scholarly journals Imaging features of hemangioma in long tubular bones

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Lei Cao ◽  
Jin-Xu Wen ◽  
Shu-Man Han ◽  
Hui-Zhao Wu ◽  
Zhi-Gang Peng ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Plain Radiograph ◽  
Ground Glass Opacity ◽  
Plain Radiography ◽  
Long Bone ◽  
Imaging Features ◽  
Mri Imaging ◽  
Soft Tissue Density ◽  
Tissue Density ◽  
Hyperintense Signal

Abstract Background To investigate the imaging features of hemangiomas in long tabular bones for better diagnosis. Methods Twenty-four patients with long bone hemangiomas confirmed by pathology were enrolled. Nineteen patients had plain radiography, fourteen patients had computed tomography (CT) and eleven had magnetic resonance imaging (MRI). The hemangioma was divided into medullary [13], periosteal [6] and intracortical type [5]. Results Among 19 patients with plain radiography, eleven patients were medullary, three periosteal, and five intracortical. In the medullary type, the lesion was primarily osteolytic, including five cases with irregular and unclear rims and one lesion having osteosclerotic and unclear rims. In three patients with the periosteal type, the lesion had clear rims with involvement of the cortical bone in the form of bone defect, including two cases with local thickened bone periosteum and one case having expansile periosteum. Five intracortical hemangiomas had intracortical osteolytic lesions with clear margins. Among 14 patients with CT imaging, 8 cases were medullary, three periosteal, and three intracortical. Among 8 medullary hemangiomas, one had ground glass opacity, and seven had osteolytic, expansile lesions like soft tissue density with no calcification. In three periosteal cases, the lesion was osteolytic with thickened periosteum and narrowed medullary cavity. In three intracortical hemangiomas, the lesion was of even soft tissue density with no calcification. Among 11 patients with MRI imaging, seven were medullary, two periosteal, and two intracortical. Among 7 medullary lesions, six were of hypointense signal on T1WI and hyperintensesignal on T2 WI. In two periosteal cases, the periosteum was thickened, with one case being of equal signal, and the other having no signal. Two intracortical hemangiomas were both of slightly low signal on T1WI but hyperintense signal on T2WI. Conclusions The long bone hemangiomas had characteristic cystic honeycomb-like presentations in plain radiograph. CT and MRI imagings are helpful for diagnosis of hemangiomas in long bone.

scholarly journals Imaging Features and Floating-Ice Sign of Primary Lymphoma of the Bone

2020 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Bao-Hai Yu ◽  
Tao Sun ◽  
Lei Cao ◽  
Shu-Man Han ◽  
Wen-Juan Wu ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Long Bone ◽  
Bone Lesions ◽  
Imaging Features ◽  
Primary Bone Lymphoma ◽  
Hyperintense Signal ◽  
Soft Tissue Masses ◽  
Primary Bone ◽  
Hypointense Signal ◽  
Bone Lymphoma

Background: The imaging presentation of primary bone lymphoma is unclear. Objectives: The present study aimed to investigate the imaging presentations of primary bone lymphoma especially a specific “floating-ice” sign. Patients and Methods: Forty one patients with primary bone lymphoma confirmed by pathology with 27 males and 14 females and an age range of 2 - 76 (mean = 40) years were enrolled. The clinical and imaging data were analyzed. Results: The tumor involved long bones in 17 cases, flat bones in 12, spine in eight and irregular bones in four cases. The imaging presentations were divided into five types: infiltrative type in nine cases (22%), osteolytic in 14 cases (34.1%), osteosclerotic in four cases (9.8%), mixed in 11 cases (26.8%) including four cases with a “floating-ice” sign and cystic in three cases (7.3%). In plain radiography, only three of four long bone lesions in children had a varying degree of periosteal reaction. Among 20 cases with CT scanning, sixteen had soft tissue masses, seventeen had ill-defined margins, and three had well-defined margins with sclerotic rims. Among twelve patients with MRI, ten had soft tissue masses with well-defined margins. MRI demonstrated a greater extent of lesion than CT. In MRI T1 weighted image (T1 WI), isointense signal was seen in three cases, hypointense signal in five and mixed signal in four. In T2 WI, isointense and hypointense signal was detected in five cases, hyperintense signal in three and mixed hyperintense signal in four. Conclusion: Primary bone lymphoma occurs most frequently in long and flat bones as infiltrative osteolytic destruction, and combined plain radiographs, CT and MRI help obtain a correct diagnosis.

scholarly journals Imaging features of a rare case of scapuloiliac dysostosis (Kosenow syndrome) in an ambulatory child

2011 ◽  
Vol 15 (1) ◽  
pp. 6
Author(s):  
John Joseph ◽  
Harish Narayanan ◽  
Jacob Varghese ◽  
Harish Babu ◽  
A Praveen
Keyword(s):  
Rare Case ◽  
Interesting Case ◽  
Plain Radiography ◽  
Long Bone ◽  
Imaging Features ◽  
Mri Findings ◽  
Skeletal Abnormalities ◽  
Main Components ◽  
Bone Anomalies ◽  
Ct And Mri

Scapuloiliac dysostosis, also known as pelvis-shoulder dysplasia and Kosenow syndrome, is a rare skeletal dysplasia described first by Kosenow et al. in 1970. The main components of the syndrome are varying degrees of bilateral iliac and scapular hypoplasia. Various other skeletal abnormalities including exaggerated lumbar lordosis, and clavicular, vertebral, rib and long bone anomalies and extra-skeletal abnormalities, most commonly those of eye and ear, have also been reported. We report the plain radiography, CT and MRI findings of an interesting case of the syndrome.

