scholarly journals Adult Intramedullary Ewing Sarcoma of the Proximal Hip

2014 ◽  
Vol 2014 ◽  
pp. 1-4
Author(s):  
Preetam Gongidi ◽  
Siva Jasti ◽  
William Rafferty ◽  
Veniamin Barshay ◽  
Richard Lackman
Keyword(s):  
Young Adults ◽  
Soft Tissue ◽  
Ewing Sarcoma ◽  
Soft Tissue Mass ◽  
Periosteal Reaction ◽  
Long Bones ◽  
New Bone Formation ◽  
Tissue Mass ◽  
First Case ◽  
Cortical Erosion

Ewing sarcoma of bone is classically a permeative lesion in the diaphysis of long bones in children. While they occur primarily in children and adolescents, they can be seen in young adults in their 20s, but these are typically seen in flat bones. The permeative nature of the lesion can elicit new bone formation creating a partially sclerotic appearance, cortical expansion presenting as a “Codman triangle,” or have an “onion-skin” type of aggressive periosteal reaction/periostitis. Ewing sarcoma is rarely seen without an associated soft-tissue mass and is even rarer to just have benign-appearing periostitis (e.g., thick, uniform, or wavy cortex). We present such a case of Ewing sarcoma in a young adult confined to just the medullary metadiaphysis without cortical erosion or soft-tissue mass. To the best of our knowledge, this is the first case to be reported in the radiology literature.

Poorly Differentiated Chordomas Showing Loss of INI1/SMARCB1: A Report of 2 Rare Cases With Diagnostic Implications

2018 ◽  
Vol 26 (7) ◽  
pp. 637-643 ◽  
Author(s):  
Bharat Rekhi ◽  
Kemal Kosemehmetoglu ◽  
Swapnil Rane ◽  
Figen Soylemezoglu ◽  
Elif Bulut
Keyword(s):  
Soft Tissue ◽  
Tumor Cells ◽  
Soft Tissue Mass ◽  
Head Movements ◽  
Cervical Region ◽  
Tissue Mass ◽  
First Case ◽  
Radiologic Imaging ◽  
Poorly Differentiated ◽  
Mitotic Figures

Poorly differentiated chordomas are rare musculoskeletal tumors. Case 1. A 42-year-old lady presented with quadriparesis of 2 months’ duration. Radiologic imaging disclosed a soft tissue mass in her left prevertebral- and paravertebral cervical region. Case 2. A 4-year-old male child presented with neck pain and restricted head movements of 1-year duration. Radiologic imaging revealed a contrast enhancing, paraspinal soft tissue mass in his cervical region. Microscopic examination in both the cases revealed a cellular malignant tumor composed of moderate to markedly pleomorphic cells with interspersed mitotic figures, along with focal myxoid change and necrosis. By immunohistochemistry, tumor cells in both cases were diffusely positive for pan cytokeratin (AE1/AE3) and brachyury, whereas these were negative for INI1/SMARCB1. Tumor cells in the second case were also positive for glypican3. The first case developed pulmonary metastasis, while the second case developed recurrence. Poorly differentiated chordomas are uncommon tumors, invariably characterized by loss of INI1. These tumors can be rarely seen in adults and need to be differentiated from their diagnostic mimics, in view of treatment implications and their relatively aggressive clinical outcomes.

Subcutaneous Taenia crassiceps Cysticercosis Mass Excision from an 11-Year-Old Mixed-Breed Dog

2021 ◽  
Vol 57 (5) ◽  
Author(s):  
Christina Murphy ◽  
Logan Kursh ◽  
Thomas Nolan ◽  
James Perry
Keyword(s):  
Soft Tissue ◽  
Soft Tissue Mass ◽  
Ex Vivo ◽  
Tissue Mass ◽  
Cross Sectional ◽  
Taenia Crassiceps ◽  
First Case ◽  
Imaging Characteristics ◽  
Mixed Breed ◽  
Infectious Etiology

ABSTRACT An 11 yr old mixed-breed dog presented with a 2 × 3 cm semimovable subcutaneous soft-tissue mass overlying the right hip region that grew to 8 × 5 cm over a 6 mo period. Two separate fine needle aspiration cytology samples showed marked pyogranulomatous inflammation with no cytologically apparent infectious etiology or neoplasia. Computed tomography imaging revealed a well-marginated, heterogeneous, contrast-enhancing soft-tissue mass extending into the adjacent fat, suggestive of neoplasia. A 14G needle biopsy showed similar chronic inflammatory changes without evidence of neoplasia or infectious etiology. Excisional biopsy of the mass was performed, and ex vivo sectioning revealed Taenia crassiceps cysticerci. Histopathology confirmed severe chronic pyogranulomatous cellulitis and myositis with intralesional cysticerci. Anthelmintic treatment was administered postoperatively, and no evidence of local recurrence has been noted as of 6 mo after the operation. To our knowledge, this is the first case report describing the cytological, histological, cross-sectional imaging characteristics and treatment outcome of T crassiceps cysticercosis in a dog.

