A Bursa Neuroma complex describes the phenomenon whereby both of these entities coexist in the symptomatic forefoot.

Further reading here:

https://onlinelibrary.wiley.com/doi/10.7863/ultra.15.11022

Ulnar Neuropathy.

Is the point of compression at the elbow or at the wrist?

High ulnar nerve compression will involve the dorsal cutaneous branch of the ulnar nerve and cause sensory abnormalities over the dorsal-medial wrist. Low ulnar nerve compression will not have de-innervation to the long...

A schwannoma is a benign nerve sheath tumour. On ultrasound they're generally eccentric to the nerve, are ovoid in shape, homogeneous (but can become heterogeneous as they enlarge) and display some internal vascularity.

See link below for a short article on the topic.

Ultrasonographic and...