Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 18 de 18
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
Indian J Orthop ; 53(1): 160-168, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30905997

RESUMO

Background: The healed status (end-point of treatment) in tuberculosis (TB) spine is not defined; hence optimum antitubercular therapy (ATT) duration is unresolved. We, for the first time, prospectively evaluated the healed status in TB spine by fluorodeoxyglucose-positron emission tomography/computed tomography (FDG-PET/CT) and contrast magnetic resonance imaging (MRI) with the objective to define end-point of treatment in TB spine. Materials and Methods: Thirty seven patients of TB spine diagnosed on clinicoradio imaging/cytology/histologically/molecular methods were enrolled, treated and were evaluated radiologically, by contrast MRI and FDG-PET/CT at 9 months. ATT was stopped on contrast MRI-based healing or absence of FDG uptake on PET-CT. ATT was continued in active/resolving lesion. Repeat evaluation was done at 12, 18, 24, and 30 months till healing is demonstrated. In this research work, we got contrast MRI and FDG-PET/CT done for the patients from government institution free of cost, so patients did not have to bear the burden of cost of these investigations. Results: Twenty-eight patients achieved healed status out of which 11 demonstrated healed status on contrast MRI and FDG-PET/CT both, 6 were MRI active (contrast enhancement) but FDG-PET/CT healed, 2 were MRI healed but FDG-PET/CT active (soft-tissue standardized uptake value <2.0), 9 patients were MRI incompatible due to stainless steel implants (n = 6), and in 3 patients MRI could not be done due to financial constraints and were declared healed on FDG-PET/CT. FDG-PET/CT showed healed bone lesion in 28/28 (100%) and on MRI 13/19 (68.42%), respectively. We had 6 patients whose spine was stabilized with stainless steel implants where MRI could not be performed, MRI was useful in 13/25 cases (52%) to demonstrate healed lesion. 7, 6, 6, 5, 1, 2, and 1 cases achieved healed status at 9, 12, 18, 24, 30, 36, and 48 months of ATT intake, respectively. Conclusions: FDG-PET/CT is more useful to demonstrate the healed status than MRI and is the only imaging to demonstrate healed status when MRI could not be performed due to metallic implants. All patients achieved healed status at variable length of ATT intake; hence TB spine should be treated by ATT till healed status (end-point of treatment) is demonstrated by FDG-PET/CT (absence of FDG uptake) or contrast MRI.

2.
Indian Pediatr ; 54(7): 581-585, 2017 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-28737143

RESUMO

The number of computed tomography (CT) scans being done for children all over the world is on the rise ever since the advent of Multi-Detector CT (MDCT). However, CT is a potential source of harmful ionizing radiation, and children are more susceptible to its adverse effects. It is essential for the pediatrician as well as the radiologist to be aware of some important principles and guidelines, by following which, radiation exposure to the child can be minimized to the bare essential. It is important to have knowledge of the valid and justifiable indications of CT for the child, the correct technique of performing the scan, and the new technological innovations now available on modern scanners that help to minimize radiation dose.


Assuntos
Exposição à Radiação , Tomografia Computadorizada por Raios X , Adolescente , Criança , Relação Dose-Resposta à Radiação , Humanos , Guias de Prática Clínica como Assunto , Exposição à Radiação/prevenção & controle , Exposição à Radiação/normas , Tomografia Computadorizada por Raios X/efeitos adversos , Tomografia Computadorizada por Raios X/normas
3.
J Clin Diagn Res ; 10(7): TR01-5, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27630925

