scholarly journals Readout-segmented diffusion tensor imaging for assessing sciatic nerve invasion by soft tissue tumor

2020 ◽  
Author(s):  
Gang Wu ◽  
Shili Wang ◽  
Chu Pan ◽  
Ting Wang
Keyword(s):  
Diffusion Tensor Imaging ◽  
Soft Tissue ◽  
Sciatic Nerve ◽  
Soft Tissue Tumor ◽  
Diffusion Tensor ◽  
Soft Tissue Mass ◽  
Tissue Mass ◽  
Tissue Tumor ◽  
Nerve Invasion ◽  
Apparent Diffusion

Abstract There are few publications regarding feasibility of readout-segmented diffusion tensor imaging (rsDTI) in assessing nerve invasion by soft tissue tumor. 64 patients with soft tissue mass in upper leg suspected of sciatic nerve invasion underwent rsDTI. Nerve invasion was confirmed in 28 cases by operation or electromyogram. The sciatic nerve was better depicted with diffusion weighted map versus b = 0 map of rsDTI. Inter-reader agreement in using rsDTI to rate nerve invasion was excellent. Sensitivity and specificity of rsDTI in identifying nerve invasion were 93% (26/28) and 92% (33/36) respectively. Apparent diffusion coefficient (ADC) was significantly higher in invaded nerves versus normal nerves (1.45 ± 0.67 × 10− 3mm2/s vs. 1.39 ± 0.46 × 10− 3mm2/s, P༜0.05). DTI derived FA was significantly lower in invaded nerves versus normal nerves (0.22 ± 0.11 vs. 0.37 ± 0.13, P༜0.05). Readout-segmented DTI was feasible in assessing sciatic nerve invasion by soft tissue tumor in selected patients.

scholarly journals Soft Tissue Tumor Leg - A Rare Presentation of Cutaneous Rhinosporidiosis

2020 ◽  
pp. 1-2
Author(s):  
R. Chithra ◽  
B Sai Dhandapani ◽  
R King Gandhi ◽  
R. Chithra
Keyword(s):  
Soft Tissue ◽  
Soft Tissue Tumor ◽  
Soft Tissue Mass ◽  
Radiological Findings ◽  
Rare Presentation ◽  
Diagnostic Dilemma ◽  
Tissue Mass ◽  
Tissue Tumor ◽  
Typical History ◽  
Polypoidal Growth

Rhinosporidiosis presents commonly as polypoidal growth in nose, but presentation in other sites including skin, genitourinary tract is documented. Cutaneous presentation is rare, which may present as pedunculated swelling or cutaneous ulceration, but presenting as soft tissue tumor is extremely rare. The multifaceted presentation of the disease causes diagnostic dilemma to an unsuspecting physician. Clinical and radiological findings may mislead, but usually typical history helps, and typical histology clinches the diagnosis. We are presenting a case of disseminated cutaneous rhinosporidiosis presented as soft tissue mass lesion in the leg causing diagnostic difficulty due to the rare presentation.

The Cartilage Analogue of Fibromatosis (Juvenile Aponeurotic Fibroma) in Dogs

1974 ◽  
Vol 11 (1) ◽  
pp. 60-67 ◽  
Author(s):  
S.-K. Liu ◽  
H. D. Dorfman
Keyword(s):  
Soft Tissue ◽  
Soft Tissue Tumor ◽  
Soft Tissue Mass ◽  
Ground Substance ◽  
Tissue Mass ◽  
Tissue Tumor ◽  
Calcifying Aponeurotic Fibroma

A firm, poorly circumscribed soft tissue tumor occurred in the frontal and occipital or temporal musculature of four mature dogs aged 7-12 years. Radiographically, many nodular or stippled densities were scattered throughout the soft tissue mass, and the cranial bones were eroded. The tumor was characterized by nodular aggregations of proliferating chondrocytes surrounded by calcified matrix or chondroid ground substance. The intervening stroma was fibrous. These infiltrating fibrous lesions with calcified metaplastic cartilage have not been reported previously in the dog and are similar to calcifying aponeurotic fibroma in man.

scholarly journals Bursitis of the coccyx in an adult with rheumatoid arthritis mimicking a sacrococcygeal meningocele

2021 ◽  
Vol 12 ◽  
pp. 220
Author(s):  
Christos Tzerefos ◽  
George K. Koukoulis ◽  
Marianna Vlychou ◽  
Alexandros G. Brotis ◽  
Kostas N. Fountas ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Soft Tissue ◽  
Soft Tissue Tumor ◽  
Soft Tissue Mass ◽  
Surgical Excision ◽  
Total Resection ◽  
Tissue Mass ◽  
Chronic Inflammatory Condition ◽  
Sacrococcygeal Region ◽  
Wall Calcification

Background: Bursitis is a chronic inflammatory condition characterized by the deposition of cholesterol, macrophage infiltration, and bursal wall calcification. Bursitis is, however, rarely found in the sacrococcygeal region where it may present as a space-occupying mass. Case Description: A 64-year-old male with rheumatoid arthritis presented with 3 years’ duration of difficulty sitting and walking due to a soft-tissue mass involving the coccyx region. Once the patient’s MR demonstrated a cystic lesion with erosion of the coccyx, the patient underwent gross total resection of the lesion that proved to be pathologically consistent with bursitis. Postoperatively, the patient’s complaints fully resolved. Conclusion: Bursitis may present as a soft-tissue tumor-like lesion in the coccyx that favorably responds to gross total surgical excision.

