scholarly journals Magnetic resonance imaging features of large joint tuberculous arthritis

2021 ◽  
Vol 0 ◽  
pp. 1-6
Author(s):  
Shalini Agarwal ◽  
Lalit Mohan ◽  
Preeti Lamba ◽  
Sanjay Kumar
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Signal Intensity ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Tuberculous Arthritis ◽  
Large Joint ◽  
Rim Enhancement ◽  
Grade Iii

Objectives: Large joint monoarticular tuberculous involvement is rare. It may not be associated with classical clinical features. Hence, it is difficult to differentiate from other conditions similarly involving the large joints. Our study aimed to study the characteristics of large joint monoarthritis on magnetic resonance imaging. Material and Methods: We reviewed the radiology database for large joint tubercular arthritis cases over 2 years. In total, there were 21 patients. Male: female ratio was 11:10. The mean age was 34.14 ± 15.82 years with a range of 8–57 years. We diagnosed tuberculosis (TB) based on histopathological examination or response to antitubercular therapy. Results: Knee was most frequently involved (47%; n = 10) followed by wrist and elbow in 3 patients each (14.28%). Concomitant active pulmonary TB was absent in all of our patients. Grade I synovial thickening was seen in eight patients, Grade II in four, and Grade III in seven. It was uniform in all the cases. Grade 1 bone marrow edema was seen in 06 patients, Grade III in 13, and none in 02. There was soft-tissue edema in 12 patients and soft-tissue collection in 2. Bone erosions were seen in 16 patients with rim enhancement in nine patients. Central erosions were seen in eight, while central and peripheral erosions in eight. On T1-weighted images, the signal intensity was hyperintense 10 and isointense in 11 patients. While on T2-weighted images, it was hyperintense in 10, isointense in nine, and hypointense in two patients. Conclusion: Large joint monoarticular tuberculous arthritis can present variably. Large erosions with rim enhancement, the signal intensity of synovium on T1 weighted and T2 weighted, uniformity of synovial thickening, and enhancement pattern of abscesses can help make a diagnosis.

Accessory Soleus Muscle

2004 ◽  
Vol 94 (6) ◽  
pp. 587-589 ◽  
Author(s):  
Tuba Karagülle Kendi ◽  
Aziz Erakar ◽  
Olcay Oktay ◽  
H. Yusuf Yildiz ◽  
Yener Saglik
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Soleus Muscle ◽  
Clinical Presentation ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Tissue Mass ◽  
Anatomical Variant ◽  
Muscle Magnetic Resonance Imaging

Accessory soleus muscle is an uncommon anatomical variant that may present as a soft-tissue mass in the posteromedial region of the ankle. It is congenital in origin but usually presents in the second or third decade of life. Although it is a rare entity, accessory soleus muscle should be included in the differential diagnosis of soft-tissue swelling of the ankle. Awareness of the clinical presentation and specific findings of computed tomography, magnetic resonance imaging, and electromyography help with diagnosis without surgical exploration. We describe a 30-year-old patient with accessory soleus muscle. Magnetic resonance imaging features of the case are described, and the literature is briefly reviewed. (J Am Podiatr Med Assoc 94(6): 587–589, 2004)

Tumour and tumour-like conditions of the soft tissue: magnetic resonance imaging features differentiating benign from malignant masses

1992 ◽  
Vol 65 (769) ◽  
pp. 14-20 ◽  
Author(s):  
George Hermann ◽  
Ibrahim Fikry Abdelwahab ◽  
Theodore T. Miller ◽  
Michael J. Klein ◽  
Michael M. Lewis
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Imaging Features ◽  
Resonance Imaging

Magnetic Resonance Imaging in Retropharyngeal Tendinitis

Cephalalgia ◽  
1994 ◽  
Vol 14 (4) ◽  
pp. 266-269 ◽  
Author(s):  
K Ekbom ◽  
J Tothall ◽  
K Annell ◽  
J Träff
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cervical Spine ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Signal Intensity ◽  
Soft Tissues ◽  
Resonance Imaging ◽  
X Ray ◽  
Soft Tissue Swelling ◽  
Retropharyngeal Tendinitis

Seven consecutive patients with acute retropharyngeal tendinitis underwent plain X-ray and magnetic resonance imaging (MRI) of the cervical spine. All seven had marked soft tissue swelling anterior to C1 and C2 on plain X-ray, and soft tissue calcification at this level was present in five of them. On MRI, there was markedly increased signal intensity on T2-weighted images in the acute phase and intermediate signal intensity on T1-weighted images, anterior to the level of C1 and C2, often extending as far down as C6. These changes correlated well with the soft tissue swelling seen on conventional X-ray of the cervical spine. The maximum mid-sagittal thickness of the soft tissues was significantly greater in the tendinitis patients ( p < 0.001) than in 12 control subjects free of symptoms from the pharynx or the cervical spine. Treatment with non-steroidal anti-inflammatory drugs rapidly alleviated symptoms, and at follow-up MRI showed regression or complete restitution of the changes. In conclusion, MRI can visualize the edematous changes in the longus colli muscle and adds useful diagnostic information in suspected cases of acute retropharyngeal tendinitis.