RESUMO

Lymphoproliferative malignancies constitute a wide spectrum of haematological malignancies and their prevalence is widely increasing. Non-Hodgkin lymphomas and Hodgkin disease, frequently involve extranodal soft tissue structures in the head and neck, thorax and abdomen. These malignancies may involve virtually any type of soft tissues to any extent; hence many different imaging manifestations are possible which may mimic other disorders. The imaging characteristics of extranodal lymphomatous soft tissue involvement are described and classified here according to the site of involvement in 6 cases (primary diseases with orbital, muscle, extra testicular, scalp, sinonasal and pachymeningeal/dural involvement). In majority of these cases at presentation we found a predominantly homogeneous soft tissue mass with mildly high attenuation on CT and a T2 intermediate signal on MRI at these sites without any manifestation of disease elsewhere but on follow-up two out of these six cases developed systemic disease elsewhere. Few consistent patterns were noticed on CT and MRI which might help to include lymphomas as an important differential diagnosis of soft tissue masses. Though a definitive diagnosis requires a biopsy (bone marrow, lymph node, or mass), and other laboratory tests, imaging primarily aims at staging of the disease and identification of new or recurrent disease.

4.
J Cancer Res Ther ; 11(3): 646, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26458601

RESUMO

Although amyloidomas are quite well-known, intracranial, and especially skull base lesions have been rarely reported. Extensive lesions in the skull base frequently simulate malignancy clinicoradiologically. Diagnosis of these lesions is important as they offer a favorable prognosis. We describe a large infiltrating osteolytic skull base tumor-like lesion in a 45-year-old male without evidence of associated plasma cell dyscrasia. Squash smears and histopathology revealed a plasma cell-rich lesion with abundant amyloid, confirming amyloidoma. To conclude, amyloidoma of the skull base is a rare tumor-like lesion, with timely diagnosis and management offering a good prognosis.


Assuntos
Amiloidose/diagnóstico por imagem , Granuloma de Células Plasmáticas/diagnóstico por imagem , Paraproteinemias/diagnóstico por imagem , Neoplasias da Base do Crânio/diagnóstico por imagem , Diagnóstico Diferencial , Humanos , Masculino , Pessoa de Meia-Idade , Radiografia , Base do Crânio/patologia
6.
Indian J Radiol Imaging ; 25(3): 315-20, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26288528

RESUMO

The choledochal cysts, which refer to the cystic dilatation of the biliary duct, are rare lesions generally seen in children. Choledochal cyst of the cystic duct is an uncommon entity. Often, it is associated with the choledochal cyst of the rest of the biliary tree. Isolated cystic duct choledochal cyst is quite rare. Most of these lesions have been recognized only on surgery. Modern cross-sectional imaging methods have facilitated preoperative recognition and characterization of cystic duct cyst enabling formulation of appropriate management strategy. We report the imaging findings in three cases of choledochal cyst involving the cystic duct. All these cases were correctly diagnosed preoperatively. A review of cases reported in the literature and the role of imaging in guiding the management are also presented.

8.
Indian J Otolaryngol Head Neck Surg ; 65(Suppl 3): 505-11, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24427705

RESUMO

The value of high-resolution CT scanning in diagnosing stapedial otosclerosis and in influencing surgical planning was studied. 40 cases, consisting of patients of both genders, above the age of 14 years, with a clinical diagnosis of otosclerosis underwent HRCT of the temporal bones. Images were acquired in axial plane, with a bone algorithm, keeping slice thickness at 0.5 mm and intervals of 0.5 mm. Reconstruction of the volume data set was done to obtain overlapping slices in various planes, so as to obtain the best possible images of the footplate of stapes. The thickness of the footplate was measured and the site of lesion was noted in these images. On exploratory tympanotomy, the footplate was assessed and graded according to a visual scale. HRCT was able to diagnose stapedial otosclerosis in 85% ears. It was able to identify the presence of a thickened footplate correctly with a sensitivity of 85.3% (P value 0.16). It was able to correctly localize the site of otosclerotic focus in 85% cases (P value <0.01). Thus, an estimate of the thickness of the footplate likely to be encountered and thus the amount of drilling likely to be required to create a fenestra; and the likely site of maximum thickness could be made pre-operatively. This study also established the value of multislice CT on the acquisition of such data. This method obviates the requirement of difficult patient positioning, reduces scanning time; while greatly improving the sensitivity of the scanning.

9.
Jpn J Radiol ; 30(2): 105-15, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-22190071

RESUMO

Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. Computed tomography is the imaging modality of choice for diagnosing GIST. The aim of this retrospective study was to review the imaging features of 22 GIST cases. We also describe the clinical and pathological findings of this well-recognized entity.


