A case report by Hong et al. [1], entitled “Successful treatment of abdominal cutaneous entrapment syndrome (ACES) using ultrasound guided injection,” underlined the importance of the differential diagnosis of non-visceral pain and pain originating from visceral organs in properly treating chronic abdominal pain. A recent investigation found that ACES was present in 3.6% of patients diagnosed with functional abdominal pain [2]. The case also raised an unanswered question about what differences exist between nerve entrapment and myofascial pain with regard to pathomechanisms and treatment.