scholarly journals Distinguishing magnetic resonance imaging features between idiopathic hypertrophic pachymeningitis and secondary hypertrophic pachymeningitis

2019 ◽  
Vol 13 (3) ◽  
pp. 113-119
Author(s):  
Saksith Warittikoon ◽  
Ketsuda Jakchairoongruang
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Signal Intensity ◽  
Specific Treatment ◽  
Inflammatory Disorder ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Hypertrophic Pachymeningitis ◽  
Weighted Image ◽  
Significant Difference

Abstract Background Hypertrophic pachymeningitis (HP) is a rare chronic inflammatory disorder characterized by marked fibrous thickening of the cerebral and/or spinal dura mater. This condition is caused by infection, inflammation, autoimmune disorder, neoplasms, or idiopathic. Magnetic resonance imaging (MRI) may play an important role in differentiating idiopathic HP from secondary HP, may avoid unnecessarily invasive dural biopsy, and prompt specific treatment. Objective To determine the specific MRI findings for differentiation between idiopathic HP and secondary HP. Method A total of 34 patients underwent MRI of the brain and cervical spine from January 2003 to December 2015. In all, 23 patients were diagnosed idiopathic HP and 11 patients were secondary HP. Demographic data and imaging findings reveal the following: configuration, thickness, signal intensity on T1-weighted image (T1WI), T2-weighted image (T2WI), and enhancement pattern of the lesions. The data were analyzed by T-test and Fisher’s exact test. Result Secondary HP were significantly located at anterior and middle cranial fossa (P = 0.033). There is no significant difference of lesions in configurations, T1 and T2 signal intensity and patterns of enhancement. There was significant and exclusive difference in T2 hypointense/dark intensity and homogeneous enhancement in idiopathic HP (75%, P = 0.044). Conclusions MRI may play a complimentarily important role in distinguishing idiopathic HP from secondary HP. Idiopathic HP is probably preferred diagnosis in the lesions with T2-rim pattern and T2 hypointense/dark intensity with homogeneous enhancement.

Magnetic Resonance Imaging Features of Intramedullary Spinal Cord Tumors with Pathological Correlations

2013 ◽  
Vol 19 (1) ◽  
pp. 51-66
Author(s):  
Jureerat Thammaroj ◽  
Amnat Kitkhandee ◽  
Parinyaporn Tumkot ◽  
Pichayen Duangtongpol ◽  
Sakda Waraosawapati
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Signal Intensity ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Spinal Cord Tumors ◽  
Intramedullary Spinal Cord ◽  
Cystic Component ◽  
Spinal Cord Ependymoma

Objective: The purpose of this study was to determine characteristic imaging findings of intramedullary spinal cord tumor in magnetic resonance imaging (MRI). Material and Methods: We retrospectively analyzed MRI in 15 patients with histologicaly proven intramedullary spinal cord tumors. The demographic data, MRI findings with histological findings were recorded in terms of age, location, length, morphology, signal intensity, the presence or absence of cyst and hemorrhage, enhancement pattern, other associated findings, necrosis, vascular proliferation and WHO grading. Results: Among the 15 patients, spinal cord ependymomas were eccentric 75%, well-define border 62.5% and cervicothoracic spine located 37.5%. Spinal cord astrocytomas were eccentrically located and ill-define border 85.7%, cervicothoracic and thoracic spine located 28.5%. A cystic component was seen in 87.5% of spinal cord ependymoma and 71.5% of astrocytomas. Intratumoral hemorrhage occurred in 75% of spinal cord ependymomas, and 57.1% of astrocytomas. In 12.5% of spinal cord ependymomas, a curvilinear low T2 signal, suggesting marginal hemorrhage, was seen at the upper and/or lower margins of the tumors. Twenty-five percent of spinal cord ependymoma and 57.2% of astrocytomas showed heterogeneous enhancement, while in 12.5% of spinal cord ependymomas, enhancement was homogeneous. Conclusion: Although no statistically significant characteristic MRI feature to distinguish between ependymoma and astrocytoma is detected. By percentage we found that border, length and signal intensity of tumors may help diagnosis. With pathological correlation, all of spinal cord ependymomas are mark hypervascular tumor, but astrocytomas never showed.

