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Purpose: Chylorrhea resulting from injury of the lymphatic system during neck dissection is a well-known complication. It is an uncommon occurrence in spinal surgery, and only one case after right anterior cervical spine surgery has been described so far. Despite its rarity, chylous leakage deserves a particular attention since it may become a serious and occasionally fatal complication if not detected early and managed appropriately.Methods: We report the case of a 42-year-old man who underwent a standard anterior cervical discectomy and fusion according to Cloward approach for a C6-C7 disk herniation. The patient developed a delayed prevertebral chyle collection on postoperative day 5, presenting with mild breathing and swallowing difficulties.Results: He was managed with conservative care, including bed rest, low-fat diet and drainage pouch positioning, which led to the complete resolution of the fluid collection.Conclusions: Knowledge of the normal anatomy of the lymphatic system and of its variations is essential when planning an anterior spinal procedure, and represents the first measure to be adopted in order to avoid such complication. The prompt identification of a postoperative chylous fistula and the applicability of an individually based management's protocol may help in the majority of the cases to reduce the potential morbidity, without significant long-term effects. [ABSTRACT FROM AUTHOR]

The article presents a case study of a 56-year-old woman who was admitted to the hospital with a two-year history of progressive weakness of the hands and both lower extremities. After admission, her neurological examination found spastic paretic gait and muscle strength grade 4/5 in both upper limbs and grade 3/5 in the lower limbs. The magnetic resonance imaging (MRI) scan has confirmed the presence of a large tumor emerging from the left C1-C2 intervertebral foramen.

Primary meningeal lymphoma is a rare occurrence. We present a case of an immunocompetent patient operated on for a fronto-parietal lesion similar to a meningioma, which the histological examination diagnosed as a mucosa-associated lymphoid tissue (MALT)-type lymphoma. She received no further post-operative treatment and after 36 months showed no evidence of disease. In a review of the literature, we identified 14 similar cases of MALT lymphoma pre-operatively diagnosed as meningioma. Recognition of this rare meningeal location of a lymphoma involving the central nervous system is useful for a proper diagnosis and adequate treatment. [ABSTRACT FROM AUTHOR]

A case of calcifying pseudo-tumor of the thoracic spine, a rare lesion with tumor-like behavior and a probable inflammatory-reactive origin, is described. The clinical-pathological and neuro-radiological aspects of this lesion are discussed in relation to surgical treatment. In accordance with the other cases reported in the literature, the case observed confirmed the benign behavior of the lesion and the effectiveness of surgical treatment for achieving complete resolution of clinical symptoms without any recurrences, even when removal is only subtotal. [ABSTRACT FROM AUTHOR]

A study was perfomed to evaluate the efficacy of closed continuous drainage (CCD) via a lumbar subarachnoid catheter for prevention or treatment of CSF fistulas. In addition to the analysis of the physical, chemical and biological properties of the CSF obtained, the catheters themselves were tested on removal to identify any microorganisms contaminating them. Other factors taken into consideration were the symptoms reported by the patients during positioning of the catheter and while it was in place, any variations in body temperature and local inflammatory effects on the nerve roots of the cauda equine and surrounding tissues. The low percentage of systemic and local infections observed testifies to the safety of this method, regardless of the duration of treatment. [ABSTRACT FROM AUTHOR]

The authors describe the case of a 58-year-old man with a 6-month history of severe myelopathy. CT scan and MRI of the spine revealed a cystic formation, measuring about 1 cm in diameter, at C7-T1 at a right posterolateral site at the level of the articular facet. At operation the mass appeared to originate from the ligamentum flavum at the level of the articular facet and was in contact with the dura mater. Once the mass had been removed, there was a significant amelioration of the patient's symptoms. As previously suspected, histological aspect was synovial cyst. Cervical synovial cysts are extremely rare and, as far as we know, only 22 cases have so far been described in the literature. Diagnostic radiological investigations used were CT scan and MRI. At CT scan the most important diagnostic findings are a posterolateral juxtafacet location of the mass, egg-shell calcifications on the wall of the cyst, and air inside the cyst. At MRI the contents of the cyst are iso/hypointense on T1- and hyperintense on T2-weighted images. There may also be a hypointense rim on T2-weighted images, which enhances after i.v. administration of gadolinium. Surgical treatment consists of removal of the mass. Fixation of the vertebral segments involved is not always necessary. [ABSTRACT FROM AUTHOR]

Between February, 1980, and April, 1993. 10 patients with intraparenchymal hemorrhage due to the bleeding of an arteriovenous malformation (AVM) underwent emergency surgical procedures within an average time of 3 hours (min. 2 — max. 7) from casualty to admission. Rapid neurological worsening and mass effect of the extensive intracerebral hemorrhage prompted early surgical treatment. Post-operative angiography was performed to confirm that the malformation had been excluded from the circulation. The aim of this study is to evaluate the role of early surgery in patients requiring emergency surgical procedures for severe neurological injury induced by extensive intracerebral hematoma produced by AVM bleeding. [ABSTRACT FROM AUTHOR]

Idiopathic epidural spinal lipomas are rare: only 13 cases have been described in the literature. We report a further case in an obese patient without known etiological factors. Diagnosis of epidural lipomatosis was performed by MRI. Weight reduction was obtained by conservative treatment, reserving surgery in case symptoms did not disappear. Of the 8 obese patients with idiopathic epidural spinal lipomatosis described in the literature, 3 were treated conservatively, with complete regression of symptoms in 2 cases, partial in the other one. In our patient, the radicular symptomatology disappeared once he had lost weight. [ABSTRACT FROM AUTHOR]

