So-Called Fibrohistiocytic Tumours
Fig. 14.1 (a–c) Pigmented villonodular bursitis within the pes anserine bursa. (a) Coronal T1-weighted MR image. (b) Coronal T2-weighted MR image. (c) Coronal gradient echo MR image of the left…
Magnetic Resonance Imaging: Advanced Imaging Techniques
Fig. 5.1 (a–d) Factors determining early tissue enhancement. The lower parts of a–d show what occurs at the level of the capillary and the interstitial space after intravenous bolus injection;…
Miscellaneous
Fig. 24.1 (a, b) Extraskeletal chondroma of the foot in a 37-year-old man: (a) plain radiograph; (b) CT. Soft tissue mass with multiple punctate and ringlike calcifications between the second…
Follow-Up Imaging of Soft Tissue Tumors
Fig. 26.1 Adult patient with synovial sarcoma medial to the femur with central necrosis diagnosed on the resected specimen. T1- (a) and T2-weighted frequency-selected fat-suppressed (b) and T1 fat-suppressed Gd-enhanced…
Pathology, Genetics, and Molecular Biology of Soft Tissue Tumors
Fig. 6.1 HE, 100×. Schwannomas are well-demarcated lesions surrounded by a fine fibrous capsule (arrow) Fig. 6.2 Macroscopic image of desmoid tumor (black arrow) infiltrating the surrounding adipose tissue (red…
WHO Classification of Soft Tissue Tumors
Tumor category Major changes Adipocytic Mixed-type liposarcoma removed Fibroblastic DFSP and giant cell fibroblastoma included for the first time Myofibroblastic “Hemangiopericytoma” removed as a synonym for SFT Recognition of nodular…
Imaging of Soft Tissue Tumors in the Pediatric Patient
Location Tumor Neck Cystic hygroma – lymphangioma Sternocleidomastoid muscle Capillary hemangioma Fibromatosis colli Trunk Askin (PNET) tumor Axilla Cystic hygroma-lymphangioma Upper limb Wrist Ganglion cyst Wrist, volar aspect Fibrolipohamartoma…
Undifferentiated/Unclassified Sarcoma
Fig. 19.1 (a, b) Round cell sarcoma (Ewing sarcoma). (a) Pre-chemotherapy axial T2FS MR image. (b) Post-chemotherapy axial T2FS MRI image. These pre- and post-chemotherapy images demonstrate that round cell…
Grading and Tissue-Specific Diagnosis
Origin (subcutaneous, fascial, intramuscular, mixed) Location Distribution Intracompartmental Extracompartmental Size Shape Margins Relationship with superficial fasciae Neurovascular bundle displacement/encasement Bone involvement Signal intensity on different pulse sequences Signal homogeneity Changing…
