A Diskogenic Dural Defect is the Reason for the Ventral Location of the Epidural Spinal Fluid Collection Seen in Superficial Siderosis

2021 ◽  
pp. 10.1212/CPJ.0000000000001085
Author(s):  
Neeraj Kumar
Keyword(s):  
Fluid Collection ◽  
Initial Point ◽  
Spinal Fluid ◽  
Superficial Siderosis ◽  
Low Grade ◽  
Dural Defect ◽  
Dynamic Ct ◽  
Contrast Extravasation ◽  
Recent Developments ◽  
Dural Defects

AbstractPurpose of reviewSuperficial siderosis (SS) of the nervous system is often due to a dural pathology. This review focuses on recent developments related to the management of this subgroup of SS patients.Recent findingsThe presence of an epidural ventral spinal fluid collection in patients with SS is a clue to the presence of a diskogenic dural defect. The location of the defect is ascertained by a dynamic CT-myelogram which involves placing the patient in a prone position with hips elevated. This permits gravity assisted preferential ventral localization of the contrast and active scanning during contrast injection facilitates a precise delineation of the initial point of contrast extravasation which localizes the defect.SummaryDiskogenic dural defects are commonly the underlying etiology for SS in patients with a ventral spinal fluid collection. A dynamic CT-myelogram facilitates detection and subsequent repair of these defects which arrests the continued low-grade subarachnoid bleeding.

Dural closure for the treatment of superficial siderosis

2013 ◽  
Vol 18 (4) ◽  
pp. 388-393 ◽  
Author(s):  
Satoru Egawa ◽  
Toshitaka Yoshii ◽  
Kyohei Sakaki ◽  
Hiroyuki Inose ◽  
Tsuyoshi Kato ◽  
...  
Keyword(s):  
Present Report ◽  
Fluid Collection ◽  
Clinical Manifestations ◽  
Fat Grafting ◽  
Neurological Deficits ◽  
Superficial Siderosis ◽  
Dural Defect ◽  
Dural Closure ◽  
Csf Leakage ◽  
Dural Defects

Superficial siderosis (SS) of the CNS is a rare disease caused by repeated hemorrhages in the subarachnoid space. The subsequent deposition of hemosiderin in the brain and spinal cord leads to the progression of neurological deficits. The causes of bleeding include prior intradural surgery, carcinoma, arteriovenous malformation, nerve root avulsion, and dural abnormality. Recently, surgical treatment of SS associated with dural defect has been reported. The authors of the present report describe 2 surgically treated SS cases and review the literature on surgically treated SS. The patients had dural defects with fluid-filled collections in the spinal canal. In both cases, the dural defects were successfully closed, and the fluid collection was resolved postoperatively. In one case, the neurological symptoms did not progress postoperatively. In the other case, the patient had long history of SS, and the clinical manifestations partially deteriorated after surgery, despite the successful dural closure. In previously reported surgically treated cases, the dural defects were closed by sutures, patches, fibrin glue, or muscle/fat grafting. Regardless of the closing method, dural defect closure has been shown to stop CSF leakage and subarachnoid hemorrhaging. Successfully repairing the defect can halt the disease progression in most cases and may improve the symptoms that are associated with CSF hypovolemia. However, the effect of the dural closure may be limited in patients with long histories of SS because of the irreversibility of the neural tissue damage caused by hemosiderin deposition. In patients with SS, it is important to diagnose and repair the dural defect early to minimize the neurological impairments that are associated with dural defects.

