This study contributed to the understanding of the diversity of ciliated protists in Brazil, since this is the first work in the Southern region of Minas Gerais.
It is difficult to differentiate multi-flagellated protozoa from ciliated bronchial epithelial cells, and this situation causes a significant risk of misidentification under light microscopy.
The spiral cleavage, musculature (Slyusarev and Starunov, 2016), and fine structure of ciliated cells and ciliary rootlets (Slyusarev and Kristensen, 2003) of Orthonectida show similarities to those of annelids; therefore, it has been suggested that they be a member of the Protostomia.
Other features like cytological atypia, tumour arising within cyst lining, foamy macrophages, Rushton bodies, Russel bodies, ciliated cells and necrosis and were not found in any of the selected samples.
All known BBS proteins have been found to play an important role in ciliated cells with their function most commonly localized to the basal bodies of the primary cilium.
It includes cystic cavities lined by a ciliated respiratory epithelioma, a gastric mucosa surrounded by soft muscle bundles, a regular Malpighian epithelioma, a mature nervous tissue, pancreatic tissue, and hepatic tissue (Figure 5).