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!: Lots of reasons for pink eye or red eye. Infections, both viral & bacterial, are common causes of conjunctivitis. Patients typically complain of an irritation, sometimes gritty, sometimes burning, often w/purulent discharge such that their lids are glued shut in the morning & crusted over. Visual acuity should not be affected.