scholarly journals Primary sternal osteomyelitis mimicking a neoplastic growth

2017 ◽  
Vol 5 (8) ◽  
pp. 3726
Author(s):  
Nagadarshini Ramagiri Vinod ◽  
Hassan Tahir ◽  
Arslan Ahmed
Keyword(s):  
Case Report ◽  
Soft Tissue ◽  
Ct Scan ◽  
Soft Tissue Tumor ◽  
Chronic Osteomyelitis ◽  
Soft Tissue Mass ◽  
Tissue Growth ◽  
Tissue Mass ◽  
Neoplastic Growth ◽  
Sternal Osteomyelitis

Chronic osteomyelitis usually present as bony growth but it can rarely present as a soft tissue growth mimicking neoplasm and is usually diagnosed by the combination of radiology and microbiology. This is a case report of an adult male who had chronic osteomyelitis mimicking a neoplastic growth of soft tissue. CT scan showed soft tissue mass mimicking a soft tissue tumor but microbiology test and MRI confirmed the diagnosis of chronic osteomyelitis.

Use of Vascularized Sural Nerve Grafts for Sciatic Nerve Reconstruction After Malignant Bone and Soft Tissue Tumor Resection in the Lower Legs

2018 ◽  
Vol 80 (4) ◽  
pp. 379-383 ◽  
Author(s):  
Hideki Tokumoto ◽  
Shinsuke Akita ◽  
Yoshitaka Kubota ◽  
Motone Kuriyama ◽  
Nobuyuki Mitsukawa
Keyword(s):  
Soft Tissue ◽  
Sciatic Nerve ◽  
Sural Nerve ◽  
Soft Tissue Tumor ◽  
Tumor Resection ◽  
Nerve Reconstruction ◽  
Nerve Grafts ◽  
Tissue Tumor

Leiomyoma of the Foot and Ankle: A Case Series

2016 ◽  
Vol 10 (3) ◽  
pp. 270-273 ◽  
Author(s):  
Lauren K. Szolomayer ◽  
Paul G. Talusan ◽  
Wayne F. Chan ◽  
Dieter M. Lindskog
Keyword(s):  
Soft Tissue ◽  
Soft Tissue Tumor ◽  
Soft Tissue Mass ◽  
Case Series ◽  
The Body ◽  
Foot And Ankle ◽  
Tissue Mass ◽  
Benign Soft Tissue Tumor ◽  
Subcutaneous Mass ◽  
Patient Presentation

Leiomyoma is a benign soft-tissue tumor that can arise in any soft tissue; however, in the extremities, it is usually a subcutaneous mass. Masses in the foot and ankle in general are rare, and few reports in the literature describe leiomyoma in this region of the body. We present a series of 8 cases of leiomyoma of the foot and ankle, 4 of which are subclassified as angioleiomyomas. The characteristic patient presentation, imaging, and histological findings are presented here to increase awareness of this soft-tissue mass in the foot and ankle. Levels of Evidence: Level V

scholarly journals Intra-articular Lipoma of the Knee Joint Located in the Lateral Recess: A Case Report

2021 ◽  
Vol 11 (8) ◽  
Author(s):  
Naoki Ishida
Keyword(s):  
Case Report ◽  
Soft Tissue ◽  
Knee Joint ◽  
Soft Tissue Tumor ◽  
Soft Tissue Mass ◽  
Common Type ◽  
Chief Complaint ◽  
Tissue Mass ◽  
Lateral Recess ◽  
Operative Outcome

Introduction: Lipomas are the most common type of soft-tissue tumor, but intra-articular lipomas are very rare. Most cases occur in the knee joint. This is a report of intra-articular lipoma in the knee joint, 8 months after removal with good post-operative outcome. Case Report: A 56-year-old female who presented soft-tissue mass on her right knee. She felt uncomfortable but not in pain. The mass grew gradually and she wanted to be surgically removed. The mass was too large (5 cm × 4 cm × 2 cm) to be removed endoscopically, so arthrotomy was made. The mass was true lipoma histologically. She is living happily without recurrence after surgery. Conclusion: We have described an intra-articular synovial lipoma in the knee of a middle-aged female. Intra-articular lipomas are very rare. The tumor in this case was relatively large but painless, and the chief complaint was discomfort. It grew gradually, so the removal was performed. At present, the patient is living happy without recurrence after surgery. Keywords: Intra-articular lipoma, knee, removal, arthroscopy.

Intermuscular lipoma of the gluteus muscles compressing the sciatic nerve: an inverted sciatic hernia

2012 ◽  
Vol 117 (4) ◽  
pp. 795-799 ◽  
Author(s):  
Eudaldo M. López-Tomassetti Fernández ◽  
Juan Ramón Hernández Hernández ◽  
Jose Ceballos Esparragon ◽  
Angel Turegano García ◽  
Valentin Nuñez Jorge
Keyword(s):  
Soft Tissue ◽  
Sciatic Nerve ◽  
Tumor Growth ◽  
Soft Tissue Tumor ◽  
Piriformis Muscle ◽  
Irreversible Damage ◽  
Transgluteal Approach ◽  
Tissue Tumor ◽  
Sciatic Hernia ◽  
Benign Soft Tissue Tumor

The authors report the case of a 50-year-old woman with a benign intermuscular lipoma of the gluteus compressing the sciatic nerve in its course through the sciatic notch. This benign soft-tissue tumor extended into the pelvis, displacing the rectum laterally. Resection was necessary to alleviate symptoms and prevent irreversible damage of the nerve. Wide exposure of the piriformis muscle and sciatic nerve via a transgluteal approach allowed safe lesion removal, and thus avoiding a laparotomy to resect the intrapelvic extension of the tumor. This report features a curious case of soft-tissue tumor growth across the sciatic foramen forming an inverted sciatic hernia. The authors' proposed approach was simple and safe and avoided a laparotomy.

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