共查询到20条相似文献,搜索用时 78 毫秒
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Ling Li Jie He Lin Chang H. Ronald Zielke David R. Fowler 《International journal of legal medicine》2011,125(1):81-85
Inflammatory myofibroblastic tumor (IMT) or inflammatory pseudotumor is a rare primary cardiac tumor that may result in sudden
death. We report a sudden unexpected death due to occlusion of the coronary arteries by IMT arising from the left coronary
cusp of the aortic valve. An 8-year-old child suddenly woke up from his sleep with complaint of severe chest pain to his parents,
and shortly he became unresponsive. He expired 40 min later in the hospital despite resuscitation efforts. The postmortem
examination revealed a 2.5 × 2 × 1-cm mass composed of multiple entangled slender cylindrical fronts, filling the coronary
sinus and obstructing the coronary ostia. The patient had complained of recurrent chest pains about 2 weeks prior to his death.
Echocardiogram was conducted on the patient but did not recognize the mass. Histological examination of the mass established
the diagnosis of primary cardiac IMT. The detailed pathological findings are described. In addition, the literature is reviewed,
and pathogenesis, clinical presentation, and the importance of forensic autopsy examination are discussed. 相似文献
3.
Seung Ja Kim Woo Kyung Moon Ji Hun Kim Nariya Cho Chung Min Chang 《Korean journal of radiology》2009,10(5):515-518
Inflammatory pseudotumor, also known as inflammatory myofibroblastic tumor and plasma cell granuloma, is an uncommon low-grade lesion composed of spindle cells admixed with mature plasma cells and other inflammatory cells, such as histiocytes, lymphocytes, and eosinophils. Here, we describe the mammographic and ultrasonographic findings of a case of an inflammatory pseudotumor of the breast in a 60-year-old woman. With the suspicion of malignancy, core needle biopsy and surgical excision confirmed the mass as being an inflammatory pseudotumor of the breast. 相似文献
4.
We present a case of perinephric myxoid pseudotumor of fat, a rare benign entity that often occurs in patients with non-neoplastic renal disease. In our case, an 80 year old man with end-stage renal disease was imaged over the course of 5 years during evaluation for renal transplantation. Imaging identified a left perinephric mass whose appearance over time and on different imaging modalities variably suggested a simple cyst, cystic neoplasm, and liposarcoma. Contrast enhanced examination was necessary to discern the solid nature of this mass, and ultimately, tissue sampling with histopathologic evaluation and molecular testing were required to make the diagnosis of myxoid pseudotumor of fat and exclude the imaging mimics. 相似文献
5.
Kato H Kanematsu M Kondo H Osada S Goshima S Yamada T Yamada Y Yokoyama R Hoshi H Moriyama N 《Journal of magnetic resonance imaging : JMRI》2004,20(3):501-505
We examined a 70-year-old male patient with an inflammatory pseudotumor of the liver mimicking a peripheral-type cholangiocellular carcinoma. Ferumoxide-enhanced magnetic resonance (MR) imaging revealed residual Kupffer cell function in liver parenchyma in and surrounding the inflammatory pseudotumor involvement, which suggested the diagnosis of inflammatory pseudotumor of the liver. We correlate the MR imaging and pathologic findings in this report. 相似文献
6.
Giorgio Ascenti Giovanni Zimbaro Silvio Mazziotti Michele Gaeta Salvatore Lamberto Emanuele Scribano 《European radiology》2001,11(12):2496-2499
The term "pseudotumor" is used to refer to several anatomic variants that can simulate a renal mass, the most frequent of which are hypertrophied column of Bertin, persistence of fetal lobation, and the dromedary or splenic hump. We describe the findings of power Doppler US after the ultrasound contrast agent (Levovist, Schering, Berlin, Germany) administration in 4 patients with a renal focal lesion in whom gray-scale and baseline power Doppler US was not able to certainly differentiate pseudotumor from neoplasm. 相似文献
7.
