Total laryngectomy increases the risk of chronic constipation: a cross-sectional study of 50 patients.

Purpose: Due to difficulties in breath holding, patients who undergo total laryngectomy may be prone to the development of chronic constipation. However, few reports have described chronic constipation in laryngectomized patients, and no report has described prevalence in patients who have undergone total pharyngolaryngectomy.

Methods: We conducted a cross-sectional study to investigate the prevalence of chronic constipation after laryngectomy and evaluated the relationship between patient characteristics and chronic constipation.

Novel color fluorescence imaging for sentinel lymph node detection in oral and oropharyngeal cancer.

Aim: Fluorescence imaging (FI) using indocyanine green (ICG) is a noteworthy alternative technique for sentinel lymph node (SLN) detection without radiation exposure in oral cavity and oropharynx cancer. However, conventional FI is monochrome, so the visibility is limited. This study assessed whether color FI using the HyperEye Medical System (HEMS) is feasible as an alternative for SLN detection.

Preoperative S-1 Therapy for Head and Neck Carcinoma During the Waiting Period Before Surgery.

Background/aim: In patients with squamous cell carcinoma of the head and neck (SCCHN), delayed surgery can result in poorer postoperative function and prognosis due to the growth of the tumor and extended surgery. Further, delay may even make the tumor unresectable. To prevent tumor growth during the waiting period before surgery, S-1 has been administrated preoperatively at several facilities in Japan.

The Significance of CD109 Expression in Oropharyngeal Squamous Cell Carcinoma.

Background/aim: Up-regulation of CD109 occurs in malignant tumours, although its role is unknown. Here we aimed to evaluate the significance of CD109 expression in oropharyngeal squamous cell carcinoma (OPSCC).

Patients And Methods: Immunohistochemical analysis was performed to assess CD109 expression in 169 patients with OPSCC.

Removal of a Giant Parapharyngeal Space Oncocytoma Without Osteotomy.

Oncocytoma arising from the parotid gland and extending into the parapharyngeal space (PPS) has not been previously reported. A 64-year-old woman presented with a large slowly growing mass extending from the parotid to the submandibular area, expanding medially to displace the pharynx across the midline. Core-needle biopsy revealed an oncocytoma in the PPS measuring 120 × 88 × 60 mm in size.

Evaluation of the usefulness of upper gastrointestinal endoscopy and the Valsamouth by an otolaryngologist in patients with Hypopharyngeal cancer.

Objective: The aim of this retrospective study is to evaluate the usefulness of upper gastrointestinal endoscopy and the Valsamouth by an otolaryngologist in patients with hypopharyngeal cancer to assess the risk.

Methods: The study group comprised 41 patients with untreated hypopharyngeal cancer that was precisely diagnosed by an otolaryngologist using upper gastrointestinal endoscopy and the Valsamouth at our hospital from January 2016 to December 2017. With upper gastrointestinal endoscopy and the Valsamouth, the oral cavity, oropharynx, larynx, hypopharynx, and esophagus were observed in this order.