Page 345 - Equine Clinical Medicine, Surgery and Reproduction, 2nd Edition

320 CHAPTER 1

VetBooks.ir 1.619 1.620

Figs. 1.619, 1.620 (1.619) Avulsed fragment, forming a sharp interface in the dorsal part of the SL (yellow
arrow). A diffuse, hypoechogenic lesion is present in the parenchyma surrounding the fragment (red arrows).
(1.620) Longitudinal scan of 1.619 (medial parasagittal section). The avulsed fragment (yellow arrow), is
displaced palmarodistally. The SL is hypoechogenic with diffuse loss of fibre alignment. An irregular defect in
the palmar aspect of the third metacarpus, proximal to the fragment, represents the fracture bed (red arrow).

1.621 1.622

Figs. 1.621, 1.622 (1.621) Transverse scan of the proximal metatarsus. In this horse with chronic, proximal
SL desmopathy, the SL is markedly enlarged (arrows). The parenchyma is nearly normal in echogenicity but is
heterogeneous, with poorly demarcated hypo- and hyperechogenic areas. The connective tissue space between
the SL and the DDFT is obliterated. (1.622) Longitudinal scan in the same horse showing diffuse loss of fibre
alignment, with hyperechogenic interfaces mixed with hypoechogenic, finely granular areas. The SL is enlarged
(long double arrow) and convex on the plantar aspect. The fascia (f) is displaced and a diffuse, moderately
echogenic fibrous tissue fills the space (short double arrow).