An unusual case of unilateral supernumerary extensor carpi radialis muscle

Abstract

An uncommon anatomical variant of muscle that can be considered as a supernumerary extensor carpi radialis muscle was found during the dissection of the forearm region. The identified extensor carpi radialis muscle has origin on the lateral supraepicondylar ridge of the humerus, and an unusual insertion on the tubercle of the scaphoid bone. The presence of this supernumerary muscle may cause diagnostic errors in the forearm region, and can produce a debilitating pain syndrome by secondary compression of adjacent nerves, vessels or tendons due to its course along the anterior compartment of the forearm. (Folia Morphol 2019; 78; 4: 888-892)

Case Report. Diagnostic Challenges: Liver Metastases from Mammary Gland Origin or Cholangiocarcinoma?

“…Dispersed pain and functional impotence are explained in this framework. 19 The PET-CT exam provided additional information, highlighting a lung tumor, which was not highlighted in the other imaging investigations. Spine metastases are most commonly caused by lung or breast tumors.…”

Morphologic and morphometric characteristics of the adductor minimus in Korean: its topographic relationship with respect to neighbouring anatomical structure and clinical significance

“…The limb musculature develops from the paraxial mesoderm, and in the seventh week of development appears as the condensation of mesenchyme near the base of the limb buds [48]. The elongation of the limb buds results in the muscle tissue splitting into flexor and extensor components, which then fuse and form a single muscle mass [50]. In humans, the embryologic development of the adductor group of the thigh is first evident in the proximal region of an 11-mm-long embryo (approximately at a gestational age of early during week 6), with the separation into independent masses for the different muscles of the group.…”