Extraskeletal Ewing's sarcoma of supraglottis: A rare case report.

Ewing's Sarcoma family of tumors is a group of small round tumor cells. Ewing's sarcoma majority occurs in bone, accounts about 10 % of primary bone tumors. Extraskeletal Ewing's sarcoma (ESS) is unusual and commonly seen in trunk, paravertebral, and chest wall region.

Impact of radical dose escalation by endoluminal brachytherapy and induction chemotherapy in the definitive treatment of locally advanced esophageal cancer - A retrospective study.

Background: The loco-regional recurrence rate remains the main concern in the treatment of esophageal cancer. However, there are controversial data regarding the benefit of dose escalation in the treatment of esophageal cancer. The study examines the implications of dose escalation with endoluminal brachytherapy after induction chemotherapy and definitive chemoradiation in cases of carcinoma esophagus.

Oxygen-induced hypercapnia: physiological mechanisms and clinical implications.

Oxygen is probably the most commonly prescribed drug in the emergency setting and is a life-saving modality as well. However, like any other drug, oxygen therapy may also lead to various adverse effects. Patients with chronic obstructive pulmonary disease (COPD) may develop hypercapnia during supplemental oxygen therapy, particularly if uncontrolled.

SARS-CoV-2 variants of concern: a review.

The virus that causes severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) belongs to the genus Beta coronavirus and the family Coronaviridae. The SARS-CoV-2 virus is a positive sense, non-segmented single-strand RNA virus that causes coronavirus disease 2019 (COVID-19), which was first reported in December 2019 in Wuhan, China. COVID-19 is now a worldwide pandemic.