Assuntos
Neoplasias Gastrointestinais/diagnóstico por imagem , Tumores do Estroma Gastrointestinal/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Adulto , Idoso , Meios de Contraste , Feminino , Neoplasias Gastrointestinais/diagnóstico , Neoplasias Gastrointestinais/patologia , Tumores do Estroma Gastrointestinal/diagnóstico , Tumores do Estroma Gastrointestinal/patologia , Humanos , Imagem por Ressonância Magnética , Masculino , Pessoa de Meia-Idade
10.
Jpn J Radiol ; 29(10): 730-4, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22009426

RESUMO

Serous cystadenocarcinoma of the pancreas is a rare but well-established entity. The origin of this disorder is speculative, and its evolution remains unclear. On imaging, the malignant behavior of the tumor is best supported by local invasion and/or distant metastasis. The histological characteristics of serous cystadenocarcinoma are indistinguishable from those of its benign counterpart, making the presence of invasion the sole criterion distinguishing the two. The prognosis is excellent even in the face of metastatic disease. We report a case of serous cystadenocarcinoma complicated by recurrent acute and chronic pancreatitis. Initially, no sign of malignancy was seen on imaging. Follow-up study revealed its malignant nature in the form of increased size, presence of duodenal invasion, and multiple liver metastases. The patient underwent Whipple resection with a jejunal Roux-en-Y conduit and microwave coagulonecrotic therapy for metastatic liver lesions. Histopathological examination of the resected specimen revealed a locally invasive cystadenocarcinoma with metastatic disease. One year afterward, the patient is alive with no evidence of progression.


Assuntos
Cistadenocarcinoma Seroso/diagnóstico , Neoplasias Hepáticas/diagnóstico , Imagem por Ressonância Magnética/métodos , Neoplasias Pancreáticas/diagnóstico , Tomografia Computadorizada por Raios X/métodos , Ultrassonografia/métodos , Colangiopancreatografia por Ressonância Magnética/métodos , Meios de Contraste , Cistadenocarcinoma Seroso/complicações , Cistadenocarcinoma Seroso/patologia , Seguimentos , Humanos , Neoplasias Hepáticas/secundário , Neoplasias Hepáticas/terapia , Masculino , Pessoa de Meia-Idade , Pâncreas/patologia , Pâncreas/cirurgia , Neoplasias Pancreáticas/complicações , Neoplasias Pancreáticas/patologia , Pancreatite/complicações , Intensificação de Imagem Radiográfica/métodos
11.
Indian J Radiol Imaging ; 21(1): 18-20, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21431027

RESUMO

Filariasis is an endemic infection seen in the tropical and subtropical regions of the world, presenting with lymphatic dysfunction in the form of lymphocele, hydrocele, chyluria, or groin lymphadenovarix. We report a rare presentation of filariasis as an intra-abdominal cystic mass.

14.
Artigo em Inglês | MEDLINE | ID: mdl-17052638

RESUMO

Intramuscular vascular malformations are unusual tumors in the head and neck region. Less than 1% of vasoformative tumors throughout the body occur in skeletal muscle; 15% of them arise in head and neck musculature. Masseter muscle is the most frequent site for such vascular malformations; it accounts for approximately 5% of all intramuscular vascular malformations in the head and neck region. A case of unusual intramuscular vascular malformation of masseter muscle is described and the diagnosis and management of these tumors is discussed.


Assuntos
Malformações Arteriovenosas , Músculo Masseter/irrigação sanguínea , Adulto , Malformações Arteriovenosas/classificação , Malformações Arteriovenosas/diagnóstico por imagem , Malformações Arteriovenosas/terapia , Diagnóstico Diferencial , Feminino , Humanos , Músculo Masseter/diagnóstico por imagem , Radiografia , Escleroterapia , Decúbito Dorsal
15.
Pediatr Radiol ; 36(5): 432-3, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16508744

RESUMO

We describe a unique case of congenital umbilicobiliary fistula. A full-term neonate presented with passage of bile through the umbilicus. A contrast study demonstrated communication with the intrahepatic biliary system.


