RESUMEN
INTRODUCTION: The hydatid cyst is an anthropozoonosis due to the development of the Echinococcus granulosus tapeworm larva in humans. Its intraparotid localization is extremely rare. CLINICAL CASE: A 10-year-old-male patient was admitted for an isolated renitent swelling of the left parotid region having grown for several months. Cervical ultrasonography revealed a left parotid cystic mass, characterized by a double wall, and a small daughter cyst. The CT-scan typically showed the absence of enhancement after iodine contrast medium injection. The imaging-based diagnosis of a hydatid cyst was supported by positive hydatid serology, and confirmed by histological analysis of the cyst. No other hydatid location was found (chest and abdominal). DISCUSSION: In spite of its rarity, hydatid cyst can be a diagnosis in case of parotid cystic masses. Ultrasonography is the first examination to be performed; it must be completed by CT-scan or even better by MRI. Once the diagnosis of hydatid cyst is confirmed, a chest radiograph and an abdominal ultrasonography should be performed, to screen for other localizations. Surgical resection is the gold standard treatment.
Asunto(s)
Equinococosis/diagnóstico , Enfermedades de las Parótidas/parasitología , Animales , Niño , Medios de Contraste , Equinococosis/diagnóstico por imagen , Echinococcus granulosus/fisiología , Humanos , Masculino , Enfermedades de las Parótidas/diagnóstico por imagen , Tomografía Computarizada por Rayos X/métodos , UltrasonografíaRESUMEN
Laryngeal tuberculosis is a rare disease. It is almost always associated with pulmonary tuberculosis. It occurs generally in adults without BCG vaccination or in cases of the acquired immune deficiency syndrome. On laryngoscopy and imaging, it often simulates laryngeal carcinoma, and confirmation is always histological. We report the case of a 36-year-old man who presented to our hospital with dysphonia and dysphagia. Laryngoscopy revealed a lesion of the left vocal cord and the ventricular strip. CT scan found focal, regular thickening of the left vocal cord, associated with irregular thickening of the posterior laryngeal wall. A biopsy confirmed the diagnosis of tuberculosis.
RESUMEN
This paper discusses spinal cord tumors including imaging characteristics with emphasis on magnetic resonance imaging and advances in treatment. This is a retrospective study of 20 cases patients with neoplasms arising from the spinal cord. All of our cases were explored by magnetic resonance imaging (1.5T) using T1-weighted imaging (Spin Echo), T2-weighted imaging (Spin Echo) and T1-weighted imaging with Gadolinium administration. Pain is the earliest symptom, characteristically occurring at night when the patient is supine. Ependymoma were observed in 11 cases. Astrocytoma was noted in five cases. Other uncommon tumors were identified in four cases: oligodendroglioma (n=1), epidermoid cyst (n=1), hemangioblastoma and metastasis (n=1). In MRI most tumors are isointense or slightly hypointense compared to the normal cord signal with homogenous or irregular enhancement. We describe the characteristic magnetic resonance findings and differential diagnosis of spinal cord tumors. Spinal cord lesions comprise approximately 2-4% of all central nervous system neoplasms. Magnetic resonance imaging plays a central role in the imaging of spinal cord neoplasms.
Asunto(s)
Equinococosis/diagnóstico , Cuello , Enfermedades Orbitales/diagnóstico , Anciano , Equinococosis/diagnóstico por imagen , Humanos , Imagen por Resonancia Magnética , Masculino , Cuello/diagnóstico por imagen , Enfermedades Orbitales/diagnóstico por imagen , Tomografía Computarizada por Rayos X , UltrasonografíaAsunto(s)
Hueso Parietal/patología , Sarcoma de Ewing/diagnóstico , Neoplasias Craneales/diagnóstico , Adolescente , Medios de Contraste , Humanos , Procesamiento de Imagen Asistido por Computador , Masculino , Hueso Occipital/patología , Hueso Temporal/patología , Tomografía Computarizada por Rayos XRESUMEN
Brown tumors are classic bony lesions of hyperparathyroidism. They usually occur in severe forms with osteolytic subperiosteal lesions. Facial bones are a rare localization: 2% of all cases. The aim of this study was to report a case of multiple craniofacial location of brown tumors and to discuss, within a review of the literature, the role of imagery in the diagnosis of this disease.
Asunto(s)
Adenoma/diagnóstico , Hiperparatiroidismo Primario/diagnóstico , Lipoma/diagnóstico por imagen , Neoplasias Maxilares/diagnóstico por imagen , Neoplasias Primarias Múltiples , Neoplasias de las Paratiroides/diagnóstico , Complicaciones Neoplásicas del Embarazo , Adenoma/diagnóstico por imagen , Adenoma/cirugía , Adulto , Biopsia , Femenino , Humanos , Hiperparatiroidismo Primario/sangre , Lipoma/etiología , Lipoma/patología , Maxilar/patología , Neoplasias Maxilares/etiología , Neoplasias Maxilares/patología , Hormona Paratiroidea/sangre , Neoplasias de las Paratiroides/diagnóstico por imagen , Neoplasias de las Paratiroides/cirugía , Embarazo , Tomografía Computarizada por Rayos X , UltrasonografíaRESUMEN
We report a case of Maffucci syndrome in a 24-year-old patient, diagnosed thanks to the data of the clinical examination, the imagery and the histology. The clinical, radiological and evolutionary aspects are discussed, as well as the various therapeutic means.
