Coronavirus disease-2019 (COVID-19) had become a global pandemic since March 2020.
Although, the most common presentation is of pulmonary involvement, hepatic abnormalities …

With the high prevalence of coronavirus disease-2019 (COVID-19), there has been
increasing understanding of the pathologic changes associated with the severe acute …

(1) Background: Chronic rhinosinusitis with nasal polyps (CRSwNP) is one of the most
studied rhinological disorders. Modifications of the respiratory nasal mucosa in COVID-19 …

The emergence of the novel SARS-CoV2 virus, proclaimed by the World Health
Organization (WHO) as a culpable agent for the pandemic situation, caught the scientific and …

The novel coronavirus pandemic of COVID-19 has emerged as a highly significant recent
threat to global health with about 600,000,000 known infections and more than 6,450,000 …

Acute esophageal necrosis (AEN) is a rare endoscopic finding associated with ischemic
compromise of the distal esophagus. This finding can be seen in critically ill patients with …

Although the novel severe acute respiratory syndrome coronavirus-2 is known primarily to
affect the respiratory system, current evidence supports its capability to infect and induce …

Black esophagus or acute esophageal necrosis (AEN) is a rare cause of upper
gastrointestinal (UGI) bleeding usually involving distal esophagus. Proximal esophageal …

Acute esophageal necrosis is a rare condition, characterized by a distinctive
endoscopic/necropsic image–circumferential black area of the esophagus. This paper …

A 76-year-old man with a history of hypertension and chronic kidney disease presented with
COVID-19 infection, hyperactive delirium, acute kidney injury, and hypotension. He …