... Megasphaera, Leptotrichia, Eggerthella, and Dialister. Figure 124- 2 Chapter 124. Sexually Transmitted Infections: Overview and Clinical Approach (Part 9) Bacterial Vaginosis This syndrome ... S Hillier et al, in KK Holmes et al (eds). Sexually Transmitted Diseases, 4th ed. New York, McGraw-Hill, 2008.] (formerly Bacteroides spp.), and some Peptostreptococcus spp.] as well as ... KOH; and (4) microscopic demonstration of "clue cells" (vaginal epithelial cells coated with coccobacillary organisms, which have a granular appearance and indistinct borders; Fig. 124- 3)...