Normal squamous cells<unk> plastic cells<unk>  is any of various types of abnormal growth or development of cells (microscopic scale) or organs (macroscopic scale), and the abnormal histology or anatomical structure resulting from such growth.<unk> s on a mainly microscopic scale include epithelial<unk>  and fibrous<unk>  of bone.<unk> s on a mainly macroscopic scale include hip<unk> , myelodysplastic syndrome, and multicystic<unk> plastic kidney. In one of the modern histopathologic senses of the term,<unk>  is sometimes differentiated from other categories of tissue change including hyperplasia, metaplasia, and neoplasia, and<unk> s are thus generally not cancerous. An exception is that the myelodysplasias include a range of benign, precancerous, and cancerous forms. Various other<unk> s tend to be precancerous. The word's meanings thus cover a spectrum of histopathologic variations.
Dysplasia
Hyperplasia
Anaplasia
Atrophy
Metaplasia
Hypertrophy
Hypoplasia
Degeneration 