Sacral cyst

Canal cysts are spinal cysts and originate from the spinal cord capsule. Therefore, "intraspinal meningeal cysts" are collectively referred to as such diseases. There is no exact statistics on the incidence of sacral cysts in the population. Since the widespread use of magnetic resonance imaging in clinical practice, the detection rate of sacral cysts has become higher and higher, causing great concern for patients. In fact, understanding the causes and treatment of sacral cysts can greatly reduce this concern. Sacral cysts are a type of meningeal cysts that are broadly divided into Nabors IB and Nabors II. Most patients with epidural spinal cysts that do not contain spinal nerve root fibers are asymptomatic, and 25% of patients with epidural spinal cysts that contain spinal nerve root fibers have symptoms. Inside the sacral canal, there are sensory and motor nerves that innervate the saddle area, dorsal thighs, and perineal area, as well as parasympathetic nerve fibers that innervate urine. Therefore, the clinical manifestations of sacral cysts are mainly chronic pain and discomfort in the lower back, sacral tail and perineum. It can also be accompanied by back thigh pain, sciatica, and even neurogenic claudication. Sacral cysts are common, and most are asymptomatic. Generally, asymptomatic patients do not need to be treated and can be observed first. Symptomatic patients should be actively treated on the premise of excluding disc herniation, spinal canal stenosis, or tumors in the sacral canal.