Hypopharyngeal Diffuse Large B-Cell Lymphoma in a 74-Year-Old Man Presenting with Dysphagia: A Case Report.

BACKGROUND Malignant lymphomas can occur at various sites. Hypopharyngeal tumors are at risk for airway obstruction and require rapid diagnosis and treatment. Most hypopharyngeal malignancies are squamous cell carcinomas; other tumors are rare. To date, only a few cases of malignant hypopharyngeal lymphoma have been reported, and its specific characteristics are unknown. Herein, we report a case of right hypopharyngeal diffuse large B-cell lymphoma (DLBCL) in a 74-year-old man with dysphagia. CASE REPORT A 74-year-old man presented to our hospital with dysphagia. He had no relevant medical history. Endoscopic examination revealed a right hypopharyngeal tumor. The surface of the tumor was smooth, with no evidence of hemorrhage. Computed tomography revealed a 40-mm mass located in the hypopharynx. We performed a tracheotomy and biopsy of the tumor. Histopathological examination revealed a diffuse proliferation of large atypical B cells with negative staining for Epstein-Barr virus by in situ hybridization. Immunohistochemical staining was positive for CD20 but negative for CD3 and CD10. The patient was administered chemotherapy. The tumor reduced in size, and the patient recovered completely. During the two-year follow up, no recurrence of cancer was observed. CONCLUSIONS Although most hypopharyngeal tumors are squamous cell carcinomas (SCCs), the possibility of other types of tumors should also be considered. Malignant lymphoma of the hypopharynx is rare, and more cases need to be studied and reported in the future.

Cervical Emphysema and Pneumomediastinum Caused by a Nasogastric Tube: A Case Report.

BACKGROUND The nasogastric tube (NGT) is a common medical device, and serious complications associated with NGT insertions are rare. The most common serious complication is tracheal insertion; cervical emphysema and pneumomediastinum are rare. There are several methods for confirming the location of the NGT, but a single method of confirmation is often inadequate. Confirmation by air insufflation into the NGT is currently not recommended and is highly invasive. Here, we report a case of cervical emphysema and pneumomediastinum caused by an NGT. CASE REPORT A 94-year-old woman experienced a stroke and was hospitalized for neurosurgery. The nurse inserted an NGT and performed insufflation, but air sounds were not detected. Chest radiography did not reveal the tip of the NGT. Computed tomography (CT) revealed cervical emphysema, pneumomediastinum, an NGT bent in the esophagus, and the distal end of the NGT in the nasopharynx. Nasopharyngeal endoscopy revealed damaged nasopharyngeal mucosa and the distal end of the NGT. The patient was diagnosed with insufflated air passing through the damaged nasopharynx, which had spread to the cervical area and mediastinum. The NGT was removed, and the patient was treated with antibiotics. CT showed cervical emphysema, and the pneumomediastinum resolved after 20 days. CONCLUSIONS It is important to recognize that there are numerous serious and unexpected complications associated with NGT. Different methods should be considered and used to confirm the location of an NGT. Further studies on the confirmation methods and dissemination of such knowledge are required to reduce NGT complications.

Stapes Bar-Normal Stapedial Superstructure with a Mobile Footplate Fixed to the Promontory.

This report describes a case of stapedial superstructure fixation with a mobile footplate, which is a rare occurrence among the ossicular malformations that cause conductive hearing impairment. A 44-year-old man with symptoms of left-sided hearing impairment since childhood presented to our department. The eardrum was normal, and pure tone audiometry showed conductive hearing impairment with a three-frequency (500, 1000, and 2000 Hz) mean of 53.3 dB and a normal tympanogram result. An abnormal shadow was observed on the internal side of the left stapes during the three-dimensional reconstruction of computed tomography. We suspected a stapes malformation and performed an exploratory tympanotomy with transcanal endoscopic ear surgery. We found a bony bar between the superstructure of the stapes and the promontory. The mobility of the stapes was significantly improved by removing the bony bar. Findings of postoperative audiometry were normal after surgery. The treatment of such cases of stapedial fixation is simple, and the prognosis of hearing gain after surgery is quite good. Thus, regarding the treatment of patients with conductive hearing impairment, clinicians and surgeons should be aware of the possibility of single stapedial superstructure fixation.

Central-part laryngectomy after laryngotracheal separation to manage pharyngocutaneous fistula: A case report and retrospective analysis of 12 cases.

A 15-year-old girl presented with a 3-year-history of continuous outflow of saliva from a pharyngocutaneous fistula, located at 5 mm superior to her tracheal stoma. She was diagnosed with Miller-Dieker syndrome at birth. At 2 years of age, pediatric surgeons at our institution carried out laryngotracheal separation to prevent aspiration pneumonia. At the age of 12 years, she developed continuous saliva discharge from the fistula. We performed central-part laryngectomy and resection of the pharyngocutaneous fistula, which relieved her from the continuous saliva discharge. Central-part laryngectomy is less invasive and easier to perform than total laryngectomy. We hereby present a case and retrospective analysis of 12 patients, who underwent central-part laryngectomy.

Removal of Coin Cell Lithium Battery Lodged in the Pediatric Pharyngoesophageal Junction by Rigid Esophagoscopy; a Case Report.

A coin cell lithium battery is a common foreign body that can become lodged in the pediatric pharyngoesophageal junction. Because the voltage of such batteries is relatively high, their rapid removal is necessary to avoid mucosal necrosis. Despite being the initial choice for removal, flexible endoscopy cannot remove such foreign bodies from the esophagus. Various removal methods, including rigid esophagoscopy, should be considered for removing lithium coin cell batteries. The transcervical approach is feasible for removing esophageal foreign bodies, but it carries the risk of complications such as esophageal stenosis. Here we report a case of lithium coin battery ingestion that was successfully removed using a rigid esophagoscope. A 2-year-old girl was referred to a local doctor with cough and general fatigue. Chest X-ray and flexible endoscopy revealed a coin cell lithium battery stuck in the pharyngoesophageal junction, but it could not be removed. The foreign body was removed using Nishihata forceps through a rigid esophagoscope under general anesthesia.