Treatment of obstructive pneumatosis coli with endoscopic sclerotherapy: report of a case. The case of an 86-year-old man with cardiac and pulmonary failure, in whom pneumatosis cystoides intestinalis caused segmental obstruction of the sigmoid colon is described. The patient was treated with endoscopic puncture and sclerotherapy of the cyst walls in four sessions, giving endoscopic and radiologic regress of the lesions and symptomatic relief. 