Optic sheath meningocele is rare; only approximately 31 cases have been reported. The term optic sheath meningocele has recently been proposed by Garrity and Forbes to describe primary CSF cysts of the optic nerve sheath, without apical mass or malformation of the cranio-orbital junction. Presenting symptoms are often related to involvement of the optic nerve, with a slow or rapid decrease of visual acuity. CT and MRI studies reveal a tubular-cystic enlargement of the optic nerve/optic sheath complex (on/onsc), with thickening of the optic nerve. Radiological differential diagnosis should include optic nerve tumors such as gliomas, meningiomas, and arachnoid cysts involving the optic nerve sheath. Up to now, it seems that early surgical management by means of optic nerve/optic nerve sheath decompression affords an improvent of visual function with minimal morbidity in patients who present a rapid decrease of visual acuity within 3–6 months. We present an additional case and discuss the clinical, radiological, and operative features of this pathological condition of the optic nerve sheath. [ABSTRACT FROM AUTHOR]

The case of a young patient with left accessory nerve paralysis is reported. He had slight tilting of the head to the right side, developed over a period of about 6 months. On neurological examination hypotrophy of the left sternocleidomastoid and trapezius muscles was observed. MRI and MR-angiography imaged the presence of a neurovascular compression between the medulla oblungata, at the level of the nerve entry zone, and a vessel loop of an elongated left vertebral artery. In spite of the absence of a surgical demonstration it is our opinion that the neurovascular conflict is the cause of the accessory nerve palsy. [ABSTRACT FROM AUTHOR]

A unique case of suprasellar dermoid cyst and familial hypercholesterolemia in a child is reported. Such an association, which strengthens the congenital hypothesis of dermoid cysts, could be a manifestation of a complex dyslipidemic inherited syndrome, at least in children. Surgical removal of the dermoid cyst which spilled cholesterol into the cavernous and intercavernous sinuses, allowed reduction of cholesterol levels in the postoperative period. [ABSTRACT FROM AUTHOR]

The aim of this article is to present an update of a rare but interesting problem: 'crossed aphasia'. This term indicates the presence of aphasia after unilateral cerebral lesion of the hemisphere ipsilateral to the patient's dominant hand. We report two cases, review the most relevant literature, and analyze clinical, neuroanatomical, and neurophysiological aspects, taking in consideration the various interpretations proposed to explain this unusual language disorder. [ABSTRACT FROM AUTHOR]

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A case of actinomycotic brain infection in a juvenile patient is described. Cases of actinomycosis affecting the head and neck are rare, particularly in juvenile patients. In this case complete resolution of the infection was achieved by means of surgical treatment and prolonged antibiotic therapy. The authors emphasize the importance of a combined approach for treatment of this unusual brain infection and stress the difficulties involved in the diagnosis of this pathology. [ABSTRACT FROM AUTHOR]

Between April, 1992 and December, 1995, forty consecutive patients with a cerebral malignant glioma (WHO Grade III and IV) were enrolled in a trial consisting in surgery and post-operative administration of radiotherapy (4500–6000 cGy), carboplatin (CBDCA; dose of 450–600 mg/m2), and oral tamoxifen (TAM; at doses of 40, 80 or 120 mg/day). Two patients of the TAM group died in the postoperative period from a pulmonary embolism and myocardial infarction, respectively. The patients (all dosages combined) had a median survival time of 13 months from the time of diagnosis. The 12-month and 24-month survival rates were 52% and 32%, respectively. The median relapse-free survival time was 7 months. Patients treated with higher doses of TAM (80–120 mg/day) demonstrated a longer median survival rate (13 months both) and a longer 12-month survival result (58% and 76%, respectively). Patients who assumed TAM for a period longer than 3 months (group+3) have a higher median survival rate (16 months) and better 12-month and 24-month results (62% and 40%, respectively). Moreover, the median relapse-free survival time was 10 months (versus 6 months in group−3; p=0.0038). However, it is not possible to exclude that patients of group+3 had a slower growing or a stable tumor and were well enough to assume TAM for a longer period. The results observed in the TAM-group have been compared with those of 40 matched controls treated with surgery, radiotherapy and CBDCA. These patients had a median survival time of 9 months (p = 0.04) and the 12-month and 24-month survival rates were 30% and 0%, respectively. The median relapse-free survival time was 4 months (p = 0.0014). These data suggest a potential role for combinational TAM-CBDCA therapy in the post-operative treatment of cerebral malignant gliomas; further clinical phase III trials, especially those with higher dosages of TAM are warranted. [ABSTRACT FROM AUTHOR]

The case of a patient with a right atypical trigeminal neuralgiacaused by a metastatic tumor involving the Meckel‘s cave is reported. His medical history was significant for colon-rectaladenocarcinoma. The preoperative diagnosis of Meckel‘s cave neoplasmwas made by MR. The patient underwent surgery, consisting oftotal removal of tumor and peeling of the ganglion and of the branches of the nerve, obtaining a histological diagnosis anda resolution of pain. The clinical, radiological findings and the treatment of this rare entity are discussed. [ABSTRACT FROM AUTHOR]

Intraventricular meningiomas are rare often histologically benign tumors arising most always from the trigonal region of the lateral ventricle. We report the first described case of a rapidly growing histologically benign intraventricular meningioma in a 68-year-old woman whose magnetic resonance imaging (MRI) executed 1 year before surgical operation was negative for intracranial mass lesion. [ABSTRACT FROM AUTHOR]