Basal cell carcinoma and squamous cell carcinoma are the two most common types of non-melanoma skin cancer. These cancers begin in different layers of the skin. Squamous cell carcinoma starts in the ...

(a) Diagnosed with achalasia; (b) Underwent peroral endoscopic myotomy (POEM) surgery for achalasia; (c) Severe reflux symptoms 23 months later; (d) Esophageal squamous cell carcinoma located 25 cm ...

WASHINGTON -- President Joe Biden's doctor said Friday that a lesion removed from the president's chest last month was basal cell carcinoma, a common type of skin cancer. Dr. Kevin O'Connor wrote in a ...