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.
conjunctivitis commonly known as pink eye may be caused by viruses bacteria or allergens it infects or inflames the transparent membrane lining the eyelid and covering the white part of the eyeballbabies can also develop pink eye from a tear duct that is not yet completely openedymptoms of pink eye include redness itching swelling of the eyelids and a gritty or scratchy feeling in the eye crusting on the eyelids or lashes discharge and increased light sensitivity viral or bacterial conjunctivitis is very contagious while allergic conjunctivitis is not