Acquired dorsal intraspinal epidermoid cyst in an adult female

Abstract

Background:Epidermoid and dermoid cyst comprise <1% of spinal tumors and may be congenital (hamartoma) or acquired (iatrogenic) in origin. Epidermoid cysts within the neuraxis are rare benign neoplasms that are most commonly located in the intracranial region.Case Description:Here, we report the a case of an acquired intradural extramedullary epidermoid cyst involving the thoracic region in an adult female who had no associated history of an accompanying congenital spinal deformity.Conclusion:Early diagnosis and immediate surgical intervention reduce patient morbidity. Near complete or subtotal excision of the cyst wall is warranted to prevent inadvertent injury to the spinal cord thus minimizing neurological morbidity.

Isolated thoracic intradural extramedullary epidermoid cyst: A technical note

“…Congenital lesions with associated cutaneous and/or osseous malformations versus acquired/iatrogenic tumors attributed to invasive spinal procedures or trauma. [ 2 , 4 , 6 , 8 , 11 ] Thoracic EC accounts for <1% of all spinal EC, while the majority occur in the lumbar spine. [ 9 ] Our review of the literature revealed 11 cases of thoracic intradural/extramedullary EC; four cases were isolated, one being reported in an elderly patient [ Table 1 ].…”

Possible Double Crush Syndrome Caused by Iatrogenic Acquired Lumbosacral Epidermoid Tumor and Concomitant Sacral Tarlov Cyst

“…The etiologies of spinal ETs are thought to be both congenital and acquired. Acquired ETs were mostly reported in the region of the cauda equina (below the L1 level) 5 , 13) because lumbar punctures are usually performed around that level. In the present case, she did not exhibit any congenital spinal bone and skin anomaly.…”

Lumbar laminotomy and replantation for the treatment of adult spinal epidermoid cyst

“…Surgery is the preferred treatment for symptomatic lesions. [ 2 , 3 ] Lumbar laminectomy and facetectomy are performed to clearly reveal the spinal tumors. However, total facetectomy and laminectomy often cause postoperative lumbar instability and severe low back pain may persist even in the long term.…”

“…[ 1 ] They are most commonly located in the intracranial region, but can rarely occur in the lumbar spinal canal. [ 2 ] Although epidermoid cyst is a slow-growing benign tumor, there is also a possibility of malignancy. [ 3 , 4 ] Surgical resection of the tumor is the preferred treatment for intramedullary and intradural extramedullary epidermoid cyst.…”

“…[ 3 , 4 ] Surgical resection of the tumor is the preferred treatment for intramedullary and intradural extramedullary epidermoid cyst. [ 2 , 5 ] Lumbar laminectomy and tumor removal was a routine surgical procedure according to the literature, but long-term postoperative lumbar instability or intractable low back pain and other complications may occur. [ 6 ] To reduce the risk of postoperative lumbar instability, we used the ultrasonic bone curette to cut the lumbar spinous process and lamina, and resected the tumor under a microscope.…”