title: Fascicular Involvement of the Posterior Tibial Nerve as a Result of Perineural Ganglion Cyst at the Posterior Tibial Nerve in the Calf: A Case Report and Review of Literature.
abstract: We report a 19-year-old woman with a 6-month history of nontraumatic left foot numbness associated with intermittent weakness. Nerve conduction studies and electromyography localized the lesion to the posterior tibial nerve, below the innervation to the soleus and medial gastrocnemius muscles. MRI of the left leg revealed a multiloculated cystic collection near the proximal tibiofibular joint. Surgical excision and pathology confirmed the diagnosis of a ganglion cyst, in an atypical location distal to the popliteal fossa. We believe this is the first reported case of fascicular posterior tibial nerve involvement by a ganglion cyst in the calf.
authors.affiliation: *Department of Neurology, Cushing Neuroscience Institute, NSLIJ Health System, Manhasset, NY; and †Department of Neurosurgery, Cushing Neuroscience Institute, NSLIJ Health System, Manhasset, NY.
authors.forename: Chilvana
authors.initials: C
authors.lastname: Patel
authors.forename: Surya Murthy
authors.initials: SM
authors.lastname: Vishnubhakat
authors.forename: Raj
authors.initials: R
authors.lastname: Narayan
mesh_terms: D004576:Electromyography; D005260:Female; D045888:Ganglion Cysts / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007866:Leg / Q000294:innervation; D008279:Magnetic Resonance Imaging; D013979:Tibial Nerve / Q000503:physiopathology*; D055815:Young Adult