W. van der Weegen K. Brakel R. J. Horn J. A. Wullems H. P. Das P. Pilot R. G. Nelissen 《Skeletal radiology》2014,43(2):149-155
Objective
Follow-up of pseudotumors observed with metal-artefact reducing sequence (MARS)-magnetic resonance imaging (MRI) following metal-on-metal total hip arthroplasty (MoMTHA) depends on how severe these pseudotumors are graded. Several pseudotumor grading systems for MARS-MRI have emerged but little is known of their validity. We studied the intra- and interobserver reliability of three different pseudotumor grading systems in a single cohort of MoMTHA.Patients and methods
Two experienced musculoskeletal radiologists independently used three different pseudotumor grading systems for classifying MARS-MRI results of the same cohort of 42 MoMTHA patients (49 hips, mean follow-up 5.2 years). Intraobserver and interobserver reliability for each grading system was measured using Cohen’s kappa (κ). Variance in pseudotumor severity grading between systems was analyzed.Results
Intraobserver reliability on grading pseudotumor severity with the Anderson, Matthies, and Hauptfleisch grading system scored 0.47, 0.10, and 0.35 (observer 1), and 0.75, 0.38, and 0.42 (observer 2), respectively. Interobserver reliability scores for pseudotumor severity were 0.58, 0.23, and 0.34, respectively.Conclusions
Intraobserver reliability for grading pseudotumor severity on MARS-MRI ranged from poor to good, dependent on observer and grading system used. Interobserver reliability scored best with the Anderson system. A more succinct pseudotumor severity grading system is needed for clinical use. 相似文献8.
Nakamura Y Urashima M Nishihara R Matsuura A Bekku K Iguchi H Uesugi T Saegusa M Aramaki K 《Radiation Medicine》2007,25(10):541-547
Inflammatory pseudotumor (IPT) is a quasineoplastic lesion that most commonly involves the lung and the orbit; kidney involvement
is rare. We report a case of inflammatory pseudotumor of the kidney. The patient was a 61-year-old man who presented with
no symptoms. Nonenhanced computed tomography (CT) demonstrated an ill-defined, isodensity mass measuring 3.5 cm in the lower
portion of the left kidney. Contrast-enhanced CT showed that branches of the renal artery without encasement penetrated the
tumor; there was a little enhancement in the mass on the arterial phase and homogeneous enhancement on the venous phase. On
magnetic resonance imaging the mass showed intermediate signal intensity on T1-weighted images (T1WIs) and low signal intensity
on T2WIs. Most IPTs of the kidney appear as an ill-defined, hypovascular, homogeneous tumor on CT images, with variable signal
intensity on MRI T1WIs and low signal intensity on T2WIs. Our case had the same imaging findings, with branches of the renal
artery penetrating the tumor. If the renal tumor has these radiological findings, the tumor may be IPT. 相似文献
9.
OBJECTIVE: Hepatic biliary pseudotumor is a benign, rare, and poorly understood tumor that is typically diagnosed after aggressive surgical intervention. The purpose of this report is to describe the clinical and imaging features of this tumor in seven patients. CONCLUSION: Although secondary clinical features may rarely suggest inflammatory pseudotumor, the typical presenting symptom--painless obstructive jaundice--is indicative of malignancy. The imaging appearance of hepatic hilar biliary pseudotumor is also indistinguishable from that of cholangiocarcinoma. 相似文献
10.
J A Maldjian K I Norton G M Groisman P M Som 《AJNR. American journal of neuroradiology》1994,15(4):784
Inflammatory pseudotumor is a benign neoplasm composed of fibroblasts, histiocytes, and inflammatory cells. Its occurrence in the paranasal sinuses is rare. We report a case of a 15-year-old boy with a maxillary sinus inflammatory pseudotumor that simulated an aggressive neoplasm on CT scan. 相似文献
11.
Necrotic pseudotumor is a complication of metal-on-metal arthroplasty that has been reported with increasing frequency in
the last 5 years. It is believed to be the result of a hypersensitivity reaction to metal ions such as nickel, cobalt, or
chromium that are released in large quantities from these prostheses. The imaging appearance of a necrotic pseudotumor caused
by a metal-on-metal prosthesis, on 18F-FDG PET/CT or 99mTc-MDP bone scan has not been previously described in the literature. Our case demonstrates that a necrotic pseudotumor can
be detected incidentally in oncologic patients referred for an 18F-FDG PET/CT or a 99mTc-MDP bone scan, and recognizing this process is vital in preventing further tissue necrosis and patient morbidity, as the
offending prosthesis must be promptly removed. The imaging characteristics of a necrotic pseudotumor on PET/CT and bone scan
may also mimic a malignant process such as a necrotic sarcoma, and can represent a potential pitfall leading to a false positive
diagnosis in an oncologic patient. 相似文献
12.
