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Case Reports
. 2010 Jan;1(1):43-5.
doi: 10.4103/0976-3147.63104.

Back bugged: A case of sacral hydatid cyst

Dipak Patel  1 , Dhaval Shukla
Affiliations
Case Reports

Back bugged: A case of sacral hydatid cyst

Dipak Patel et al. J Neurosci Rural Pract. 2010 Jan.

Abstract

Hydatid cyst of bone constitutes only 0.5 - 2% of all hydatidoses. The thoracic spine is the most common site of spinal hydatidoses. Primary hydatid cyst of the sacral spinal canal is rare. A 23-year-old gentleman had back pain five years ago. At that time he was evaluated and found to have a small cyst in S1 spinal canal, which was presumed to be a benign Tarlov's cyst; and no treatment was offered. He continued to have back pain and also developed sciatica on the right side. Neurological examination presently revealed right S1 radiculopathy. Magnetic resonance imaging (MRI) showed a large multiloculated cystic lesion extending from L5 to S2 spinal canal with bone erosion, both anteriorly and posteriorly. He underwent L5 to S2 laminectomy and excision of multiple cysts. The whole cyst was excised and cavity irrigated with sterilized formalin. A laparoscope was introduced in the cavity to look for extension into the pelvis and to confirm complete excision. Postoperatively, the patient received albendazole for two months. At 16 months follow-up the patient was asymptomatic. Hydatid cyst of sacrum is rare and can be missed at initial presentation. If the patient with a cystic lesion of sacral continues to have symptoms the diagnosis should be revaluated and prompt treatment should be offered.

Keywords: Cestode; echinococcus; hydatid; sacrum; spine.

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Conflict of interest statement

Conflict of Interest: None declared.

Figures

Figure 1
Figure 1
MRI T2W, done in 2003 shows a small cystic lesion of sacrum, which was presumed to be Tarlov's cyst
Figure 2
Figure 2
MRI T2W, done in 2007 shows enlargement of previous sacral cystic lesion with heterogeneous intensity and extension into presacral space and spinal canal
Figure 3
Figure 3
Chitinous cyst wall with multiple daughter cysts
Figure 4
Figure 4
MRI T2W done after seven months of surgery shows collapsed cyst. There are no intracystic contents. There is no epidural compression
See this image and copyright information in PMC

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