Isolated posterior antebrachial cutaneous (PABC) neuropathy is rare. A 62 year-old man presented with hypesthesia over the skin region of PABC nerve territory after an injection at the proximal to the lateral epicondyle. Antidromic sensory nerve conduction studies of PABC nerve was not evoked on the affected side. Our case showed that sensory nerveconduction of PABC nerve can be performed without much difficulty and that this test is useful in confirming PABC neuropathy.