Jae Hee Lee Kijun Kim Sung Woo Chung Yong Chul Choi Ahnhi Lee 《Korean journal of radiology》2001,2(4):231-234
The authors describe a rare case of inflammatory pseudotumor involving the clivus, where a soft tissue mass lesion, with extension into the prevertebral retropharyngeal space and the cavernous sinuses, was detected by CT and MRI. The mass resembled a malignant tumor or aggressive infectious lesion, and the final diagnosis of inflammatory pseudotumor was a diagnosis of exclusion, decided after histopathological examination. 相似文献
13.
Patnana M Sevrukov AB Elsayes KM Viswanathan C Lubner M Menias CO 《AJR. American journal of roentgenology》2012,198(3):W217-W227
OBJECTIVE: The purpose of this review is to describe the pathophysiologic findings, differential diagnosis, imaging features, and management of inflammatory pseudotumor in various locations throughout the body. CONCLUSION: Inflammatory pseudotumor is a rare benign process mimicking malignant processes and has been found in almost every organ system. Radiologists should be familiar with this entity as a diagnostic consideration to avoid unnecessary surgery. 相似文献
14.
David B. Stafford Johnson William Breidahl Joel S. Newman Kenneth Devaney Alan Yahanda 《Skeletal radiology》1997,26(8):501-504
Mesenchymal chondrosarcomas (MSCs) are a rare form of chondrosarcoma which usually arise in bone. Extraskeletal chondro-sarcomas
constitute a minority (14–25%) of MSCs. We describe the imaging features of an extraskeletal mesenchymal chondrosarcoma that
arose from the rectus abdominus muscle. 相似文献
15.
Inflammatory pseudotumor is a rare benign lesion mimicking malignancy both clinically and radiologically. An accurate diagnosis
is still difficult and is based on the histological examination. Since inflammatory pseudotumor is exceptionally rare in the
colon, this unexpected lesion can be mistaken for malignancy. We report the first case of inflammatory pseudotumor in the
colon that showed 18F-fluorodeoxyglucose (FDG) uptake and acted as the lead point causing colocolic intussusception. 相似文献
16.
Seok-Ho Yoon Sungsoo Lee Kyung Sook Jo Dong Hyun Lee Young-Sil An Joon-Kee Yoon Su Jin Lee 《Korean journal of radiology》2013,14(4):673-676
Mediastinal inflammatory pseudotumor is a rare benign disease with its capability for local invasion and rapid growth. We present a case of middle-mediastinal inflammatory pseudotumor and report its contrast-enhanced chest computed tomography, 18F-fluorodeoxyglucose positron emission tomography/computed tomography and pathologic findings. 相似文献
17.
Objective
To describe an “indirect” cervical nerve root injection technique with a dorsal approach that should carry less inherent risk than the “direct” cervical transforaminal injection approach, and to compare the immediate post-injection results of the two procedures. 相似文献18.
Jennifer Rodenberg Olaf Myhre Jensen Johnny Keller Ole S. Nielsen Cody Bünger Anne G. Jurik 《Skeletal radiology》1996,25(7):682-684
We describe a patient with polyostotic fibrous dysplasia and secondary malignant fibrous histiocytoma in a spinal lesion. 相似文献
19.
Yong Seuk Lee Sung Kon Kim Jung Ho Park Jong Woong Park Joon Ho Wang Young Bok Jung Jin Hwan Ahn 《Knee surgery, sports traumatology, arthroscopy》2007,15(8):1023-1027
We describe a novel double-bundle reconstruction method for ACL deficient knee. Grafts are tibialis allograft for AMB (anteromedial
bundle) and semitendinosus autograft for PLB (posterolateral bundle). Femoral fixations are done by Bio-TransFix for AMB and
EndoButton for PLB. Tibial fixations are done by Bio-interference screw for AMB at 60–70° knee flexion and secure the PLB
and remnant AMB graft simultaneously onto anteromedial aspect of tibia at 10–20° knee flexion with spiked washer and screw.
With our technique, graft lengths are not restricted and we provide strong femoral and tibial fixation if it is compared with
previous techniques. 相似文献
20.
D. Karasick Mark E. Schweitzer Markku Miettinen Brian J. O’Hara 《Skeletal radiology》1996,25(3):263-267
Amyloid-producing plasmacytoma of bone is a rare myeloma variant. We describe two patients with plasmacytomas of bone with
extensive amyloid deposition and metaplastic bone formation which can be confused on imaging with osteosarcoma. Histologic
confirmation was obtained in both cases. Metaplastic new bone formation was identified within these lesions and appears to
be responsible for the radiographic appearances. 相似文献