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1.
Rev. imagem ; 29(3): 111-114, jul.-set. 2007. ilus
Article in Portuguese | LILACS | ID: lil-542038

ABSTRACT

O tumor de células gigantes é uma neoplasia rara e representa 5% dos tumores ósseos primários. Acomete com maior freqüência joelho e punho, sendo raro em pequenos ossos do pé. Os autores apresentam um paciente do sexo masculino, 32 anos de idade, há quatro meses com dor no pé direito. A radiografia simples demonstrou lesão osteolítica e insuflante acometendo o primeiro metatarso do pé direito. A tomografia computadorizada revelou lesão radiolucente com bordas bem definidas. Foi realizada biópsia da lesão, cujo estudo histológico definiu o diagnóstico de tumor de células gigantes. Os autores enfatizam a correlação entre os achados de imagem e a histologia.


Giant cell tumor of bone is a rare neoplasm and account for 5% of all primary bone tumors. It is common in the knee and wrist, but rare in the small bones of the foot. The authors report a 32-yearold male patient presented with a four-month history of right foot pain. Plain radiographs showed an expansive lytic lesion involving the first right metatarsal bone. Computed tomography scan demonstrated a radiolucent lesion with well-defined borders. Biopsy was performed and the histological diagnostic was giant cell tumor. The authors emphasize the correlation between the imaging and histological findings.


Subject(s)
Humans , Male , Adult , Metatarsus/surgery , Metatarsus/pathology , Tomography, X-Ray Computed , Giant Cell Tumor of Bone/surgery , Giant Cell Tumor of Bone/diagnosis
2.
Journal of the Arab Board of Medical Specializations. 2002; 4 (3): 24-7
in English | IMEMR | ID: emr-59775

ABSTRACT

The main aim of this study was to evaluate the role of MRI in patients suspected of having Morton neuroma [intermetatarsal neuroma], and to assess the importance of the various MRI sequences in this disease. Patients and thirty patients with a clinical suspicion of Morton neuroma were examined with a 1.0 Tesla MRI scanner. T1W axial, T2W axial, fat suppression, and T1W post contrast images were obtained. Sixteen of the 30 patients underwent surgery subsequently. twelve patients of the 16 had Morton neuroma proven. There were 11 true positive, 1 false negative, 4 true negative, and no false positive diagnoses based on MRI. Of the 12 proven Morton neuroma cases, there were 5 cases in which the clinician was unable to localize the exact intermetatarsal space. In the 14 patients who did not undergo surgery the MRI results were as follows: 4 Morton neuroma, 1 stress fracture, 2 non-specific fibrosis, and 7 no abnormality. MRI is accurate in the diagnosis and localization of Morton neuroma. T1W images are the most important sequence. T2W images are included to define cystic lesions and bursae. STIR images are of some value. Post Gad T1W images were excluded from the routine sequences and reserved for when other pathology is suspected


Subject(s)
Humans , Male , Female , Metatarsus/pathology , Magnetic Resonance Imaging
3.
J Indian Med Assoc ; 1995 Jul; 93(7): 281-2
Article in English | IMSEAR | ID: sea-105902
4.
Maghreb Medical. 1995; (291): 22-4
in French | IMEMR | ID: emr-38141
5.
Rev. bras. ortop ; 25(10): 354-8, out. 1990. tab
Article in Portuguese | LILACS | ID: lil-92497

ABSTRACT

Realizou-se estudo comparativo entre o calo ósseo formado em osteotomias fixadas por placa convencional e por placa eletricamente isolada. O animal escolhido foi a ovelha: a osteotomia foi realizada na diáfise do metatarso e a osteossíntese no córtex posterior. A síntese óssea foi realizada com placa tipo compressäo dinâmica de seis furos, em um único metatarso. Foram operados dezesseis animais. Destes, doze foram aproveitados para o estudo; dois foram sacrificados aos 30 e dez aos 60 dias após a cirurgia. Os animais operados foram radiografados imediatamente após a osteossíntese, bem como aos 30 e 60 dias; as radiografias foram submetidas à análise densitométrica. O material obtido do local do reparo ósseo foi estudado através das análises morfométricas e histológica, aos 30 e 60 dias após a cirurgia. Nos animais tratados com placa isolada, encontrou-se aceleraçäo dos processos normais de reparaçäo óssea. As leituras densitométricas das radiografias permitiram avaliar a evoluçäo temporal do calo ósseo


Subject(s)
Animals , Fracture Fixation, Internal , Osteotomy/methods , Bony Callus , Metatarsus/pathology , Metatarsus/surgery , Sheep
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