• The medial plantar proper digital nerve (MPPDN) rises from the medial plantar nerve to the medial side of the hallux. • Because of its particularly long course and superficial position, the MPPDN may be subject to trauma, resulting in a condition known as Joplin's neuroma. • The MPPDN can be clearly depicted by ultrasound along its entire course. Precise mapping of its anatomical course may have important clinical applications.
Figure 2. Magnetic resonance image of the left thigh, short-T1 inversion recovery sequence, showing a diffuse thickening and hypersignal of the fasciae that is consistent with active fasciitis (red arrows). Figure 3. Optical microscopy image showing marked inflammatory infiltrate of the fasciae (red arrow) (hematoxylin and eosin; original magnification, Â20).
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