Tongue Cancer Patients Can be Distinguished from Healthy Controls by Specific N-Glycopeptides Found in Serum.

Purpose: There are no blood biomarkers to detect early-stage oral cavity squamous cell carcinoma (OSCC) prior to clinical signs. Most OSCC incidence is associated with significant morbidity and poor survival. The authors aimed to use mass-spectrometry (MS) technology to find specific N-glycopeptides potentially serving as serum biomarkers for preclinical OSCC screening.

Patients with early-stage oropharyngeal cancer can be identified with label-free serum proteomics.

Background: The increasing incidence of oropharyngeal squamous cell carcinoma (OPSCC) is mainly related to human papillomavirus (HPV) infection. As OPSCCs are often diagnosed at an advanced stage, mortality and morbidity remain high. There are no diagnostic biomarkers for early detection of OPSCC.

Targeted Treatment With Radio Frequency Ablation for Lingual Tonsil.

Objectives: Benign enlargement of the lingual tonsils due to various causes may cause symptoms that warrant treatment. Conventional lingual tonsillectomy remains a challenging procedure, and there is no established standard procedure. We aimed to review the patients receiving different methods of lingual tonsil surgery for various indications at our institute.

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.

Oral squamous cell carcinoma patients can be differentiated from healthy individuals with label-free serum proteomics.

Background: No blood biomarkers to detect early oral cavity squamous cell carcinoma (OSCC) without clinical signs exist - diagnosis is solely based on histology of a visible tumour. Most OSCC patients are diagnosed at advanced stage, which leads to significant morbidity and poor survival. Our aim was to find the serum screening or detection biomarkers in OSCC.

Site-specific familial risk and survival of familial and sporadic head and neck cancer.

The vast majority of head and neck cancers (HNCs) are sporadic squamous cell carcinomas, smoking and heavy drinking being the main risk factors. However, little is known about the possible role of family history and the importance of inherited factors versus shared environment. We used Swedish population-based registries to study the family history of HNC.

Association of BMI-1 and p16 as prognostic factors for head and neck carcinomas.

Conclusions: BMI-1 is an upstream repressor of tumor suppressor p16 and their inverse expression patterns have been linked with patient survival in OPSCC. In this material only p16 remained a relevant prognostic marker in OPSCC.

Objectives: HNSCC tumors carry variable phenotypes and clinical outcomes depending on their anatomical location.

Reconstruction of facial nerve after radical parotidectomy.

Conclusion: Most patients benefitted from immediate facial nerve grafting after radical parotidectomy. Even weak movement is valuable and can be augmented with secondary static operations. Post-operative radiotherapy does not seem to affect the final outcome of facial function.

Expression of toll-like receptors in HPV-positive and HPV-negative oropharyngeal squamous cell carcinoma--an in vivo and in vitro study.

The incidence of oropharyngeal squamous cell carcinoma (OPSCC) has increased over the past decades in many western countries. This trend is mainly attributed to the human papillomavirus (HPV). Cancer-related actions of immunological defense systems are being intensively researched.

Toll-like receptors 3, 7, and 9 in Juvenile nasopharyngeal angiofibroma.

Unlabelled: Juvenile nasopharyngeal angiofibroma (JNA) is a rare, benign tumor affecting adolescent males. The etiology of JNA as well as the causes determining the variable growth patterns of individual tumors remains unknown. Toll-like receptors (TLRs) are part of the innate immune response to microbes; by recognition of distinct features, they link to induction of pro-inflammatory signaling pathways.

Systems-level analysis of clinically different phenotypes of juvenile nasopharyngeal angiofibromas.

Objectives/hypothesis: To explore the molecular genetic background of juvenile nasopharyngeal angiofibromas and to identify biological processes and putative factors determining the different growth patterns of these tumors.

Study Design: By comparing copy number and gene expression level changes of two clinically different phenotypes of juvenile nasopharyngeal angiofibromas, we aimed to find processes essential in the growth and development of these tumors. Based on the results and prior knowledge of the proteins significance for growth, we studied the expression of tyrosine kinase SYK in 27 tumor samples.

Tenascin-C, GLUT-1, and syndecan-2 expression in juvenile nasopharyngeal angiofibroma: correlations to vessel density and tumor stage.

Background: Juvenile nasopharyngeal angiofibroma (JNA) is a highly vascular tumor with some characteristics resembling those of vascular malformations. The significance of different growth and angiogenesis promoting factors for the etiology of JNA remains unsolved.

Methods: We analyzed the immunoexpressions of glucose transporter 1 (GLUT-1), tenascin-C (TNC), and syndecan-2 in a series of 27 patients with JNA and compared these with each other and the clinical data to investigate their possible connections and role in the angiogenesis and growth of JNA.

Stem cell-related proteins C-KIT, C-MYC and BMI-1 in juvenile nasopharyngeal angiofibroma--do they have a role?

Juvenile nasopharyngeal angiofibroma (JNA) is a highly vascular tumour, occurring almost exclusively in adolescent males. Histogenesis of JNA remains unclear, two optional theories proposing either fibrous or vascular tissue as the tissue of origin. Stem cell-related proteins have been discussed to possibly participate in the growth of these tumours.

The changing surgical management of juvenile nasopharyngeal angiofibroma.

The management of juvenile nasopharyngeal angiofibroma (JNA) has changed during the last decades but it still continues to be a challenge for the multidisciplinary head and neck surgical team. The aim of this study was to review the used treatment approach and outcome of JNA in a single institution series of 27 patients diagnosed and treated during the years 1970-2009. All patients were male, with the median age of 17 years (range 11-33 years).

Juvenile nasopharyngeal angiofibroma: no evidence for inheritance or association with familial adenomatous polyposis.

Juvenile nasopharyngeal angiofibromas (JNAs) are rare tumors with prominent vascularity and locally destructive growth. The pathogenesis of JNA is largely unknown. A causal association between JNA and familial adenomatous polyposis has been suggested.