Tonsillar metastasis of signet-ring cell adenocarcinoma of the colon.
Female; Humans; Aged; Biopsy; Colonic Neoplasms/*pathology; Head and Neck Neoplasms/drug therapy/pathology/radiotherapy/*secondary; Terminal Care; Tonsillar Neoplasms/drug therapy/pathology/radiotherapy/*secondary; Carcinoma; Needle; Signet Ring Cell/drug therapy/pathology/radiotherapy/*secondary
Cases of primary colorectal signet-ring cell carcinoma metastatic to the tonsil are extremely rare. To the best of our knowledge, only 4 such cases have been previously reported in the literature. We report a new case in a 76-year-old white woman. She was treated with chemotherapy, but her disease continued to spread and she was eventually placed on comfort care and palliative radiation therapy. The manner in which tonsillar metastases evolve is still unknown, but some hypotheses have been proposed, and we briefly review these theories.
Park Kelly K; Park Youn W
Ear, nose, & throat journal
2010
2010-08
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Noninvasive ventilation.
Chronic Obstructive/*therapy; Continuous Positive Airway Pressure/methods; Critical Care/*methods; Heart Failure/*therapy; Humans; Positive-Pressure Respiration/adverse effects/*methods/trends; Pulmonary Disease; Pulmonary Gas Exchange/physiology; Terminal Care; Ventilator Weaning/*methods
Noninvasive positive-pressure ventilation (NPPV) is the delivery of mechanical-assisted breathing without placement of an artificial airway such as an endotracheal tube or tracheostomy. During the first half of 20th century, negative-pressure ventilation (iron lung) provided mechanical ventilatory assistance. By the 1960s, however, invasive (ie, by means of an endotracheal tube) positive-pressure ventilation superseded negative-pressure ventilation as the primarily mode of support for ICU patients because of its superior delivery of support and better airway protection. Over the past decade, the use of NPPV has been integrated into the treatment of many medical diseases, largely because the development of nasal ventilation. Nasal ventilation has the potential benefit of providing ventilatory assistance with greater convenience, comfort, safety, and less cost than invasive ventilation. NPPV is delivered by a tightly fitted mask or helmet that covers the nares, face, or head. NPPV is used in various clinical settings and is beneficial in many acute medical situations. This article explores the trends regarding the use of noninvasive ventilation. It also provides a current perspective on applications in patients with acute and chronic respiratory failure, neuromuscular disease, congestive heart failure, and sleep apnea. Additionally, it discusses the general guidelines for application, monitoring, and avoidance of complications for NPPV.
Barreiro Timothy J; Gemmel David J
Critical care clinics
2007
2007-04
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
<a href="http://doi.org/10.1016/j.ccc.2006.11.015" target="_blank" rel="noreferrer noopener">10.1016/j.ccc.2006.11.015</a>