Karl Kreibich (dermatologist) works was a textbook on skin diseases titled ""Lehrbuch der hautkrankheiten"", and three papers on lupus pernio. In 1904 he provided the first description of bone cysts in sarcoidosis. Karl Kreibich (dermatologist) Karl Kreibich (20 May 1869 – 30 December 1932) was an Austrian dermatologist born in Prague. In 1894 he obtained his doctorate from the German Medical Faculty at Prague, and performed his postgraduate studies in Vienna. At Vienna he spent six years as an assistant to dermatologist Moritz Kaposi (1837-1902). In 1903 he succeeded Adolf Jarisch (1850–1902) as head of the dermatology clinic at the University of Graz,
Supernumerary body part considered to have lost much or all of their original function through evolution. These body parts can be classed as additional to the required functioning of the body. In human anatomy the vermiform appendix is sometimes classed as a vestigial remnant. Prosthesis is an artificial extension that replaces a body part, and cybernetics is the study of computer technology in relation to organisms which can include replacement or additional body parts. Body integrity identity disorder (BIID) is a psychiatric disorder in which a person thinks that they have one or more additional limbs than they should, despite having two arms