Superficial siderosis associated with an iatrogenic posterior fossa dural leak identified on CT cisternography

2021 ◽  
pp. 197140092110428
Author(s):  
Ajay A Madhavan ◽  
Christopher P Wood ◽  
Allen J Aksamit ◽  
Kara M Schwartz ◽  
John L Atkinson ◽  
...  
Keyword(s):  
Posterior Fossa ◽  
Chiari I Malformation ◽  
Superficial Siderosis ◽  
Low Grade ◽  
Dural Defect ◽  
Ct Cisternography ◽  
Hemosiderin Deposition ◽  
Dural Leak ◽  
Chiari I ◽  
Dural Tears

Superficial siderosis refers to hemosiderin deposition along the pial surface of the brain and spinal cord. It results from chronic and repetitive low-grade bleeding into the subarachnoid space. Dural tears are a common cause of superficial siderosis. Although such tears typically occur in the spine, dural tears can also occur in the posterior fossa. In many cases, posterior fossa dural tears are iatrogenic, and patients may present with neuroimaging evidence of postoperative pseudomeningoceles. We present a case of superficial siderosis caused by a persistent posterior fossa dural leak. The patient presented with superficial siderosis 30 years after a Chiari I malformation repair. A pinhole-sized dural tear was identified preoperatively using computed tomography cisternography. The dural defect was successfully repaired. An additional small tear that was not seen on imaging was also identified at surgery and successfully repaired.

scholarly journals Spinal endoscopy combined with selective CT myelography for dural closure of the spinal dural defect with superficial siderosis: technical note

2018 ◽  
Vol 28 (1) ◽  
pp. 96-102 ◽  
Author(s):  
Hidetaka Arishima ◽  
Yoshifumi Higashino ◽  
Shinsuke Yamada ◽  
Ayumi Akazawa ◽  
Hiroshi Arai ◽  
...  
Keyword(s):  
Endoscopic Examination ◽  
Technical Note ◽  
Drainage Tube ◽  
Superficial Siderosis ◽  
Dural Defect ◽  
Ct Myelography ◽  
Dural Closure ◽  
Spinal Subarachnoid Space ◽  
Csf Leakage ◽  
Dural Defects

The authors describe a new procedure to detect the tiny dural hole in patients with superficial siderosis (SS) and CSF leakage using a coronary angioscope system for spinal endoscopy and selective CT myelography using a spinal drainage tube. Under fluoroscopy, surgeons inserted the coronary angioscope into the spinal subarachnoid space, similar to the procedure of spinal drainage, and slowly advanced it to the cervical spine. The angioscope clearly showed the small dural hole and injured arachnoid membrane. One week later, the spinal drainage tube was inserted, and the tip of the drainage tube was located just below the level of the dural defect found by the spinal endoscopic examination. This selective CT myelography clarifies the location of the dural defect. During surgery, the small dural hole could be easily located, and it was securely sutured. It is sometimes difficult to detect the actual location of the small dural hole even with thin-slice MRI or dynamic CT myelography in patients with SS. The use of a coronary angioscope for the spinal endoscopy combined with selective CT myelography may provide an effective examination to assess dural closure of the spinal dural defect with SS in cases without obvious dural defects on conventional imaging.

Microsurgical anatomy and treatment of dural defects in spontaneous spinal cerebrospinal fluid leaks

2020 ◽  
pp. 1-9
Author(s):  
Ako Matsuhashi ◽  
Keisuke Takai ◽  
Makoto Taniguchi
Keyword(s):  
Dura Mater ◽  
Fat Grafting ◽  
Thoracolumbar Junction ◽  
Microsurgical Anatomy ◽  
Dural Defect ◽  
Ct Myelography ◽  
Blood Patch ◽  
Neurosurgical Treatment ◽  
Dural Defects ◽  
Csf Leaks