Angiosarcoma

1989 ◽  
Vol 30 (6) ◽  
pp. 627-631 ◽  
Author(s):  
D. M. Coldwell ◽  
R. L. Baron ◽  
C. Charnsangavej
Keyword(s):  
Computed Tomography ◽  
Soft Tissue ◽  
Clinical Course ◽  
Malignant Tumors ◽  
Soft Tissue Mass ◽  
Common Finding ◽  
Long Bones ◽  
Tissue Mass ◽  
Clinical Behavior

The findings at radiography, computed tomography and angiography and the clinical course of 30 cases of angiosarcoma were reviewed. The variety of primary sites results in a multitude of findings but the most common finding was that of a hypervascular soft tissue mass seen on CT and angiography. Additional findings of well demarcated cortical defects in long bones were also frequently noted. The general clinical behavior of these aggressive malignant tumors was also reviewed and it was noted that they had a deceptively benign presentation.

Composite Paraganglioma: Pioneering in the Head and Neck

2018 ◽  
Vol 27 (3) ◽  
pp. 282-289
Author(s):  
Santiago Delgado ◽  
Stephen M. Smith ◽  
Saral Mehra ◽  
Manju L. Prasad
Keyword(s):  
Soft Tissue ◽  
Carotid Artery ◽  
Urinary Bladder ◽  
Head And Neck ◽  
Soft Tissue Mass ◽  
Rare Entity ◽  
Tissue Mass ◽  
First Case ◽  
Clinicopathologic Findings

Composite paragangliomas are rare with less than 20 cases documented in the abdomen, retroperitoneum, and urinary bladder. In this article, we report the first case of composite paraganglioma in the head and neck presenting as a soft tissue mass in the neck adjacent to the carotid artery in a 50-year-old woman. We discuss the clinicopathologic findings and genetic implications, and we review the literature of this rare entity.

scholarly journals Diagnostic value of MRI signs in differentiating Ewing sarcoma from osteomyelitis

2018 ◽  
Vol 60 (2) ◽  
pp. 204-212 ◽  
Author(s):  
Ömer Kasalak ◽  
Jelle Overbosch ◽  
Hugo JA Adams ◽  
Amelie Dammann ◽  
Rudi AJO Dierckx ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Transition Zone ◽  
Ewing Sarcoma ◽  
Soft Tissue Mass ◽  
Characteristic Curve ◽  
Bone Lesion ◽  
Diagnostic Value ◽  
Observer Agreement ◽  
Tissue Mass ◽  
Magnetic Resonance Imaging Mri

Background The value of magnetic resonance imaging (MRI) signs in differentiating Ewing sarcoma from osteomyelitis has not be thoroughly investigated. Purpose To investigate the value of various MRI signs in differentiating Ewing sarcoma from osteomyelitis. Material and Methods Forty-one patients who underwent MRI because of a bone lesion of unknown nature with a differential diagnosis that included both Ewing sarcoma and osteomyelitis were included. Two observers assessed several MRI signs, including the transition zone of the bone lesion, the presence of a soft-tissue mass, intramedullary and extramedullary fat globules, and the penumbra sign. Results Diagnostic accuracies for discriminating Ewing sarcoma from osteomyelitis were 82.4% and 79.4% for the presence of a soft-tissue mass, and 64.7% and 58.8% for a sharp transition zone of the bone lesion, for readers 1 and 2 respectively. Inter-observer agreement with regard to the presence of a soft-tissue mass and the transition zone of the bone lesion were moderate (κ = 0.470) and fair (κ = 0.307), respectively. Areas under the receiver operating characteristic curve of the diameter of the soft-tissue mass (if present) were 0.829 and 0.833, for readers 1 and 2 respectively. Mean inter-observer difference in soft-tissue mass diameter measurement ± limits of agreement was 35.0 ± 75.0 mm. Diagnostic accuracies of all other MRI signs were all < 50%. Conclusion Presence and size of a soft-tissue mass, and sharpness of the transition zone, are useful MRI signs to differentiate Ewing sarcoma from osteomyelitis, but inter-observer agreement is relatively low. Other MRI signs are of no value in this setting.

Soft tissue mass of the thigh: presentation

2007 ◽  
Vol 36 (12) ◽  
pp. 1177-1177 ◽  
Author(s):  
Tomoya Sakabe ◽  
Hiroaki Murata ◽  
Yukiko Tokumoto ◽  
Kazutaka Koto ◽  
Takaaki Matsui ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Soft Tissue Mass ◽  
Tissue Mass

DIAGNOSIS OF IMPAIRED FETAL GROWTH IN NEWBORN INFANTS

PEDIATRICS ◽  
1971 ◽  
Vol 48 (4) ◽  
pp. 511-522 ◽  
Author(s):  
Herbert C. Miller ◽  
Khatab Hassanein
Keyword(s):  
Birth Weight ◽  
Soft Tissue ◽  
Body Length ◽  
Fetal Growth ◽  
Head Circumference ◽  
Soft Tissue Mass ◽  
Newborn Infants ◽  
Tissue Mass ◽  
Growth Impairment ◽  
Short Body

Measurements of crown-heel length, head circumference, and birth weight were made on a large number of newborn infants. Birth weight by itself was frequently not a valid measure of fetal growth impairment. By including measurements of body length and head size along with birth weight, four distinct patterns of fetal growth impairment were identified. The four patterns included infants who had abnormally short body lengths for dates, infants who had evidence of disproportionate growth between body length and head circumference, infants who accumulated excessive amounts of soft-tissue mass, and infants who accumulated too little soft-tissue mass. Criteria for diagnosing each pattern were obtained prospectively and have been presented with allowances made for the effects of race, sex, fetal age, and parity on each pattern. The separate identification of the four patterns provided a more precise description of fetal growth impairment than could be obtained from birth weight and calculated gestational age.

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