Fungal rhinosinusitis

2000 ◽  
Vol 114 (1) ◽  
pp. 76-80 ◽  
Author(s):  
V. J. Lund ◽  
G. Lloyd ◽  
L. Savy ◽  
D. Howard
Keyword(s):  
Soft Tissue ◽  
Fungal Infections ◽  
Bone Erosion ◽  
Imaging Modality ◽  
Diagnostic Specificity ◽  
Soft Tissue Density ◽  
Tissue Density ◽  
Non Invasive ◽  
Fungal Rhinosinusitis ◽  
Scanning Technique

Fungal infections in both their invasive and non-invasive forms can prove difficult to diagnose. The often characteristic appearances on imaging are of great assistance. CT is the primary imaging modality and is probably more accurate than MRI in diagnostic specificity and determining the extent of bone erosion. However this may require a modified scanning technique to adequately demonstrate the typical soft tissue density variations of fungi. MRI should be used to supplement CT when intra-cranial or intra-orbital extension is suspected.

“Aggressive” Renal Angiomyolipoma

1996 ◽  
Vol 37 (3P2) ◽  
pp. 927-932 ◽  
Author(s):  
G. Cittadini ◽  
F. Pozzi Mucelli ◽  
F. M. Danza ◽  
L. E. Derchi ◽  
R. S. Pozzi Mucelli
Keyword(s):  
Soft Tissue ◽  
Lymph Nodes ◽  
Venous Thrombosis ◽  
Fatty Infiltration ◽  
Vena Cava ◽  
Renal Angiomyolipoma ◽  
Soft Tissue Density ◽  
Tissue Density ◽  
Associated Lesions ◽  
Renal Hilum

Purpose: We describe the US and CT examinations of 4 patients with renal angiomyolipoma with an “aggressive” appearance, and review the literature. Material and Methods: The imaging findings in 4 patients with benign renal angiomyolipomas associated with thrombosis of the renal vein and/or inferior vena cava are presented. In one case, enlarged lymph nodes at the renal hilum were found. Results: CT demonstrated fat densities within both tumor and thrombus. In one patient, small lymph nodes with low density internal areas were detected in the para-aortic region. When considering our patients together with those reported in the literature, we found that most angiomyolipomas with venous invasion were large and centrally located within the kidney. Venous thrombosis was observed in 9 lesions of the right kidney, and in only 4 of the left one; detection of the site of origin was impossible in one case. One patient only had symptoms due to the thrombus; 10 had problems due to the tumor; and 3 were asymptomatic. Only 4 patients with pararenal enlarged lymph nodes have been reported on in the imaging literature. Fat-containing nodes were detected by CT in one case only; the others had enlarged nodes of soft-tissue density. In one patient the diagnosis of hamartomatous lymph node invasion was established by angiography. Conclusion: In patients with renal angiomyolipoma, demonstration of both fatty thrombus and the fatty infiltration of lymph nodes of the renal hilum cannot be regarded as an indication of malignancy, but only of local aggressive behavior. Although surgery is commonly contemplated to prevent symptoms from venous thrombosis, conservative treatment seems possible. Detection of enlarged lymph nodes of soft tissue density may cause difficult diagnostic problems, with the diagnosis addressed only by the presence of associated lesions. Increased awareness that renal angiomyolipoma can sometimes appear “aggressive” could help to prevent such lesions from being considered malignant, and thus avoid surgical confirmation of their nature.

Ultrasonography and Computed Tomography in Adenomyomatosis of the Gallbladder

1985 ◽  
Vol 26 (6) ◽  
pp. 689-692 ◽  
Author(s):  
N. Izumi ◽  
W. Koyama ◽  
T. Irie ◽  
H. Miyakawa ◽  
Y. Ito ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Soft Tissue ◽  
Free Space ◽  
Gallbladder Wall ◽  
Diffuse Type ◽  
Soft Tissue Density ◽  
Characteristic Appearance ◽  
Tissue Density ◽  
Gallbladder Fossa

