/b/veterinary-news/posts/new-research-identifies-prevalent-lumps-in-guinea-pigs A study conducted by Melanie Dobromylskyj, a histopathologist at CVS-owned Finn Pathologists and RVC student, Rebecca Hederer has identified the most common histopathological diagnoses out of over 600 biopsy samples from guinea pig lumps. Skin diseasesen-USTelligent Community 10