- Discussion:
- two fat planes on
lateral view & 5 fat planes on
PA view
are useful for analysis;
- deep fat pad of
pronator quadratus (lateral view), which
lies between the pronator quadratus muscle and the flexor tendon
sheaths, normally forms a slight ventral concave line and is
convexly bowed in a ventral direction or completely absent under
pathologic conditions;
- second fat plane seen on
lateral view is dorsal skin
subcutaneous fat line overlying dorsal hand, wrist, and forearm;
- under normal conditions, it is a flat or dorsal concave line (at
level of the wrist), and is considered to be abnormal when
convex in a dorsal direction;
