scholarly journals Radiological Evaluation of a Chondromyxoid Fibroma

2017 ◽  
Vol 2 (2) ◽  
Keyword(s):  
Bone Tumors ◽  
Distal Femur ◽  
Proximal Tibia ◽  
Radiological Evaluation ◽  
Chondromyxoid Fibroma ◽  
Resonance Imaging ◽  
X Ray ◽  
Radiological Features ◽  
Cartilaginous Tumor ◽  
Magnetic Resonance Imaging Mri

Chondromyxoid fibroma (CMF) is a very rare benign cartilaginous tumor representing less than 0.5% of all bone tumors while also being the rarest cartilaginous bone tumor. Common locations of occurrence include the metaphysical region of the proximal tibia and distal femur. We report a case of a 10-year-old female affected by a CMF of the left lower tibia. The radiological features demonstrated by X-ray and magnetic resonance imaging (MRI) are discussed.

scholarly journals Juxtacortical Clavicular Chondrosarcoma: Diagnostic Dilemmas: Case Report and Review of Literature

2013 ◽  
Vol 7 ◽  
pp. CMO.S10542 ◽  
Author(s):  
E.I. Efremidou ◽  
A. Oikonomou ◽  
E. Pavlidou ◽  
G. Drosos ◽  
A. Koutsopoulos ◽  
...  
Keyword(s):  
Bone Scan ◽  
Three Dimensional ◽  
Accurate Diagnosis ◽  
Review Of Literature ◽  
Resonance Imaging ◽  
X Ray ◽  
Cartilaginous Tumor ◽  
Accurate Preoperative Diagnosis ◽  
Chest X Ray ◽  
Magnetic Resonance Imaging Mri

Juxtacortical chondrosarcoma is a rare primary malignant cartilaginous tumor accounting for 0.2% of all bone tumors. Wide surgical resection is the treatment of choice for juxtacortical chondrosarcomas. Accurate preoperative diagnosis is important in ensuring appropriate management, staging, and treatment of the patient. A combination of radiographs, three-dimensional imaging with computerized tomography (CT) scan and magnetic resonance imaging (MRI) can typically allow accurate diagnosis of juxtacortical chondrosarcomas. Bone scan and chest x-ray or CT chest scans are indicated for appropriate staging of the patient. Pet scan, ultrasound, bone scan, etc. are not typically needed for the diagnosis. Certainly, pulmonary imaging and bone scan are required for staging and could be commented upon.

scholarly journals GCT of knee treated with modular prosthesis-case presentation

2019 ◽  
Vol 2 (1) ◽  
pp. 18-22
Author(s):  
Alexandru Papuc ◽  
Ioan Mihai Japie ◽  
Traian Ciobanu ◽  
Octavian Nutiu ◽  
Dragos Radulescu ◽  
...  
Keyword(s):  
Bone Tumors ◽  
Benign Tumor ◽  
Distal Femur ◽  
Proximal Tibia ◽  
Metastatic Potential ◽  
Left Knee ◽  
Case Presentation ◽  
Previous Medical History ◽  
Malignancy Potential

AbstractThe GCT is an aggressive benign tumor with metastatic potential, most often within the lungs in 2-3% of the patients. It makes about 5% of total bone tumors and about 15% of total benign bone tumors.The maximum incidence occurs between 30 and 40 years old, most frequently affecting the long bones epiphysis (distal femur, proximal tibia, and distal radius).We report the case of a 50-year-old female, with no previous medical history, admitted in the emergency department (ED) for significant pain and functional impairment of the left knee. Clinical examination and imaging tests established the diagnosis of distal femoral tumor.The patient underwent surgical segmental resection of the tumor within oncological limits and subsequent arthroplasty with cemented modular tumoral prosthesis was performed.Even if the GCT is a benign tumor, it has an aggressive behavior and malignancy potential with an important impact on quality of life. Due to localization, this type of tumor can quickly manifest clinically, which allows an early diagnosis and a less invasive surgical technique.

scholarly journals The Assessment of the Condition of Knee Joint Surfaces with Acoustic Emission Analysis

Sensors ◽  
2021 ◽  
Vol 21 (19) ◽  
pp. 6495
Author(s):  
Bartłomiej Sawaryn ◽  
Natalia Piaseczna ◽  
Szymon Sieciński ◽  
Rafał Doniec ◽  
Konrad Duraj ◽  
...  
Keyword(s):  
Knee Joint ◽  
Knee Injury ◽  
Knee Joints ◽  
Resonance Imaging ◽  
Emission Analysis ◽  
X Ray ◽  
Joint Surfaces ◽  
Magnetic Resonance Imaging Mri ◽  
Leg Movements ◽  
Acoustic Emission Analysis

The knee joint, being the largest joint in the human body, is responsible for a great percentage of leg movements. The diagnosis of the state of knee joints is usually based on X-ray scan, ultrasound imaging, computerized tomography (CT), magnetic resonance imaging (MRI), or arthroscopy. In this study, we aimed to create an inexpensive, portable device for recording the sound produced by the knee joint, and a dedicated application for its analysis. During the study, we examined fourteen volunteers of different ages, including those who had a knee injury. The device effectively enables the recording of the sounds produced by the knee joint, and the spectral analysis used in the application proved its reliability in evaluating the knee joint condition.

scholarly journals Chemical Modifications of Porous Shape Memory Polymers for Enhanced X-ray and MRI Visibility