OBJECTIVESpontaneous spinal CSF leaks are caused by abnormalities of the spinal dura mater. Although most cases are treated conservatively or with an epidural blood patch, some intractable cases require neurosurgical treatment. However, previous reports are limited to a small number of cases. Preoperative detection and localization of spinal dural defects are difficult, and surgical repair of these defects is technically challenging. The authors present the anatomical characteristics of dural defects and surgical techniques in treating spontaneous CSF leaks.METHODSAmong the consecutive patients who were diagnosed with spontaneous CSF leaks at the authors’ institution between 2010 and 2020, those who required neurosurgical treatment were included in the study. All patients’ clinical information, radiological studies, surgical notes, and outcomes were reviewed retrospectively. Outcomes of two different procedures in repairing dural defects were compared.RESULTSAmong 77 patients diagnosed with spontaneous CSF leaks, 21 patients (15 men; mean age 57 years) underwent neurosurgery. Dural defects were detected by FIESTA MRI in 7 patients, by CT myelography in 12, by digital subtraction myelography in 1, and by dynamic CT myelography in 1. The spinal levels of the defects were localized at the cervicothoracic junction in 16 patients (76%) and thoracolumbar junction in 4 (19%). Intraoperative findings revealed that the dural defects were small, circumscribed longitudinal slits located at the ventral aspect of the dura mater. The median dural defect size was 5 × 2 mm. The presence of dural defects at the thoracolumbar junction was associated with manifestation of an altered mental status, which was an unusual manifestation of CSF leaks (p = 0.003). Eight patients were treated via the posterior transdural approach with watertight primary sutures of the ventral defects, and 13 were treated with muscle or fat grafting. Regardless of the two different procedures, postoperative MRI showed either complete disappearance or significant reduction of the extradural CSF collection. No patient experienced postoperative neurological deficits. Clinical symptoms improved or stabilized in 20 patients with a median follow-up of 12 months.CONCLUSIONSDural defects in spontaneous CSF leaks were small, circumscribed longitudinal slits located ventral to the spinal cord at either the cervicothoracic or thoracolumbar junction. Muscle/fat grafting may be an alternative treatment to watertight primary sutures of ventral dural defects with a good outcome.

Superficial siderosis due to dural defect with thoracic spinal cord herniation

2012 ◽  
Vol 312 (1-2) ◽  
pp. 170-172 ◽  
Author(s):  
Giorgio B. Boncoraglio ◽  
Elena Ballabio ◽  
Alessandra Erbetta ◽  
Francesco Prada ◽  
Mario Savoiardo ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Superficial Siderosis ◽  
Dural Defect ◽  
Thoracic Spinal Cord ◽  
Thoracic Spinal ◽  
Spinal Cord Herniation

scholarly journals Repair of a traumatic subarachnoid-pleural fistula with the percutaneous injection of fibrin glue in a 2-year-old

2016 ◽  
Vol 17 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Jason K. Chu ◽  
Brandon A. Miller ◽  
Michael P. Bazylewicz ◽  
John F. Holbrook ◽  
Joshua J. Chern
Keyword(s):  
Fibrin Glue ◽  
Chest Tube ◽  
Epidural Injection ◽  
Dural Defect ◽  
Percutaneous Injection ◽  
Ct Guided ◽  
First Line Therapy ◽  
Tube Output ◽  
Chest Tube Output ◽  
Dural Defects

Subarachnoid-pleural fistulas (SPFs) are rare clinical entities that occur after severe thoracic trauma or iatrogenic injury during anterolateral approaches to the spine. Treatment of these fistulas often entails open repair of the dural defect. The authors present the case of an SPF in a 2-year-old female after a penetrating injury to the chest. The diagnosis of an SPF was suspected given the high chest tube output and was confirmed with a positive β2-transferrin test of the chest tube fluid, as well as visualization of dural defects on MRI. The dural defects were successfully repaired with CT-guided percutaneous epidural injection of fibrin glue alone. This case represents the youngest pediatric patient with a traumatic SPF to be treated percutaneously. This technique can be safely used in pediatric patients, offers several advantages over open surgical repair, and could be considered as an alternative first-line therapy for the obliteration of SPFs.

