (coefficient, 0.11 [95% CI, 0.04-0.19]). With the 70-Gy dose as reference, improvements in FACT-HN and QIDS-SR scores were identified when patients received 51 to 60 Gy (coefficient, 12.75 [95% CI, 4.58-20.92] and -2.17 [-3.49 to -0.85], respectively) and 50 Gy or lower (coefficient, 15.03 [4.36-25.69] and -2.80 [-4.55 to -1.04]). Conclusions and Relevance: In this nonrandomized controlled, open-label, curative-intent therapy de-escalation trial, a higher radiotherapy dose was associated with inferior patient-reported QoL and a greater burden of depression-related symptoms. This suggests opportunities for improved QoL outcomes and reduced depression symptom burden with a reduction in radiotherapy dose. Trial Registration: ClinicalTrials.gov Identifier: NCT04638465.

Fibula Free Flap Reconstruction of Cervical Spine Defects: A Multi-Institutional Study.

INTRODUCTION: Cervical spine defects result in spinal instability, putting the spinal cord and vertebral arteries at risk of damage and possibly devastating neurological injuries. The fibula free flap can span the spinal defects for stability. There is a paucity of literature on this technique. METHOD: Multi-institutional retrospective case series reviewing patients who underwent cervical spine reconstruction with a fibula free flap. Patient demographic information, comorbidities, characteristics of cervical spine defects, and free flap complications were collected. RESULTS: A total of 1187 fibula free flaps across 10 different institutions were reviewed. Thirteen patients (1.09%) underwent cervical spine reconstruction with a fibula free flap. Average age was 52.3 years old with an age range of 12-79 years. There were six males (46.1%) and seven females (53.8%). The most common defect etiology was infection (n = 6, 46.1%). Most commonly involved cervical spine level of the defect was C5 (n = 10) followed by C6 (n = 9) and C4 (n = 8). The majority of reconstructed defects spanned three or more cervical levels, (n = 9, 69.2%). Facial artery was the most common arterial anastomosis (n = 8). Eight patients (61.5%) required a tracheostomy during their postoperative course. None of the patients had symptomatic or radiographic nonunion. CONCLUSION: This case series demonstrates that a vascularized fibula flap is a potential reconstructive option for cervical spine defects, especially in defects greater than three cervical levels, in the setting of infection, and previously radiated patients. LEVEL OF EVIDENCE: Level 4 Laryngoscope, 2024.

Evaluation of Agreement Among Frailty Assessment Tools in Head and Neck Surgery.

OBJECTIVE: To evaluate intertest agreement among hand grip strength (HGS), the modified Frailty Index (mFI), and the Edmonton Frail Scale (EFS) in patients presenting for presurgical assessment in a head and neck surgery clinic. STUDY DESIGN: Prospective observational study. SETTING: Academic tertiary medical center. METHODS: Prospective data relating to 3 frailty measurements were collected for 96 consecutive adults presenting for presurgical counseling at a single high-volume head and neck surgical oncology clinic. Frailty was determined with previously validated thresholds for the mFI (≥3) and EFS (>7). The highest of 2 HGS measurements performed for the dominant hand was used to determine frail status based on previously validated sex- and body mass index-specific thresholds. Baseline characteristics were identified to determine the association of such variables to each tool. Agreement among frailty assessment tools was examined. RESULTS: The frequency of frailty in the cohort varied among tools, ranging from 29.2% (28/96) for HGS to 12.5% (12/96) for the mFI and 4.2% (4/96) for the EFS. The overall agreement among the 3 frailty tools via the Fleiss index was poor (kappa, 0.088; 95% CI, -0.028 to 0.203). CONCLUSION: Assessment of frailty is complex, and established frailty assessment tools may not agree on which patients are frail. When assessing a patient as frail, clinicians must be vigilant to the influence of frailty assessment tools on such determinations, which may contribute critical input during shared decision making for patients considering head and neck surgery or nonsurgical alternatives.

De-Novo Depression, Prophylactic Antidepressant, and Survival in Patients With Head and Neck Cancer.