Magnetic resonance imaging features of esthesio - neuroblastoma in three dogs and one cat

2016 ◽  
Vol 44 (05) ◽  
pp. 333-340 ◽  
Author(s):  
Antje Hartmann ◽  
Eberhard Ludewig ◽  
Kerstin von Pückler ◽  
Martin Kramer ◽  
Martin J. Schmidt ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Nasal Cavity ◽  
Signal Intensity ◽  
Magnetic Resonance Images ◽  
Cribriform Plate ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Facial Bones ◽  
Cystic Component

SummaryObjective: Esthesioneuroblastoma is a rare malignant intranasal tu - mor that originates from the olfactory neuroepithelium of the upper nasal cavity, and can destroy the cribriform plate and expand into the neurocranium. Descriptions of the magnetic resonance features of esthesioneuroblastomas in animals are scarce. The objectives of this study were to report the magnetic resonance imaging features of esthesioneuroblastomas in order to determine distinct imaging characteristics that may help distinguish it from other intracranial tumor types. Material and methods: Magnetic resonance images of four patients with confirmed esthesioneuroblastomas were reviewed and compared with previously reported cases. Results: The esthesioneu - roblastomas appeared as oval-shaped, solitary lesions in the caudal nasal cavity that caused osteolysis of the cribriform plate and extended into the brain in all cases. Signal intensity was variable. Contrast enhancement was mild and varied from homogeneous to heterogeneous. A peripheral cystic component was found in two patients and was reported in only one previous case. Mass effect and white matter edema were marked to severe. Osteolysis of facial bones and extension into the facial soft tissues or retrobulbar space were not present in any of the cases, although this has been reported in the litera ture. Conclusion: A definitive diagnosis of esthesioneuroblastoma based on signal intensity or contrast behavior was not possible. Nevertheless, the presence of a mass in the caudal nasal cavity with extension into the neurocranium seems to be a feature highly suspicious of esthesioneuroblastoma. In contrast to other extra-cranial le - sions, the extra-cranial mass was relatively small and destruction of facial bones seems to be rare.

External snapping hip: classification based on magnetic resonance imaging features and clinical correlation

2020 ◽  
pp. 112070002094413
Author(s):  
Chul-Ho Kim ◽  
Seul Ki Lee ◽  
Jun Ho Kim ◽  
Pil Whan Yoon
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Symptom Duration ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Mri Findings ◽  
Snapping Hip ◽  
Number Of Patients ◽  
External Snapping Hip

Background: With the increasing sport population, the number of patients with external snapping hip (ESH) has also increased. To detect and visualise pathological soft tissue changes, magnetic resonance imaging (MRI) has been 1 of the most useful modalities. However, only limited studies have investigated MRI and its clinical value in the treatment of ESH in the past. Materials and methods: Between May 2017 and November 2018, 104 patients were diagnosed with ESH at our institution. We excluded patients who did not undergo an MRI ( n = 11), had complaint of bilateral symptom ( n = 17), were not diagnosed hip problems previously (n = 2), and were lost–follow-up within 6 months ( n = 19). After applying the exclusion criteria, 55 patients remained. We classified the patients into 2 groups according–MRI findings: tensed iliotibial band (ITB) and hypertrophied gluteus maximus (GM). We investigated the clinical findings, such as mean age, symptom duration, pain score, grading based on symptom severity, and other radiological findings such as soft tissue signal change and ITB thickness. The variables were compared between the groups. Results: Between the 2 groups defined by MRI findings, the group characterised by tense ITB showed a relatively short symptom duration than the hypertrophied GM group ( p < 0.001). No significant differences in the other variables were found between the groups. Conclusions: ESH has 2 types of MRI features. Compared with the hypertrophied GM group, the tense ITB group showed a shorter symptom duration and a more reversible status.

scholarly journals Kaposiform haemangioendothelioma: magnetic resonance imaging features in 64 cases

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Suhua Peng ◽  
Chunchao Xia ◽  
Kaiying Yang ◽  
Siyuan Chen ◽  
Yi Ji
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Severe Thrombocytopenia ◽  
Imaging Features ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Cutaneous Lesions ◽  
Group 6 ◽  
Weighted Sequences

Abstract Background Kaposiform haemangioendothelioma (KHE) is a rare, locally aggressive disorder. The presenting and imaging features of KHE can overlap with other vascular anomalies and tumours. We aimed to analyse the imaging findings of KHE disorder and highlight features most suggestive of this diagnosis. Methods The clinical features and imaging findings were retrospectively reviewed in 64 patients with pathological diagnosis of KHE. Results Of the 64 patients diagnosed with KHE, 36 patients were < 6 months and 28 patients were ≥ 6 months. The most common presenting features were Kasabach-Merritt phenomenon (KMP, 42.2 %), visible cutaneous lesions (90.6 %), oedema or swelling (43.8 %) and destructive changes or remodelling of adjacent bone (42.2 %). Compared with patients in the group ≥ 6 months, patients in the group < 6 months have higher odds of KMP (P = 0.000), infiltrative lesion with ill-defined borders (P = 0.044). The group ≥ 6 months have higher odds of destructive changes or remodelling of adjacent bone (P = 0.002). In all patients, the lesions in all of the 64 patients were hypointense or isointense compared with muscle on T1-weighted sequences, and hyperintense on T2-weighted or inversion-recovery sequences, nine patients (14.1 %) showed vascularity. There were 28 patients (43.8 %) with characteristic enhancing and infiltrative soft-tissue thickening. Conclusions Presence of visible cutaneous lesions with ill-defined borders, destructive changes or remodelling of adjacent bone, severe thrombocytopenia and consumptive coagulopathy should favour the diagnosis of KHE.

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