Optic Neuropathy Revealing Severe Superficial Siderosis in the Setting of Long-standing Low-grade Intracranial Neoplasm

2021 ◽  
pp. 1-7
Author(s):  
Coralie Hemptinne ◽  
Adrienne Coche ◽  
Thierry Duprez ◽  
Philippe Demaerel ◽  
Christian Raftopoulos ◽  
...  
Keyword(s):  
Optic Neuropathy ◽  
Superficial Siderosis ◽  
Low Grade ◽  
Intracranial Neoplasm

Novel hydrogel application in minimally invasive surgical approaches to spontaneous intracranial hypotension

2014 ◽  
Vol 121 (4) ◽  
pp. 976-982 ◽  
Author(s):  
Casey M. Chai ◽  
Matei A. Banu ◽  
William Cobb ◽  
Neel Mehta ◽  
Linda Heier ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Intracranial Hypotension ◽  
Fluid Collection ◽  
Spontaneous Intracranial Hypotension ◽  
Patch Repair ◽  
Surgical Approaches ◽  
Dural Defect ◽  
Dural Repair ◽  
Blood Patch ◽  
Csf Leaks

The authors report 2 cases of orthostatic headaches associated with spontaneous intracranial hypotension (SIH) secondary to CSF leaks that were successfully treated with an alternative dural repair technique in which a tubular retractor system and a hydrogel dural sealant were used. The 2 patients, a 63-year-old man and a 45-year-old woman, presented with orthostatic headache associated with SIH secondary to suspected lumbar and lower cervical CSF leaks, respectively, as indicated by bony defects or epidural fluid collection. Epidural blood patch repair failed in both cases, but both were successfully treated with the minimally invasive application of a hydrogel dural sealant as a novel adjunct to traditional dural repair techniques. Both patients tolerated the procedure well. Moreover, SIH symptoms and MRI signs were completely resolved at 1-month follow-up in both patients. The minimally invasive dural repair procedure with hydrogel dural sealant described here offers a viable alternative in patients in whom epidural blood patches have failed, with obscure recalcitrant CSF leaks at the cervical as well as lumbar spinal level. The authors demonstrate that the adjuvant use of sealant is a safe and efficient repair method regardless of dural defect location.

Superficial siderosis: bleeding from the bone marrow after laminectomy for spinal tumor removal

2014 ◽  
Vol 21 (6) ◽  
pp. 905-908 ◽  
Author(s):  
Junichi Yokosuka ◽  
Keisuke Takai ◽  
Takashi Komori ◽  
Makoto Taniguchi
Keyword(s):  
Bone Marrow ◽  
Residual Tumor ◽  
Spinal Tumor ◽  
Neurological Deficits ◽  
Superficial Siderosis ◽  
Dural Defect ◽  
Bleeding Source ◽  
Subarachnoid Bleeding ◽  
Surgical Data ◽  
Intrathecal Space

Superficial siderosis of the CNS is a rare disease characterized by the deposition of hemosiderin in the subpial layers of the CNS as the result of chronic subarachnoid bleeding. The arrest of bleeding is important for preventing the progression of this disease; however, the exact source of bleeding remains unknown in most cases because of a lack of objective surgical data. The authors of this report have described a unique case of superficial siderosis following cervical laminectomy and autograft fusion for the removal of a spinal schwannoma; the bleeding source was verified by intraoperative and histopathological findings. The patient exhibited no obvious neurological deficits, such as hearing loss or cerebellar ataxia, when the superficial siderosis was diagnosed, although there were the social impairments associated with schizophrenia. During repair surgery, the bleeding source was revealed as the bone marrow vasculature of the remaining vertebral arch, and not the fragile vessels at the dural defect or the residual tumor. Chronic bleeding was stopped before the onset of irreversible neurological deficits in this case. Bone marrow exposed to the intrathecal space may represent a chronic bleeding source in patients with superficial siderosis following CNS surgery including laminectomy or craniotomy. The following recommendations have been proposed for superficial siderosis of the CNS from both a preventative and a therapeutic perspective: 1) During CNS surgery, neurosurgeons should make every effort to prevent exposing bone marrow to the intrathecal space to avoid the risk of chronic subarachnoid bleeding. 2) In the case of a large dural defect and pseudomeningocele following CNS surgery, bone marrow around the dural defect should be considered as the bleeding source of superficial siderosis, and such cases should undergo revision surgery before the progression of this disease.

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