How a polyp biopsy is taken depends on the location: 1  Colonoscopy or flexible sigmoidoscopy explores the large bowel. 2  Colposcopy-directed biopsy examines the vagina and cervix. 3  Esophagogastroduodenoscopy (EGD) or other endoscopy is used for the throat, stomach, and small bowel.  Laryngoscopy is used for the nose and throat.
11 doctors agreed: Several: Possible causes of pink eye (conjunctivitis) include bacterial or viral infection, allergic reaction, rosacea, dry eye, and autoimmune disease.
Pink eye, or conjunctivitis, is a common eye ailment defined as an infection or inflammation of the conjunctiva (the outermost layer of the eyeball), which causes it to becomes red or pink in color. Pink eye can be caused by bacterial infections, viruses, allergies, or contact-lens related problems.ink eye, or conjunctivitis, is a common eye ailment defined as an infection or inflammation of the conjunctiva (the outermost layer of the eyeball), which causes it to becomes red or pink in color. Pink eye can be caused by bacterial infections, viruses, allergies, or contact-lens related problems.