1/29. Malignant peripheral nerve sheath tumors in the setting of segmental neurofibromatosis. Case report.Approximately 100 cases of segmental neurofibromatosis (NF5) have been reported in the recent literature. patients with NF5 present with cafe-au-lait macules, freckles, and/or neurofibromas limited to one or adjacent dermatomes. Neurofibromas arising in NF5 have been uniformly considered to be benign; patients were thought to have an excellent prognosis without the risk of developing malignant peripheral nerve sheath tumors (PNSTs), which are characteristic in patients with the generalized form of this disease, von Recklinghausen's NF. In this report the authors detail the first observations of malignant PNSTs in two patients with NF5. Indications for surgical removal of a neurofibroma in a patient with NF include pain. neurological impairment, compression of adjacent structures, cosmetic disfigurement, and rapid tumor growth suggestive of malignant degeneration. Surgical indications are similar for patients with NF5. All patients with neurofibromas should be considered at risk for malignant degeneration.- - - - - - - - - - ranking = 1keywords = nerve (Clic here for more details about this article) |
2/29. Posterior femoral cutaneous nerve mononeuropathy: a case report.Isolated posterior femoral cutaneous nerve (PFCN) lesions are rare, with only six cases reported in the modern literature and one case documented with a nerve conduction study. A 25-year-old woman had sensory loss in the posterolateral thigh after two right gluteal intramuscular injections. Nerve conduction studies using Dumitru's technique showed a 9microV response on the asymptomatic side, but no response on the symptomatic side, and no abnormalities on needle examination of the back and lower extremities. Although a single case does not prove the validity of a technique, this case provides the rare opportunity to demonstrate the utility of Dumitru's technique.- - - - - - - - - - ranking = 1.2keywords = nerve (Clic here for more details about this article) |
3/29. femoral nerve palsy in hip replacement due to pelvic cement extrusion.We report a case in which cement protrusion into the pelvis led to a major complication. During reaming and preparation of the anterosuperior acetabulum, a bony defect resulted which made fixation of an uncemented cup impossible, and a cemented polyethylene cup was used instead. After surgery the patient suffered a complete loss of femoral nerve function. Postoperative x-rays and CTs showed that a huge mass of bone cement protruded into the pelvis in close proximity to the iliac vessels and the femoral nerve. This probably led to nerve damage during the cement's polymerisation process due to the heat.- - - - - - - - - - ranking = 1.4keywords = nerve (Clic here for more details about this article) |
4/29. Lumbar disc herniation mimicking meralgia paresthetica: case report.BACKGROUND: Meralgia paresthetica, a syndrome of pain and/or dysesthesia in the anterolateral thigh, is normally caused by an entrapment of the lateral femoral cutaneous nerve (LFCN) at the anterior superior iliac spine. In a few cases compression of the nerve in the retroperitoneum has been reported to mimic meralgia paresthetica. CASE DESCRIPTION: A 67-year-old woman presented with a 5-year history of permanent paresthesia in the anterolateral thigh. Motor weakness was not detected. electromyography showed a neurogenic lesion at the level of L3. Lumbar spine MRI detected a foraminal-extraforaminal disc herniation at L2/L3, which was extirpated via a lateral transmuscular approach. The patient was free of symptoms on the first postoperative day. CONCLUSION: In patients with meralgia paresthetica we emphasize a complete radiological investigation of the lumbar spine, including MRI, to exclude radicular compression by a disc herniation or a tumour at the level of L2 or L3.- - - - - - - - - - ranking = 0.4keywords = nerve (Clic here for more details about this article) |
5/29. Hemangiomatosis presenting as meralgia paresthetica.The authors present a 15-year-boy with meralgia paresthetica caused by the recurrence of a diffuse congenital hemangiomatosis in the pelvic region. Relief of the patient's symptoms was achieved by neurolysis of the lateral femoral cutaneous nerve in the thigh and partial excision of the tumor. To our knowledge, hemangiomatosis has never been suggested as a cause of meralgia paresthetica.- - - - - - - - - - ranking = 0.2keywords = nerve (Clic here for more details about this article) |