OBJECTIVE: To study the association between the development of moderate or greater depression during curative-intent therapy and overall survival (OS) in patients with stages II-IV head and neck cancer (HNC). METHODS: In this secondary analysis of a randomized double-blind placebo-controlled trial, of 148 eligible participants diagnosed with stages II-IV HNC but without baseline depression, 125 were evaluable and were randomly allocated to prophylactic escitalopram oxalate (n = 60) or placebo (n = 65). Participants were followed for development of moderate or greater depression, using Quick Inventory of Depressive Symptomatology-Self Report (QIDS-SR, range 0-27, score ≥11 indicated moderate or greater depression), and were stratified by demographics; cancer site and stage; and primary treatment modality (surgery with or without radiotherapy vs. radiotherapy with or without chemotherapy). Single variable and multivariable Cox proportional-hazard models were used to evaluate differences in OS. RESULTS: Clinically significant depression developed in 22 of 125 patients (17.6%) during HNC treatment. The mean follow-up was 5.0 years (SD 2.4). OS was similar for patient groups, when stratified by development of moderate or greater depression (HR 0.54 [CI, 0.21-1.43]) or use of prophylactic antidepressant (HR 0.64 [CI, 0.34-1.21]). CONCLUSION: There was no significant association between OS and development of moderate or greater depression in patients being treated for stages II-IV HNC, or between OS and use of prophylactic antidepressant escitalopram. Prophylactic antidepressant may be considered in patients with HNC for prevention of clinically significant depression and may offer improved quality of life outcomes. LEVEL OF EVIDENCE: 2 Laryngoscope, 133:856-862, 2023.

A new era for cancer treatment: gold-nanoparticle-mediated thermal therapies.

Nanotechnology-based cancer treatment approaches potentially provide localized, targeted therapies that aim to enhance efficacy, reduce side effects, and improve patient quality of life. Gold-nanoparticle-mediated hyperthermia shows particular promise in animal studies, and early clinical testing is currently underway. In this article, the rapidly evolving field of gold nanoparticle thermal therapy is reviewed, highlighting recent literature and describing current challenges to clinical translation of the technology.

Examining the relationship of immunotherapy and wound complications following flap reconstruction in patients with head and neck cancer.

BACKGROUND: Immunotherapy agents are used to treat advanced head and neck lesions. We aim to elucidate relationship between immunotherapy and surgical wound complications. METHODS: Retrospective multi-institutional case series evaluating patients undergoing ablative and flap reconstructive surgery and immunotherapy treatment. MAIN OUTCOME: wound complications. RESULTS: Eight-two (62%) patients received preoperative therapy, 89 (67%) postoperative, and 33 (25%) in both settings. Forty-one (31%) patients had recipient site complications, 12 (9%) had donor site. Nineteen (14%) had major recipient site complications, 22 (17%) had minor. There was no statistically significant difference in complications based on patient or tumor-specific variables. Preoperative therapy alone demonstrated increased major complications (odds ratio [OR] 3.7, p = 0.04), and trend to more donor site complications (OR 7.4, p = 0.06), however treatment in both preoperative and postoperative therapy was not. CONCLUSIONS: Preoperative immunotherapy may be associated with increased wound complications. Controlled studies are necessary to delineate this association and potential risks of therapy.

Oral cavity squamous cell carcinoma and the clinically n0 neck: the past, present, and future of sentinel lymph node biopsy.

Oral cavity squamous cell carcinoma (OCSCC) has a yearly incidence of 274,000 patients. Twenty percent to 30% of patients will harbor occult regional metastases, an important feature that correlates with worse outcomes. Supraomohyoid neck dissection (SND) is the gold standard treatment, but because of recent successes of sentinel lymph node (SLN) biopsy in the management of breast cancer and melanoma, many have begun evaluating its use in head and neck mucosal cancers. SLN biopsy offers patients decreased morbidity compared with SND, and has shown reproducibly low false-negative rates, high-negative predictive values, and high sensitivities. Limitations with floor-of-mouth primaries and delayed secondary SNDs have been described, but a new agent designed to address these shortcomings, Lymphoseek (Neoprobe Corp.; Dublin, OH), is currently under investigation. This article reviews the current literature on SLN biopsy and introduces a phase 3 study evaluating the efficacy of Lymphoseek in SLN biopsy of OCSCCs.

Association of multimodal analgesia with perioperative safety and opioid use following head and neck microvascular reconstruction.