Assuntos
Doenças Biliares/diagnóstico por imagem , Fístula/diagnóstico por imagem , Umbigo/diagnóstico por imagem , Feminino , Humanos , Recém-Nascido , Radiografia
16.
Surg Today ; 34(6): 537-41, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15170553

RESUMO

A 21-year-old woman presented with a 2-day history of acute abdominal pain. Contrast-enhanced computed tomography (CT) showed a perforation in the lesser curve of the stomach. The patient suffered a bout of hematemesis, following which an endoscopy showed a bleeding blood vessel at the edge of the perforation. We performed an emergency distal gastrectomy, including the ulcer site. Histopathological examination revealed tuberculous granulation tissue and acid-fast bacilli in the ulcer. The patient was given antituberculosis therapy (ATT) postoperatively, and was well when last seen 1 year 5 months after surgery. We analyzed the clinical data of five cases of tuberculous gastric perforation (TGP), reported between 1948 and 2003, including our patient. The patients ranged in age from 21 to 45 years, with a mean age of 36.8 years (SD +/- 10.21), and a male to female ratio of 3 : 2. The diagnosis was confirmed by surgery or autopsy. Abdominal lymphadenopathy was present in all patients. Gastrectomy was performed in four patients, and two were given ATT. All four patients in the previous reports died of their disease.


Assuntos
Gastrectomia , Úlcera Péptica Perfurada/etiologia , Gastropatias/microbiologia , Gastropatias/cirurgia , Úlcera Gástrica/microbiologia , Úlcera Gástrica/cirurgia , Tuberculose Gastrointestinal/complicações , Dor Abdominal/etiologia , Adulto , Antituberculosos/uso terapêutico , Feminino , Hematemese/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Úlcera Péptica Perfurada/microbiologia , Úlcera Péptica Perfurada/cirurgia , Gastropatias/etiologia , Úlcera Gástrica/etiologia , Resultado do Tratamento
17.
Australas Radiol ; 47(1): 70-2, 2003 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-12581060

RESUMO

Leiomyosarcoma of the seminal vesicle is exceedingly rare. The ultrasound and CT findings in a recent case are described. These consist of a mass causing enlargement of the right seminal vesicle with involvement of the urinary bladder and prostate. The prostate gland was displaced inferiorly and to the left. Surgical resection and subsequent histology confirmed the diagnosis. The role of imaging in retrovesical masses is also discussed.


Assuntos
Neoplasias dos Genitais Masculinos/diagnóstico por imagem , Leiomiossarcoma/diagnóstico por imagem , Glândulas Seminais/diagnóstico por imagem , Humanos , Masculino , Pessoa de Meia-Idade , Radiografia , Ultrassonografia
18.
J Clin Ultrasound ; 30(8): 503-5, 2002 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-12242740

RESUMO

Pancreatopleural fistula is an uncommon complication of pancreatitis. The presence of a fistulous tract, although not mandatory for diagnosis of pancreatopleural fistula, has been documented previously with contrast-enhanced radiography and endoscopic retrograde cholangiopancreatography. We report the case of a pancreatopleural fistula with right pleural effusion demonstrated sonographically in a 13-year-old girl with a history of chronic pancreatitis and upper abdominal pain. Sonography also showed a pseudocyst of the pancreas with pleural effusion. The patient was treated conservatively with nutritional support and intercostal drainage of the pleural fluid. Her symptoms resolved and the pleural effusion gradually disappeared. Sonography is useful in confirming the presence of a suggested pancreatopleural fistula and can avoid the need for other, more technically challenging imaging modalities.


Assuntos
Fístula Pancreática/diagnóstico por imagem , Doenças Pleurais/diagnóstico por imagem , Fístula do Sistema Respiratório/diagnóstico por imagem , Adolescente , Diagnóstico Diferencial , Feminino , Humanos , Derrame Pleural/diagnóstico por imagem , Ultrassonografia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA