A Chinese man who made headlines last July when he was diagnosed with a 33-pound facial tumor is undergoing his second surgery Monday, according to the Australian Broadcasting Corp.

Huang Chuncai's facial tumor became noticeable when he was 4-years-old. It grew bigger and more quickly as he grew older, blocking his left eye, pushing his left ear to shoulder level, knocking out his teeth and deforming his backbone. The 31-year-old has trouble speaking, hearing and eating. He has spent most of his adult life in isolation in an effort to avoid public ridicule.

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Huang, a native of Hunan in southern China, suffers from neurofibromatosis, a genetic disorder of the nervous system that primarily affects the development and growth of nerve tissues.

In July, 10 doctors operated on Huang, whittling his tumor down to about 22 pounds. Surgeons hoped to remove a 9.9-pound section of the tumor in Monday's operation at Fuda Hospital in southern China.