BACKGROUND: This study examines the association of multimodal analgesia (MMA) protocol for head and neck microvascular reconstruction with postoperative safety and opioid use. METHODS: Retrospective, intention-to-treat analysis of 226 patients undergoing head and neck microvascular reconstruction between January 1, 2014 and August 30, 2018 at a tertiary-care hospital following MMA protocol implementation. Multivariable models examined outcomes of interest. RESULTS: There were no differences between groups in frequency of bleeding, return to operating room, complete flap loss, readmissions, wound complications, and 30-day mortality. Patients in MMA protocol experienced reduced likelihood of partial flap loss (OR 0.18, confidence interval 0.04-0.91), meaningful reduction in postoperative opioid use (cumulative inpatient morphine equivalents [64 vs 141 mg; P < .001], daily morphine equivalents [8 vs 22 mg/d; P < .001]; and 22.5% lower frequency of opioid prescription at discharge [55.6% vs 78.1%; P = .001]). CONCLUSIONS: In patients undergoing head and neck microvascular reconstruction, MMA is safe and associated with reduced postoperative opioid use.

Impact of PET/CT on Staging and Treatment of Advanced Head and Neck Squamous Cell Carcinoma.

OBJECTIVE: To understand the effects of positron emission tomography/computed tomography (PET/CT) evaluation on patients with previously untreated head and neck squamous cell carcinoma (HNSCC) with clinical evidence of regional lymph node involvement. STUDY DESIGN: Prospective blinded study. SETTING: Tertiary care cancer center. SUBJECTS AND METHODS: Informed consent was obtained and data collected from 52 consecutive previously untreated patients with HNSCC and clinical evidence of cervical metastasis. All patients underwent conventional evaluation for HNSCC and whole body PET/CT. Data were evaluated by 5 independent reviewers, who performed TNM staging per the American Joint Committee on Cancer (seventh edition) manual and proposed a treatment plan prior to viewing, and after reviewing, PET/CT. Cases where at least 3 of 5 reviewers agreed were considered significant. RESULTS: There were 0 patients for whom review of the PET/CT altered the T-class assessment (95% CI, 0-6.8), 12 (23.1%) for whom PET/CT altered N classification (95% CI, 12.5-34.5), and 2 (3.8%) for whom PET/CT altered the M classification (95% CI, 0.5-13.2). For 5 patients (9.6%), overall stage was altered per PET/CT review (95% CI, 3.2-21). For 3 patients (5.8%), PET/CT findings prompted reviewers to alter treatment recommendations (95% CI, 1.2-15.9). CONCLUSION: When added to more conventional patient evaluation, PET/CT results in changes to the TNM categories, but overall staging and treatment were less frequently affected. Whether PET/CT should be used routinely for patients with stage III and IV HNSCC is still subjective and merits further study.

Correlation of chitosan's rheological properties and its ability to electrospin.

Chitosan-based, defect-free nanofibers with average diameters ranging from 62 +/- 9 nm to 129 +/- 16 nm were fabricated via electrospinning blended solutions of chitosan and polyethylene oxide (PEO). Several solution parameters such as acetic acid concentration, polymer concentration, and polymer molecular weight were investigated to optimize fiber consistency and diameter. These parameters were evaluated using the rheological properties of the solutions as well as images produced by scanning electron microscopy (SEM) of the electrospun nanofibers. Generally, SEM imaging demonstrated that as total polymer concentration (chitosan + PEO) increased, the number of beads decreased, and as chitosan concentration increased, fiber diameter decreased. Chitosan-PEO solutions phase separate over time; as a result, blended solutions were able to be electrospun with the weakest electric field and the least amount of complications when solutions were electrospun within 24 h of initially being blended. The addition of NaCl stabilized these solutions and increased the time the blended solutions could be stored before electrospinning. Pure chitosan nanofibers with high degrees of deacetylation (about 80%) were unable to be produced. When attempting to electrospin highly deacetylated chitosan from aqueous acetic acid at concentrations above the entanglement concentration, the electric field was insufficient to overcome the combined effect of the surface tension and viscosity of the solution. Therefore, the degree of deacetylation is an extremely important parameter to consider when attempting to electrospin chitosan.

Impact of Primary Tracheoesophageal Puncture on Outcomes after Total Laryngectomy.

