The term "tubulovillous" refers to a specific type of growth pattern often seen in certain types of tumors, particularly in the gastrointestinal tract. It describes a structure that combines both tubular and villous features. Tubular structures are tube-like, while villous structures have finger-like projections. This combination can be significant in the diagnosis and classification of tumors, especially in relation to their potential for malignancy. In pathology, tubulovillous adenomas are a common example of this growth pattern. These adenomas are precursors to colorectal cancer and are characterized by their mixed architecture. Understanding the tubulovillous nature of these lesions helps medical professionals assess the risk of cancer development and determine appropriate treatment options.