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.
According to Dr. Alan Kozarsky on WebMD, pink eye causes thick mucus in the eye after sleep, a burning sensation in the eye, and possibly blurred vision due to the excess mucus on the surface of the eye. 3 There are various types of eye inflammation that cause a thick discharge to appear in the eye and become crusty. Viral conjunctivitis.