Asunto(s)
Encondromatosis/diagnóstico , Adulto , Femenino , HumanosAsunto(s)
Tuberculosis Osteoarticular/diagnóstico por imagen , Adulto , Biopsia , Humanos , Vértebras Lumbares/diagnóstico por imagen , Vértebras Lumbares/patología , Masculino , Huesos Pélvicos/diagnóstico por imagen , Huesos Pélvicos/patología , Tomografía Computarizada por Rayos X , Tuberculosis Osteoarticular/patología , Tuberculosis de la Columna Vertebral/diagnóstico por imagen , Tuberculosis de la Columna Vertebral/patologíaRESUMEN
INTRODUCTION: Solitary plasmocytoma is rarely located in the cranial vault. Usually observed, in elderly patients, occurrence during adolescence is extremely rare. We report the case of a 16-year-old patient presenting a cranial vault solitary plasmocytoma which revealed Kahler disease. CASE REPORT: A 16-year-old patient consulted for a frontal tumefaction becoming painful with diplopia. The cranio-encephalic radiography and the MRI showed a tumoral process involving cranial vault; biopsy revealed a solitary plasmocytoma. Search for multiple myeloma was negative. Six months later, a disease of Kahler was declared. CONCLUSION: Clinical and biological follow-up of cranial plasmocytoma is necessary, because progression to multiple myeloma is possible as in our observation. Imaging and particularly MRI are needed to specify the axial seat of the tumoral process and its relationship with the nervous and vascular structures.
Asunto(s)
Plasmacitoma/patología , Neoplasias Craneales/patología , Adolescente , Terapia Combinada , Diagnóstico Diferencial , Diplopía/diagnóstico , Diplopía/etiología , Humanos , Imagen por Resonancia Magnética , Masculino , Plasmacitoma/complicaciones , Plasmacitoma/terapia , Neoplasias Craneales/complicaciones , Neoplasias Craneales/terapiaRESUMEN
Tuberous sclerosis is a phakomatosis with central nervous system manifestations characterized by 4 lesions detectable on neuro-imaging: tubers, white matter abnormalities, subependymal nodules and subependymal astrocytomas. The first three are benign lesions composed of by identical cytological lesions varying only in size and location. At CT, enhancement of subependymal nodules is usually considered as evidence of transformation to subependymal giant cell astrocytoma. This latter poses the problem of its relative benignity: hydrocephalus source of morbidity or even mortality. From a series of 22 cases, the authors review the characteristics of these abnormalities.
Asunto(s)
Esclerosis Tuberosa/diagnóstico , Humanos , Imagen por Resonancia Magnética , Tomografía Computarizada por Rayos XRESUMEN
Cranial localization of osteosarcoma is rare, representing only 0,7-3% of cranial primary tumours. The authors present the case of a 33 year old man with occipital osteosarcoma diagnosed by CT scan, MRI and angiography. The radiological features of this pathology are discussed.
Asunto(s)
Hueso Occipital/patología , Osteosarcoma/diagnóstico , Neoplasias Craneales/diagnóstico , Adulto , Angiografía , Estudios de Seguimiento , Humanos , Imagen por Resonancia Magnética , Masculino , Recurrencia Local de Neoplasia/patología , Tomografía Computarizada por Rayos XRESUMEN
The Authors report the US, CT and MR features of sclerochoroidal tuberculosis simulating a choroidal tumor in a 16 Year old female presenting with acute unilateral visual loss. Fundoscopic examination and fluorescein angiography showed a tumor at the posterior pole of the globe. CT and MRI showed the choroidal process and cerebral lesions suggestive of tuberculomas. The evolution was favorable with antituberculous treatment. Ocular tuberculosis is rare, especially the pseudotumoral form. It can simulate a choroidal tumor. Radiologists should be familiar with this appearance because the lesion is reversible with antituberculous treatment.
Asunto(s)
Enfermedades de la Coroides/diagnóstico , Neoplasias de la Coroides/diagnóstico , Diagnóstico por Imagen , Melanoma/diagnóstico , Enfermedades de la Esclerótica/diagnóstico , Tuberculosis Miliar/diagnóstico , Tuberculosis Ocular/diagnóstico , Adolescente , Diagnóstico Diferencial , Femenino , Angiografía con Fluoresceína , Humanos , Aumento de la Imagen , Imagen por Resonancia Magnética , Tomografía Computarizada por Rayos X , Tuberculoma Intracraneal/diagnóstico , Tuberculosis Pulmonar/diagnóstico , UltrasonografíaRESUMEN
The authors report a case of intracranial textiloma in a 36-year-old male diagnosed 3 years after surgery for a left spheno-orbital meningioma.
Asunto(s)
Neoplasias Encefálicas/diagnóstico , Adulto , Neoplasias Encefálicas/etiología , Procedimientos Quirúrgicos Electivos , Humanos , Imagen por Resonancia Magnética , Masculino , Meningioma/cirugía , Complicaciones Posoperatorias/diagnóstico , Complicaciones Posoperatorias/etiología , Neoplasias Craneales/cirugía , Hueso Esfenoides/patología , Hueso Esfenoides/cirugíaRESUMEN
Osteochondroma or exostosis is the most common benign tumor of bone, but vertebral involvement is rare. The authors report the case of a 16 years old male with a family history of hereditary multiple exostoses who presented with spinal cord compression. MR examination showed an intraspinal extradural bone lesion at the T1-T2 level, hyperintense on T1 weighted and hypointense on T2 weighted images, causing marked cord deformity. The CT scan showed a tumor of the body and left pedicle of T2 with severe narrowing of the spinal canal.