Membranous nephropathy with Neuromyelitis optica spectrum disorder.

Membranous nephropathy (MN) accompanying Neuromyelitis optica spectrum disorders (NMOSD) has rarely been described previously. We recently presented a 45-year-old Chinese male presenting with recurrent lower extremity pitting edema, or eyelid edema, proteinuria and hyperlipidemia. especially intractable hiccup and vomiting, painful tonic spasm (PTS) as the revealing symptom of a demyelinating disorder of central nervous system. The kindey biopsy specimen showed MN stage 2. Serological testing revealed antibodies AQP4, MRI head and spine revealed medulla oblongata and C1-C2 cervical vertebra lesions. Treatment with methylprednisolone, cyclophosphamide, azathioprine resulted in consistent clinical improvement.