Deformation

DEFORMATION (from Latin de- negative particle and formatio-formation), violation of the shape of a part of the body or any organ. Deformation can arise from the most diverse causes and contains no regularities, which are observed, for example, in the development of malformations (see). Thus, deformation of the embryo can arise under the influence of amniotic threads (see Amniotic threads, constrictions, adhesions), which mechanically prevent its proper formation. Deformation can also arise under the influence of some pathological process, for example, deformation of the chest in adults with tuberculosis of the spine, deformation of the skeleton in rickets (see) in children, deformation of joints, etc. The sometimes observed deformation of individual organs arises under the influence of adhesions, as is noted, for example, on the part of the liver with subdiaphragmatic adhesions. Deformation in the most diverse forms can arise in the body under the influence of a traumatic factor. Mention should also be made of the deformation obtained artificially (for example, deformation of the foot in Chinese women). Deformation of cellular elements is observed, for example, in the liver, when in connection with the rapid growth of a cancerous metastasis, the displacement and flattening of liver cells occurs.