Ultrasonography and computed tomography were performed in 4 patients with adenomyomatosis of the gallbladder of segmental or diffuse type. Cholecystectomy was performed in all cases, and the diagnosis of adenomyomatosis was confirmed histopathologically. Ultrasonography revealed diffuse or segmental thickening of the gallbladder wall with small intramural diverticula. Small stones were also found. The characteristic findings of adenomyomatosis at computed tomography were soft tissue density masses in the gallbladder fossa, associated with a well-delineated, distinct tumor-free space between the mass and the liver, and with small intramural diverticula and calcified stones within the mass. Ultrasonography and computed tomography demonstrate a characteristic appearance of adenomyomatosis.

scholarly journals Diagnostic efficacy of high-resolution computed tomography findings in patients of chronic suppurative otitis media atticoantral type

2020 ◽  
Vol 6 (10) ◽  
pp. 1854
Author(s):  
Nikki Gajjar ◽  
Neena Bhalodiya ◽  
Simple Bhadania
Keyword(s):  
Soft Tissue ◽  
Temporal Bone ◽  
Facial Canal ◽  
Soft Tissue Density ◽  
High Resolution Computed Tomography ◽  
Suppurative Otitis Media ◽  
Tissue Density ◽  
Facial Canal Dehiscence ◽  
Operative Findings ◽  
Canal Dehiscence

<p><strong>Background: </strong>High resolution computed tomography (HRCT) provides information about anatomy and pathology of temporal bone and middle ear cleft, thus becoming important imaging modality in diagnosis and pre-operative planning in patients of chronic suppurative otitis media (attico-antral) CSOM (AA) type. The aim of study was to study disease extension and plan surgery accordingly in patients of CSOM (AA) and to study correlation between the HRCT findings and intra-operative findings of CSOM (AA) like soft tissue density mass, ossicular chain erosion, facial canal dehiscence, semi-circular canal erosion.</p><p><strong>Methods: </strong>Study of 70 patients clinically diagnosed of having CSOM (AA) in period between August 2018 to March 2020 was done at Sola civil hospital, Ahmedabad. All patients were advised HRCT temporal bone except those who had contraindications to CT scan, analysed and operated. Pre-operative CT-scan findings and intra-operative findings were compared for statistical analysis.</p><p><strong>Results: </strong>Soft tissue density was found in 100% of cases on HRCT temporal bone. Bony erosion seen in 25% of cases. 90% showed ossicular erosion. Lateral semi-circular canal fistula was observed in 10% of cases with facial canal dehiscence in 10% of cases. Intra-operative findings showed accuracy of HRCT in detecting soft tissue density to be 100%; bony erosion was observed in 25% cases. 10% patients had lateral semi-circular canal fistula. Facial canal dehiscence was seen in 15% cases.</p><strong>Conclusion: </strong>HRCT has proved quite useful and reliable to identify the disease extension before surgery and plan surgery accordingly.<p> </p>

Lower tibial shaft spiral fracture concurrent with distal tibial triplane fracture

2021 ◽  
Vol 17 ◽  
Author(s):  
Lei Cao ◽  
Shu-Man Han ◽  
Hui-Zhao Wu ◽  
Jin-Xu Wen ◽  
Zhe Guo ◽  
...  
Keyword(s):  
Weight Bearing ◽  
Plain Radiograph ◽  
Plain Radiography ◽  
Type I ◽  
Imaging Features ◽  
Type Ii ◽  
Tibial Shaft ◽  
Spiral Fracture ◽  
Tibial Epiphysis ◽  
Triplane Fracture

Background: The clinical and imaging features of lower tibial shaft spiral fracture, concurrent with distal tibial triplane fracture, are not clear. Introduction: Consequently, this study was aimed to investigate these features for correct diagnosis, treatment, and prevention of possible premature physeal arrest or angular deformation. Method: Patients with lower tibial shaft spiral fracture concurrent with distal tibial triplane fracture were enrolled, and the clinical, imaging, treatment, and follow-up data were analyzed. Result: Five patients with lower tibial shaft spiral fracture concurrent with distal tibial triplane fracture were found, including four men and one woman with an age range of 12-15 years (mean 13.6). Injury to the distal tibial epiphysis was missed in the diagnosis in plain radiography reports, but careful reevaluation confirmed distal tibial epiphysis fracture in four cases, including Salter-Harris type II in three cases and type III in one case. The remaining case had no apparent distal tibial epiphysis injury in the plain radiograph. CT scan revealed that all five patients had distal tibial triplane fracture of the lateral type, including two fragments in three cases and three fragments in two cases. The fracture was divided into type I(within the articular weight-bearing line) in three cases, type II (outside the articular weight-bearing line) in two cases that were based on the involvement of the articular surface by the fracture line. For the lower tibial fracture, one patient was treated with closed reduction and fixation with an elastic nail, three patients had internal plate fixation, and the remaining patient had cast immobilization. Having followed up for 3-11 months (mean 7), all the distal tibial fractures and the triplane fractures were healed without varus or valgus deformity in the ankle. Conclusion : Distal tibial triplane fracture can be readily missed in plain radiography and should be suspected in patients with distal tibial spiral fracture, which should be evaluated with a computed tomographic scan.

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