Radiology Key

Location: Among the most frequent sarcomas occurring in the hand and forearm. Palmar region of the hand, dorsal region of the forearm, plantar aspect of the foot, anterior region of…

Location: The most frequent sites are the lower limbs, followed by upper limbs and limb girdles. Rare in trunk, head and neck, and hands and feet. Most cases described in…

Localization: Skeletal muscles of extremities and retroperitoneum. Tumor is deep in 90 % of cases. Clinical: Globose and painless swelling with no characteristic clinical features other than a frequently rapid…

Location: Spinal roots, nerves of the mediastinum or of the retroperitoneum, peroneal, and ulnar nerve. Single nodule. Clinical: Slow and progressive pain and neurological symptoms. Liquoral block, compression of the…

Location: Lower limb (thigh), retroperitoneum, pelvic region, upper limb, trunk, head, and neck. Deeply located. Clinical: Slow enlarging painless mass, increased skin temperature, telangiectasia, unilateral varicose veins, pulsation, audible bruit,…

Location: Most are deep tumors. Anywhere where fibrous tissue is found. Thigh, knee, trunk, arm, forearm. Rare in the head and neck. Hand and foot are most frequent sites of…

Location: (a): Superficial lesion in subcutis or dermis. (b): All sites and all organs. Clinical: (a) Painless nodule, few symptoms. (b) Café au lait spots, typically in the axilla. More…

Location: Proximal femur, pelvis, and proximal humerus. Clinical: On a history of long duration with moderate symptoms, a rapid progression of pain and swelling occurs. Pathologic fractures frequent. Imaging: On…

Localization: Preferred sites are long bones, particularly the distal femur and proximal tibia. Rare in flat bones, exceptional in the hands and feet. It is usually centered in the metaphysis…

Localization: Tibia and femur. Less frequent in the humerus, rare in the fibula and other long bones. Usually located in the diaphysis, occasionally in the metaphysis. Clinical: Palpable mass and…