Illustrated Encyclopedia of Human Anatomic Variation: Opus IV: Organ Systems
Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD
Peer Review Status: Internally Peer Reviewed
An extension of the extremeity of the left lobe of the liver, in an 81-year-old specimen, was found to curve over the spleen and attach to the posterior abdominal wall and diaphragm. Termed appendix fibrosa hepatis, it is a remnant of a larger organ (relatively) in fetal life. In the fibrous protion of the appendix, the bile ducts of the atrophied liver tissue are said to persist as vasa aberrantia hepatis. The appendix is variable in composition as well as in length. Since this specimen contained viable liver tissue the organ is named a "beaver-tail" liver.
Dissecting room specimen, The Unversity of Iowa College of Medicine.
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