Inverted Transitional Cell Papilloma

A benign epithelial neoplasm characterized by an endophytic growth, papillary pattern, and proliferation of neoplastic squamous cells without morphologic evidence of…

A benign neoplasm that arises from the ciliated respiratory mucosa that lines the nasal cavity or paranasal sinuses. It results from…

A type of tumor in which surface epithelial cells grow downward into the underlying supportive tissue. It may occur in the nose…

Animals without a backbone that live in the ocean

Terrestrial animals without back bones

Tissue and cells from the general category of the kingdom Animalia (multicellular animals) including those phyla whose members lack a notochord. …