Thoracic spinal extradural arachnoid cyst: A case report and literature review

Marrone, Salvatore; Kharbat, Abdurrahman F.; Palmisciano, Paolo; Umana, Giuseppe Emmanuele; Haider, Ali S; Iacopino, Domenico Gerardo; Nicoletti, Giovanni Federico; Scalia, Gianluca

doi:10.25259/sni_89_2022

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…[ 7 ] Most are found in the thoracic spine in intradural locations followed by extradural sites. [ 6 ] They may also be encountered in the ventral, lumbar, or cervical spinal canals. MRI and CT scan can be considered the gold standard to evaluate and differentiate these lesions from tumors or infection, and symptoms depend largelyon their locations.…”

Section: Discussionmentioning

confidence: 99%

Case of incidental thoracic spinal dumbbell hemorrhagic arachnoid cyst and tentorial metastasis from breast carcinoma

Scalia

Costanzo

Silven

et al. 2023

Surgical Neurology International

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Background: Spinal arachnoid cysts (SACs) in adults are typically acquired dural defects following trauma, inflammation, or infection. Brain metastases from breast cancer account for 5–12% of all CNS metastases and are mostly leptomeningeal. Here, the authors reported a 50-year-old female treated for a tentorial metastasis from breast carcinoma that underwent chemotherapy and radiotherapy. Three months later, she presented with a thoracic spinal extradural dumbbell hemorrhagic arachnoid cyst. Case Description: A 50-year-old female underwent a left retrosigmoid suboccipital craniectomy for microsurgical removal of a tentorial metastasis attributed to poorly differentiated breast carcinoma (i.e., comedonic pattern). The patient subsequently underwent both chemotherapy and radiotherapy for accompanying bony metastases. Three months later, she experienced the onset of severe posterior thoracic pain. When the thoracic magnetic resonance imaging revealed a hyperintense “dumbbell” extradural T10–T11 lesion, she underwent a T10–T11 laminectomy for marsupialization and excision of the hemorrhagic lesion. The histological examination revealed blood and arachnoid tissue within a benign SAC, without accompanying tumor. Her postoperative course was uneventful, and she was discharged on postoperative day 3. Conclusion: A 50-year-old female underwent a left retrosigmoid suboccipital craniectomy for removal of a tentorial metastasis from breast carcinoma, followed by radiation/chemotherapy. Three months later, she hemorrhaged into an MR-documented T10–T11 dumbell extradural SAC that was successfully treated with laminectomy, marsupialization, and excision.

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Section: Discussionmentioning

confidence: 99%

Case of incidental thoracic spinal dumbbell hemorrhagic arachnoid cyst and tentorial metastasis from breast carcinoma

Scalia

Costanzo

Silven

et al. 2023

Surgical Neurology International

Self Cite

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“…Patients may remain asymptomatic until su cient expansion of the arachnoid cyst compresses the neural elements [28]. Additionally, the location of the cyst perhaps in uences the clinical presentation [29]. Whenever a SEDAC is discovered in a symptomatic patient, it must be determined if there is a better explanation for symptoms and whether the cyst can cause of the symptoms.…”

Section: Discussionmentioning

confidence: 99%

Clinical and imaging features of spinal extradural arachnoid cysts: a retrospective study of 50 cases

et al. 2022

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Spinal extradural arachnoid cysts (SEDAC) are thought to arise from leakage of CSF through a spinal dural defect. This study investigates the demographics and imaging spectrum of SEDACs at our academic institution and compares them with those reported in the literature. Material and MethodsFifty cases with documented MRI diagnosis of SEDAC, Nabors criteria type I meningeal cyst (MC), were identi ed from retrospective review of imaging records between 1999 to 2020. Patient demographics, presenting symptoms, cyst characteristics, and management outcomes studied. Statistical analysis to determine associations between maximum cyst size and presenting symptoms along with other imaging ndings. ResultsIn all 50 subjects, SEDACs were solitary (single) and sporadic (non-familial). The majority were incidental (62%), located posteriorly (92%) and laterally (80%) in the thoracic and thoracolumbar regions (34%, 30%). They were associated with mild mass effect upon the thecal sac (50%) and bone remodeling (92%). Among symptomatic SEDACs, back pain and radiculopathy were the most reported (68%). Larger cysts were located caudally in the spinal canal, and were associated with greater thecal mass effect, bone remodeling, and septations. Four out of six subjects who underwent surgical management had complete or partial remission. One had cyst recurrence. ConclusionIn this largest series of SEDACs, most were discovered incidentally, stable over time, and located in the thoracic spine dorsal to the thecal sac. When symptomatic, back pain and radiculopathy were the most common presenting symptoms. Treatment with complete surgical excision may yield the best results for symptomatic lesions.

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Paraplegia caused by a dural-dissection cyst with contracture band formation: A case report

Gao,

Ma,

Zhou

2024

Asian Journal of Surgery

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Thoracic spinal extradural arachnoid cyst: A case report and literature review

Cited by 4 publications

References 7 publications

Case of incidental thoracic spinal dumbbell hemorrhagic arachnoid cyst and tentorial metastasis from breast carcinoma

Case of incidental thoracic spinal dumbbell hemorrhagic arachnoid cyst and tentorial metastasis from breast carcinoma

Clinical and imaging features of spinal extradural arachnoid cysts: a retrospective study of 50 cases

Paraplegia caused by a dural-dissection cyst with contracture band formation: A case report

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