The presence of peripheral periportal fibrosis, heterogeneity of hepatic parenchyma, and splenic siderotic nodules, and the splenic index and caudate lobe-right lobe ratio are useful features for differentiating alcoholic or virus-induced cirrhosis from chronic schistosomiasis using MRI.
Penetrating spinal injuries by wooden foreign body (WFB) is rare 1 . We present a 52 year-old man with a cervical spine injury by a WFB, identified 172 days after the accident, with an intramedullary abscess. Surgical intervention and antibiotic treatment led to neurological improvement. CASEA 52 year-old man had fallen from a horse on May 29, in 2008, with a penetrating injury from a piece of wood below the angle of the left mandible causing prompt change in sensibility and strength in his left side. He underwent a superficial exploration and suture in the local hospital. Neurological deficits evolved over time to loss of independent gait and severe functional limitations of the upper limbs, particularly the left.He was admitted on October 13, in 2008, without signs of inflammation, dehiscence, or cerebrospinal fluid (CSF) fistula in the neck. Neurological examination showed tetraparesis, predominantly on the left side, and hyperreflexia in lower limbs with preserved vibration and position sensation in all four limbs. He was only able to walk with great difficulty if supported by two helpers. Bladder and bowel functions were normal.The magnetic resonance image (MRI) revealed spinal cord edema and a heterogeneous intramedullary lesion at C4-C5 level, with ring like post-contrast enhancement, consistent with an abscess (Fig A and B). There was a hypointense linear image within the left C4-C5 intervertebral foramen with intramedullary extension and hyperdense on computed tomography, measuring 3.0 cm, consistent with a WFB. It transfixed the ipsilateral vertebral artery, which was obliterated (Fig C and D).The WFB was surgically removed (Fig E). Purulent matter was drained from location, where the WFB had been lodged. Lab work showed the presence of Staphilococcus epidermiditis, and the patient was treated with oxacillin. At the latest outpatient follow-up visit on January 18 th , 2011, he was independent for activities of daily living, walking without any aid, with intact sphincter control. DISCUSSIONNon-missile penetrating spinal injuries are more commonly caused by stabs 2 . WFB is rarely reported as the cause of this type of injury 1 . Since the wood is an optimal source of infection due its porous, soft, organic, and vegetable nature, spinal infectious complications are prone to occur 1,3 . Foreign body reaction, another inflammatory complication, may lead to long-term neurological worsening 1 .CT and MRI are essential to evaluate spinal cord and the presence of a foreign body in penetrating spinal injuries. The density of wood on CT is highly variable and depends on its type and hydration status, as well as on the length of stay in the body 4 . This latter factor may explain the increased density of the wooden fragment in this patient. MRI is mandatory in non-missile penetrating spinal injuries for the diagnosis of associated lesions 5 , whenever a metallic foreign body has been excluded or removed 2 . Even when CT is negative, MRI should be performed to exclude retained foreign bodies 1 .Treatment of penetra...
Apresentamos um caso de tumor renal num paciente de 27 anos de idade, que foi submetido a estudo de imagem por tomografia computadorizada e ressonância magnética. As características radiológicas da massa induziam para um diagnóstico de tumor renal maligno de origem intraparanquimatosa. No entanto, o estudo histopatológico revelou tumor fibroso solitário benigno originário da pelve e porção calicial do rim direito. Unitermos: Neoplasia; Tumor fibroso; Rim; Mesotelioma; Tomografia computadorizada; Ressonância magnética.Solitary fibrous tumor of the kidney: a case report. We present a case of a 27-year-old male patient submitted to computed tomography and magnetic resonance imaging for the evaluation of a renal tumor. The radiological features of the mass suggested the diagnosis of a malignant renal tumor of parenchymatous origin. However, the histological findings proved to be a benign solitary fibrous tumor within the pelvis and caliceal portion of the right kidney.
We present a case of an expansile diploic lesion involving the parietal bones in a 45-year-old man. Computed tomography, magnetic resonance imaging, and digital subtraction angiography were performed. The imaging findings strongly suggested the diagnosis of a malignant neoplasm. Nonetheless, histology revealed a chronic diploic hematoma.
A doença de Gorham é uma rara desordem osteolítica, de etiologia controversa, que pode afetar qualquer osso. O substrato histopatológico é a substituição óssea por uma formação expansiva de natureza vascular agressiva, não neoplásica. Descrevemos os achados radiográficos, tomográficos e de ressonância magnética de um caso desta afecção acometendo a escápula esquerda e, dois anos depois, a clavícula ipsilateral.
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