BENIGN AND LOW-GRADE SPINDLE CELL TUMORS 6.1 Fibromas 6.2 Elastofibroma 6.3 Fibromatosis 6.4 Neurofibroma 6.5 Schwannoma 6.6 Perineurioma 6.7 Nodular Fasciitis 6.8 Additional Variants of Fasciitis 6.9 Angiomyofibroblastoma 6.10 Cellular Angiofibroma 6.11 Myofibroblastoma 6.12 Gastrointestinal Stromal Tumor 6.13 Leiomyoma 6.14 Myofibroma and Myofibromatosis 6.15 Solitary…
EPITHELIOID SOFT TISSUE TUMORS 8.1 Rhabdomyoma 8.2 Granular Cell Tumor 8.3 Glomus Tumor 8.4 Neoplasms With Perivascular Epithelioid Cell Differentiation (PEComa) 8.5 Myoepithelial Tumors of Soft Tissue 8.6 Clear Cell Sarcoma 8.7 Epithelioid Sarcoma 8.8 Alveolar Soft Part…
CARTILAGINOUS LESIONS 16.1 Enchondroma 16.2 Osteochondroma and Bizarre Parosteal Osteochondromatous Proliferation (Nora’s Lesion) 16.3 Chondroblastoma 16.4 Chondromyxoid Fibroma 16.5 Chordoma 16.6 Chondrosarcoma 16.7 Clear Cell Chondrosarcoma 16.1 Enchondroma Enchondroma is a benign tumor of cartilage, sometimes…
OSSEOUS LESIONS 15.1 Osteoma 15.2 Osteoid Osteoma 15.3 Osteoblastoma 15.4 Osteosarcoma 15.5 Major Histologic Variants of Osteosarcoma 15.6 Parosteal Osteosarcoma 15.7 Periosteal Osteosarcoma 15.1 Osteoma Osteomas are benign proliferations of mature bone. They tend to grow…
TUMORS WITH ADIPOSE DIFFERENTIATION 4.1 Lipoma With Variants 4.2 Spindle Cell/Pleomorphic Lipoma 4.3 Hibernoma 4.4 Lipoblastoma 4.5 Atypical Lipomatous Tumor/Well-Differentiated Liposarcoma 4.6 Dedifferentiated Liposarcoma 4.1 Lipoma With Variants Lipoma represents the single most common soft…
SOFT TISSUE TUMORS WITH OSSEOUS OR CARTILAGINOUS MATRIX 14.1 Myositis Ossificans 14.2 Phosphaturic Mesenchymal Tumor 14.3 Tumoral Calcinosis 14.4 Synovial Chondromatosis 14.5 Ossifying Fibromyxoid Tumor of Soft Parts 14.6 Extraskeletal Osteosarcoma and Chondrosarcoma 14.1 Myositis…
INTERMEDIATE- TO HIGH-GRADE SPINDLE CELL TUMORS 7.1 Leiomyosarcoma 7.2 Dermatofibrosarcoma Protuberans 7.3 Infantile Fibrosarcoma 7.4 Adult Fibrosarcoma 7.5 Malignant Peripheral Nerve Sheath Tumor 7.6 Spindle Cell/Sclerosing Rhabdomyosarcoma 7.7 Synovial Sarcoma 7.1 Leiomyosarcoma Leiomyosarcomas represent one of…
SPINDLE CELL TUMORS 18.1 Fibrous Dysplasia 18.2 Nonossifying Fibroma 18.3 Osteofibrous Dysplasia 18.4 Adamantinoma 18.5 Desmoplastic Fibroma of Bone 18.6 Undifferentiated High-Grade Sarcoma of Bone 18.1 Fibrous Dysplasia Fibrous dysplasia (FD) is a benign dysplastic…
TUMORS WITH MYXOID STROMA 5.1 Ganglion Cyst 5.2 Myxoma 5.3 Aggressive Angiomyxoma 5.4 Myxoid Liposarcoma 5.5 Extraskeletal Myxoid Chondrosarcoma 5.6 Myxofibrosarcoma (High Grade) 5.1 Ganglion Cyst Ganglion cysts are relatively common lesions, thought to be…
VASCULAR TUMORS 12.1 Hemangiomas 12.2 Hemangioendothelioma 12.3 Kaposi Sarcoma 12.4 Angiosarcoma 12.1 Hemangiomas Hemangiomas represent benign proliferations of blood vessels. They occur in both the superficial and deep soft tissues, as well as…