Molecules ◽  
2020 ◽  
Vol 25 (20) ◽  
pp. 4660
Author(s):  
Grace K. Fletcher ◽  
Landon D. Nash ◽  
Lance M. Graul ◽  
Lindy K. Jang ◽  
Scott M. Herting ◽  
...  
Keyword(s):  
Shape Memory ◽  
Medical Devices ◽  
Shape Memory Polymer ◽  
Shape Memory Polymers ◽  
Tissue Scaffolds ◽  
Resonance Imaging ◽  
Clinical Imaging ◽  
X Ray ◽  
Device Development ◽  
Magnetic Resonance Imaging Mri

The goal of this work was to develop a shape memory polymer (SMP) foam with visibility under both X-ray and magnetic resonance imaging (MRI) modalities. A porous polymeric material with these properties is desirable in medical device development for applications requiring thermoresponsive tissue scaffolds with clinical imaging capabilities. Dual modality visibility was achieved by chemically incorporating monomers with X-ray visible iodine-motifs and MRI visible monomers with gadolinium content. Physical and thermomechanical characterization showed the effect of increased gadopentetic acid (GPA) on shape memory behavior. Multiple compositions showed brightening effects in pilot, T1-weighted MR imaging. There was a correlation between the polymeric density and X-ray visibility on expanded and compressed SMP foams. Additionally, extractions and indirect cytocompatibility studies were performed to address toxicity concerns of gadolinium-based contrast agents (GBCAs). This material platform has the potential to be used in a variety of medical devices.

Complete Palmar Dislocation of the Lunate in Rheumatoid Arthritis

1996 ◽  
Vol 21 (3) ◽  
pp. 384-387 ◽  
Author(s):  
M. ARNER ◽  
K. JONSSON ◽  
P. ASPENBERG
Keyword(s):  
Bone Structure ◽  
Bone Cells ◽  
X Rays ◽  
Resonance Imaging ◽  
Rheumatoid Patient ◽  
X Ray ◽  
Normal Bone ◽  
Cellular Events ◽  
Magnetic Resonance Imaging Mri ◽  
Mri Changes

We report a case of complete palmar dislocation of the lunate in a rheumatoid patient. X-rays showed a normal bone structure of the lunate without sclerosis or collapse and on MRI an almost normal signal intensity was found. The lunate was removed. Histological examination showed complete necrosis of both marrow and bone cells, and tetracycline labelling showed no fluorescence. This case illustrates that neither X-ray nor magnetic resonance imaging (MRI) can detect complete bone necrosis. When X-ray or MRI changes do occur, these are indications of cellular events following some degree of spontaneous revascularization.

scholarly journals Dual Energy X-Ray Absorptiometry of the Distal Femur May Be More Reliable than the Proximal Tibia in Spinal Cord Injury

2009 ◽  
Vol 90 (5) ◽  
pp. 827-831 ◽  
Author(s):  
Leslie R. Morse ◽  
Antonio A. Lazzari ◽  
Ricardo Battaglino ◽  
Kelly L. Stolzmann ◽  
Kirby R. Matthess ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Distal Femur ◽  
Proximal Tibia ◽  
Dual Energy ◽  
X Ray ◽  
Cord Injury

scholarly journals Sequential MR Images and Radiographs of Epiphyseal Osteomyelitis in the Distal Femur of an Infant

2013 ◽  
Vol 2013 ◽  
pp. 1-4
Author(s):  
Hitomi Hara ◽  
Toshihiro Akisue ◽  
Teruya Kawamoto ◽  
Masahiro Kurosaka
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Early Diagnosis ◽  
Early Phase ◽  
Therapeutic Response ◽  
Distal Femur ◽  
Acute Osteomyelitis ◽  
Resonance Imaging ◽  
Mr Images ◽  
Magnetic Resonance Imaging Mri

Magnetic resonance imaging (MRI) plays an important role in the diagnosis of osteomyelitis, especially during the early phase of the disease. The findings of sequential MRIs during the course of treatment in acute osteomyelitis in children have not yet been reported in the literature. We present a case of acute epiphyseal osteomyelitis in the distal femur of an infant. We monitored imaging changes by sequential MRIs and radiographs. MRI was more useful than radiograph for early diagnosis and evaluation of therapeutic response.

scholarly journals A Case Of Atypical Presentation of Thoracic Osteomyelitis & Paraspinal Abscess

2020 ◽  
Vol 11 (2) ◽  
Author(s):  
Utkarsh Acharya
Keyword(s):  
Bone Scan ◽  
Medical Intervention ◽  
Chief Complaint ◽  
Resonance Imaging ◽  
Anterior Portion ◽  
X Ray ◽  
Right Lobe ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
Paraspinal Abscess

Here presented is a case involving a 44-year-old man with a chief complaint of sharp lateral right-sided rib pain with notable radiation to the anterior portion of the thorax and minor radiation around the lateral back. The etiology of the pain and radiculopathy, which was initially attributed to a right-sided rib fracture, was later accurately credited to a paraspinal abscess discovered on a lateral X-ray of the thoracic spine. Subsequently, studies including Magnetic Resonance Imaging (MRI), Computed Tomography (CT), and bone scan all confirmed the diagnosis of a paraspinal abscess between the right lobe and its neighboring T9 and T10 vertebrae. The mass was biopsied and methicillin sensitive Staphylococcus aureus was isolated. Appropriate surgical and medical intervention was possible due to the early diagnosis of the abscess.

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