6/29. Iliacus hematoma and femoral nerve palsy after revision hip arthroplasty: a case report.femoral nerve palsy occurred in a 65-year-old man after he had undergone a revision total hip arthroplasty using cementless components. The magnetic resonance imaging scan showed a mass in the iliacus muscle. The mass showed increased signal intensity on T1-weighted and T2-weighted spin-echo images and contained linear septa and a nodule. The gadolinium-enhanced T1-weighted image showed a rim of significant enhancement in the nodule. The findings of magnetic resonance images were suggestive of iliacus hematoma and of liposarcoma. The patient underwent surgery, and the mass was identified as an iliacus hematoma. The femoral nerve was stretched by the hematoma. After removal of the hematoma, the nerve palsy was improved completely. Iliacus hematoma may occur after total hip arthroplasty, even without anticoagulant therapy. The hematoma might appear to be a liposarcoma on magnetic resonance imaging scans.- - - - - - - - - - ranking = 1.4keywords = nerve (Clic here for more details about this article) |
7/29. Retroperitoneal hematoma associated with femoral neuropathy: a complication under antiplatelets therapy.We report a case of retroperitoneal hematoma presenting as femoral nerve pulsy on antiplatelet therapy. The patient, a 78-year-old man who had undergone antiplatelet treatment using ticlopidine, was admitted to our hospital with complaints of sudden-onset low abdominal and back pain. Computed tomography showed an iso-density mass in the right retroperitoneum within the psoas muscle. We made a diagnosis of retroperitoneal hematoma compressing the femoral nerve and performed an operation to remove the hematoma in order to decompress the femoral neuropathy. Postoperatively, the patient rapidly recovered from the femoral neuropathy. In the particular case in which no antagonist against the ticlopidine is available, surgical decompression could produce a good outcome.- - - - - - - - - - ranking = 0.4keywords = nerve (Clic here for more details about this article) |
8/29. femoral nerve palsy caused by a self-retaining polyretractor during major pelvic surgery.Postoperative femoral neuropathy is not a well-recognized complication in urology. We report 2 cases of femoral nerve palsy due to compression ascribed to the use of the self-retaining retractor. In the first case, the left femoral nerve was injured, and in the second case nerve injury was bilateral and synchronous. The clinical symptoms were a weakness of the quadriceps muscle and sensory anesthesia of the surrounding skin.- - - - - - - - - - ranking = 1.4keywords = nerve (Clic here for more details about this article) |
9/29. Meralgia paresthetica occurring 40 years after iliac bone graft harvesting: case report.OBJECTIVE AND IMPORTANCE: Meralgia paresthetica is an entrapment neuropathy involving the lateral femoral cutaneous nerve. We describe an unusual case in which meralgia paresthetica occurred many years after iliac bone graft harvesting. CLINICAL PRESENTATION: An 81-year-old man presented with a 1-year history of pain, dysesthesia, and hypesthesia in the anterolateral aspect of the right thigh. This patient had undergone iliac bone grafting when he sustained a calcaneal fracture 40 years previously. Radiographs and computed tomographic scans of the pelvis revealed a bony excrescence in the anterosuperior iliac spine. INTERVENTION: The patient underwent neurolysis of the lateral femoral cutaneous nerve and excision of the bony excrescence. At surgery, the nerve was densely adherent to the bony excrescence. CONCLUSION: The etiology of meralgia paresthetica in this patient is considered to be heterotopic ossification on the anterosuperior iliac spine and pubic symphysis degeneration. A significant relationship between pubic symphysis degeneration with increasing age and meralgia paresthetica has been reported. One should be aware of meralgia paresthetica as a late complication of iliac bone graft harvesting.- - - - - - - - - - ranking = 0.6keywords = nerve (Clic here for more details about this article) |
10/29. Meralgia paresthetica: an unusual complication of cardiac catheterization via the femoral artery.Nerve complications following cardiac catheterization via the femoral route are rare. We report a case of meralgia paresthetica, a mononeuropathy affecting the lateral cutaneous nerve of the thigh following uncomplicated cardiac catheterization and percutaneous intervention via this route.- - - - - - - - - - ranking = 0.2keywords = nerve (Clic here for more details about this article) |
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