Members of the DEWS Definition and Classification. Subcommittee developed a contemporary definition of dry eye disease and a three-. part classification system based on etiology, causative mechanisms and disease. severity.
Metaplasia. Definition: Metaplasia is the reversible replacement of one differentiated cell type with another differentiated cell type. Metaplasia causes precursor cells to change their cell fate, and do not change existing differentiated cells.he most common epithelial metaplasia is columnar to squamous (squamous metaplasia), as occurs in the respiratory tract in response to chronic irritation.
Plantar Fibromatosis. Plantar fibromatosis is a benign tumor specific to the plantar fascia. Plantar fibromatosis presents with firm, subdermal bumps, or nodules, that are found within the plantar fascia. The onset of plantar fibromatosis varies with each patient. The plantar fibromatosis nodules are slow growing and vary in size and location.