Fibroblastic/Myofibroblastic Tumors
Fig. 13.1 (a–f) Two cases of nodular fasciitis, fascial type: a first case (a–c) at the fascia of the gracilis muscle and a second case (d–f) at the fascia of…
Tumors of Uncertain Differentiation
Fig. 18.1 Intramuscular myxoma at the right scapular region in a 68-year-old man. (a) Axial spin-echo T1-weighted MR image. (b) Axial spin-echo T2-weighted MR image. (c) Axial spin-echo T1-weighted MR…
Pseudotumoral Lesions
Fig. 21.1 Accessory palmaris longus muscle in a 15-year-old boy. Axial T1-weighted MR image after gadolinium contrast injection. The MR image reveals an additional mass, located superficially of the flexor…
Ultrasound and Color Doppler Ultrasound of Soft Tissue Tumors and Tumorlike Lesions
Fig. 1.1 Myxofibrosarcoma in a 65-year-old female patient with painless firm mass at the right thigh. Demonstration of tumoral mass with nonspecific US characteristics for which further MRI examination and…
Adipocytic Tumors
Fig. 12.1 (a–d) Subcutaneous lipoma in the left thigh overlying gracilis (*). (a) Ultrasound. (b) Axial SE T1-weighted MR image. (c) Axial fat-suppressed T2-weighted MR image. (d) Coronal SE T1-weighted…
Radiography and Computed Tomography
Fig. 2.1 Myxofibrosarcoma arising in the adductors of the upper thigh in a 75-year-old man. Plain radiograph. The tumor is only visible by virtue of its mass effect on tissue…
Synovial Lesions
Communication with joint Wall composition Cell lining Contents (Arthro)synovial cyst Present Continuous mesothelial lining “True” synovial cells Mucinous fluid Ganglion (cyst) May be present Discontinuous mesothelial lining Flattened pseudosynovial…
Vascular Tumors
Benign vascular tumors Hemangiomas of subcutaneous/deep soft tissue Capillary Cavernous Arteriovenous Venous Intramuscular Synovial Epithelioid hemangioma Angiomatosis Lymphangioma Vascular tumors of intermediate malignancy (locally aggressive) Kaposiform hemangioendothelioma Vascular tumors of…
Nerve Sheath Tumors
Fig. 17.1 (a, b) Nerve sheath architecture: (a) components of a nerve fiber surrounded by endoneurium. (b) Nerve trunk with five fascicles in group arrangement (Source: Penkert et al. [104])…
Tumors of Smooth and Skeletal Muscle and Pericytic Tumors
Fig. 15.1 Leiomyoma of the flexor compartment of the right arm in a 56-year-old woman. (a) Ultrasound, axial plane. Ultrasound shows a well-circumscribed, oval, and slightly hypoechoic mass within the…
