study of median palmar cutaneous nerve involvement in a patient with wrist ganglion

background: few reports represent palmar cutaneous nerve neuropathy in the wrist due to a ganglion cyst. case presentation: a 25-year-old female was presented with a mass at volar side of the wrist and hypoesthesia at the base of thenar eminence. at ulrasonographic examination, a simple cyst was detected. sensory response of palmar cutaneous branch of median nerve was absent at the affected side. treatment: ultrasound guided drainage of the cyst was performed. at 3 months follow up examination, the patient was symptom-free. learned lessons: this case was rare among cases involving palmar cutaneous branch of median nerve due to the wrist ganglion documented by nerve conduction studies (ncs).