Objectives To identify differences in postoperative wound complications associated with a primary tracheoesophageal puncture (TEP) at the time of laryngectomy versus no TEP. Study Design Retrospective review of large national data set. Setting Academic and nonacademic health care facilities in United States, contributing de-identified, risk-adjusted clinical data to the American College of Surgeons National Surgical Quality Improvement Program. Subjects and Methods The National Surgical Quality Improvement Program data set for years 2006 to 2012 identified 430 patients who underwent total laryngectomy with or without a primary TEP. Patients who underwent a TEP at the time of laryngectomy (n = 68) were compared with patients who underwent laryngectomy without a TEP (n = 362). Postoperative wound complications and secondary outcomes, including medical complications and length of hospitalization, were compared between the groups. Results The incidence of "superficial" and "deep or organ space" surgical site infection, medical complications, return to the operating room, and length of hospitalization were similar between the groups. Patients in the TEP group had a higher overall wound complication rate (relative risk, 2.02; 95% CI = 1.06-3.84; attributable risk, 8.17%; number needed to harm, 12). Conclusions Performance of a primary TEP concurrent to total laryngectomy contributed to a small increase in attributable risk for overall wound complications but did not add substantial risk for "superficial" or "deep or organ space" surgical site infection, medical complications, or increased burden for resource utilization. These data may help inform patient choice and physician recommendations for primary alaryngeal speech rehabilitation.

Prediction of Discharge Destination following Laryngectomy.

OBJECTIVE: To identify factors that may predict discharge to intermediate-care facilities following total laryngectomy and may promote earlier discharge planning and optimize resource utilization. STUDY DESIGN: Retrospective review of large national data set. SETTING: Academic and nonacademic health care facilities in United States, contributing deidentified, risk-adjusted clinical data to the American College of Surgeons' National Surgical Quality Improvement Program (ACS-NSQIP). SUBJECTS AND METHODS: Retrospective evaluation of the NSQIP database (2011-2014) identified 487 patients who underwent total laryngectomy without free tissue transfer. Risk of discharge to intermediate-care facilities was evaluated. Role of preoperative and postoperative factors and their association with discharge disposition were assessed using multivariable regression analysis. RESULTS: Compared to reference groups, advanced age (61-70 years: odds ratio [OR], 3.16; 95% confidence interval [CI], 1.12-8.89; >70 years: OR, 3.77; 95% CI, 1.33-10.65), baseline functional dependence (OR, 5.61; 95% CI, 2.62-12.02), cardiac failure (OR, 3.80; 95% CI, 1.08-13.42), and steroid dependence (OR, 3.30; 95% CI, 1.36-8.0) independently predicted discharge to intermediate-care facilities. CONCLUSION: Patients with advanced age, functional dependence, cardiac failure, and steroid dependence may benefit from preemptive counseling and discharge planning in anticipation of postlaryngectomy discharge to intermediate-care facilities.

Development of Multimodal Analgesia Pathways in Outpatient Thyroid and Parathyroid Surgery and Association With Postoperative Opioid Prescription Patterns.

Importance: Prescription opioid use contributes to drug-related adverse effects and risk for dependence and abuse. Multimodal analgesia (MMA) has been shown to be useful in reducing opioid use following orthopedic, gynecologic, and colorectal surgery, but adoption in head and neck surgery has lagged. Recently, we published findings related to the feasibility of MMA protocols in same-day thyroid, parathyroid, and parotid surgery. However, whether such strategies lead to effective and durable reduction in frequency of opioid prescriptions, and affect physician prescribing practices, remains unclear. Objective: To observe trends in adoption and adherence to institutional MMA protocols following thyroid and parathyroid surgery, and to assess the association of institutional multimodal (nonopioid) analgesia protocols with opioid use and physician prescribing patterns following outpatient thyroid and parathyroid surgery. Design, Setting, and Participants: Cohort study at a head and neck surgery service at a tertiary care hospital of prescription patterns and retrospective review of patient medical records following implementation of an optional institutional MMA protocol in 2015, based on preoperative administration of acetaminophen, nonsteroidal anti-inflammatory drugs (NSAIDs), and gabapentin, and postoperative use of acetaminophen and ibuprofen for analgesia after thyroid and parathyroid surgery. There were 528 adult patients who underwent thyroid and parathyroid surgery between January 1, 2015, and June 30, 2017. Main Outcomes and Measures: We report on adherence to the MMA protocol over the study period as measure of physician buy-in and adoption of the technique. The frequency of opioid use and physician prescription patterns following thyroid and parathyroid surgery is reported over the study period to study the association of the available MMA pathway with these variables. Results: A total of 528 patients (mean [SD] age, 53.1 [15.7] years; 80.3% female) underwent outpatient thyroid and parathyroid surgery. The frequency of postoperative opioid prescriptions decreased during the study period (16 of 122 [13.1%] in 2015, 22 of 244 [9.0%] in 2016, 3 of 162 [1.9%] in 2017). Adherence to the MMA protocol increased (0 of 122 cases in 2015, 106 of 244 [43.4%] cases in 2016, 142 of 162 [87.7%] cases in 2017), with reduced likelihood of opioid prescription on discharge (2017 vs 2015 odds ratio, 0.13; 95% CI, 0.04-0.44). Only 1 postoperative hematoma was recorded in the study cohort, and 352 (66.7%) patients achieved same-day discharge, whereas 176 (33.3%) maintained outpatient status but received overnight observation prior to discharge. Conclusions and Relevance: Adoption and adherence to the MMA protocol increased substantially over the study period for patients undergoing thyroid and parathyroid surgery and was associated with a simultaneous significant decline in prescription of postoperative opioid analgesics. Use of nonopioid multimodal agents, incorporating NSAIDs, was safe and did not lead to increased incidence of bleeding. Availability of effective nonopioid MMA pathways may favorably influence physician prescribing practices and avoid unnecessary opioid prescriptions.

