Two Different Tracts and Origin of Pyriform Sinus Fistula.

Objective: Suppurative acute thyroiditis is caused by pyriform sinus fistula (PSF), and PSF frequently elicits deep neck abscess. However, complete fistulectomy is the ideal management of PSF, and studies on surgical findings of PSF are exceedingly rare. This study aimed to reveal the origins of PSF, each route, and clinical presentation.

A case of pyriform sinus fistula infection with double tracts.

Pyriform sinus fistula is a rare clinical entity and the precise origin remains controversial. The fistula is discovered among patients with acute suppurative thyroiditis or deep neck infection of the left side of the neck and is usually located in the left pyriform sinus. To the best of our knowledge, only a single tract has been reported to be responsible for pyriform sinus fistula infection.

Subglottic Schwannoma: a report of a rare case that was treated with medial thyrotomy.

We present a rare case of primary subglottic schwannoma in a 51-year-old man. He presented with subacute dyspnea and progressively worsening stridor. Videoendoscopy revealed the presence of a submucosal mass in the subglottic area, which measured 2 cm in diameter and had occluded approximately 80% of the lumen.

Improvement of tracheal flap method for laryngotracheal separation.

Objectives/hypothesis: Recurrent pneumonia due to intractable aspiration is a life-threatening disease. A tracheal flap method for children without previous tracheostomy has been previously reported. This study reports that improvements of this method and its three subtypes are widely applicable to patients with various conditions.

A new and less invasive procedure for arytenoid adduction surgery: endoscopic-assisted arytenoid adduction surgery.

Objectives/hypothesis: Arytenoid adduction (AA) is the most effective procedure for improving voice function in patients affected by unilateral vocal fold paralysis (UVFP), but it is often associated with severe complications following airway obstruction. The aim of this study is to describe a new and less invasive AA surgical procedure termed endoscopic-assisted AA surgery (EAAS) and to evaluate its voice outcomes.

Study Design: We demonstrated this method using extirpated larynges from three laryngeal cancer patients.

Angiotensin II receptor blocker-induced angioedema in the oral floor and epiglottis.

We report the rare case of angioedema (also known as Quincke edema), which was induced by valsartan, an angiotensin II receptor blocker (ARB). ARBs are a new class of antihypertensive agent that is developed to exclude the adverse effects of angiotensin-converting enzyme inhibitors. In theory, ARBs do not contribute to the occurrence of angioedema because they do not increase the serum level of bradykinin, the responsible substance for angioedema.

Simple and new surgical procedure for laryngotracheal separation in pediatrics.

Objectives: In children with severe physical and mental disabilities who repeatedly develop aspiration pneumonia due to intractable aspiration, laryngotracheal separation/tracheoesophageal anastomosis or laryngotracheal separation has been performed in many institutions for the prevention of aspiration, and good results have been reported. However, families sometimes show a marked reluctance to give consent to these surgical techniques because of tracheal transection. A purpose of this study is to evaluate a new surgical procedure for laryngotracheal separation without tracheal transection.

Congenital laryngeal anomalies presenting as chronic stridor: a retrospective study of 55 patients.

Objectives: Congenital laryngeal anomalies are less frequent, but their causes are surprisingly variable. In addition, a variety of synchronous airway lesions as well as comorbidities are accompanied. The objective of this study was to review of patients with congenital laryngeal anomalies presenting as chronic stridor in our experiences.

Successful video-assisted mediastinoscopic drainage of descending necrotizing mediastinitis.

Descending necrotizing mediastinitis is an uncommon form of mediastinitis that can rapidly progress to septacemia. To date, the optimal surgical approach has remained controversial. We report a case of descending necrotizing mediastinitis that was treated successfully through a transcervical approach with video-assisted mediastinoscopy.

Mucocele in an Onodi cell with simultaneous bilateral visual disturbance.

The Onodi cell is a large pneumatized posterior ethmoid cell and closely related to optic nerve. We present an extremely rare case of retrobulbar optic neuropathy caused by mucocele in an Onodi cell. A 79-year-old man complained of headaches and simultaneous bilateral visual disturbance.

[Inflammatory pseudotumor arising in the ethmoid sinus: a case report].

Inflammatory pseudotumors are rare and are characterized by solitary, demarcated lesions with numerous inflammatory cells, mesenchymal cells, and collagenous fibers. They usually occur in the lung, but have also been reported in the thyroid gland, pleura, liver, kidney, bile duct, spinal cord, testis, and soft tissues. Since inflammatory pseudotumors of the head and neck are very rare, their clinical and radiological features, prognosis, and therapeutic management have never been clearly described.

Congenital arhinia: a case report and functional evaluation.

Objectives: Congenital arhinia is rare clinical entity. An unusual case of congenital arhinia with no surgical treatment is presented.

Study Design: Case report.