Primary intestinal-type adenocarcinoma of the oral tongue: Case report and review of histologic origin and oncologic management.

BACKGROUND: Primary intestinal-type adenocarcinoma (ITAC) of the oral tongue is an extremely uncommon malignancy with only 3 cases reported in the literature. This high-grade malignancy originates from metaplasia of minor salivary glands. METHODS: A 40-year-old man presented with a gradually enlarging midline oral tongue mass, odynophagia, and dysphagia. Management included a median lingual glossectomy, bilateral neck dissections, and adjuvant chemoradiation with 5-fluorouracil (5-FU). Additional chemotherapy with folinic acid, fluorouracil, and oxaliplatin (FOLFOX) was given to mimic therapy in colonic adenocarcinomas. RESULTS: Thirteen months after surgery and adjuvant chemoradiotherapy, there is no evidence of locoregional or distant disease. His diet and speech have normalized after reconstruction without free tissue transfer. CONCLUSION: We report the fourth case of oral tongue ITAC, and present the first histologic evidence of metaplasia of oral cavity salivary epithelium. We also discuss adjuvant therapy recommendations given the lack of clarity for treatment of this rare disease.

Thyroidectomy Hemostasis.

Total thyroidectomy has significantly changed over the years from a morbid procedure to one that is performed routinely on an outpatient basis. This article reviews the history of thyroid surgery with regard to hemostasis, discusses surgical vascular anatomy, and describes the methods of hemostasis. It compares traditional hemostatic surgical techniques with newer techniques such as the Harmonic Scalpel and LigaSure hand pieces. The use of adjunctive hemostatic agents and indications for a drain in thyroid are discussed.

Optical coherence tomography guided microinjections in live mouse embryos: high-resolution targeted manipulation for mouse embryonic research.

The ability to conduct highly localized delivery of contrast agents, viral vectors, therapeutic or pharmacological agents, and signaling molecules or dyes to live mammalian embryos is greatly desired to enable a variety of studies in the field of developmental biology, such as investigating the molecular regulation of cardiovascular morphogenesis. To meet such a demand, we introduce, for the first time, the concept of employing optical coherence tomography (OCT)-guide microinjections in live mouse embryos, which provides precisely targeted manipulation with spatial resolution at the micrometer scale. The feasibility demonstration is performed with experimental studies on cultured live mouse embryos at E8.5 and E9.5. Additionally, we investigate the OCT-guided microinjection of gold­silica nanoshells to the yolk sac vasculature of live cultured mouse embryos at the stage when the heart just starts to beat, as a potential approach for dynamic assessment of cardiovascular form and function before the onset of blood cell circulation. Also, the capability of OCT to quantitatively monitor and measure injection volume is presented. Our results indicate that OCT-guided microinjection could be a useful tool for mouse embryonic research.

Lingual tonsil abscess with parapharyngeal extension: a case report.

Lingual tonsil abscess is a rare disorder previously reported only once in the English literature. Because of their similar structure to that of the palatine tonsils, the lingual tonsils have the propensity to develop infection in the same way. The progression of infection, however, is different in that the lingual tonsils lack a capsule, thus preventing the formation of a peritonsillar abscess. Therefore, the only place for infection to spread is either into the tongue or into the parapharyngeal space. Here we present our experience with the latter, and we provide radiographic evidence of the disease. Lingual tonsil abscess, although rare, is an important potential cause of airway obstruction and must be considered in the case of a sore throat with a normal oropharyngeal exam.