Fibroma (Subscribe)  

# small, intramedullary island of compact bone
# usually (-) on bone scan
# shaggy, slightly stellate border

Clinical presentation: No detail, presumably pain in right shoulder.
There is a well defined lytic eccentric lesion in the metaphysis and proximal portion of the diaphysis of the right humerus. This has a well-defined zone of transition with normal bone and has the appearance of a line of demarcating sclerosis. The cortex...

* benign metaphyseal lesion
* young adults (60% <30 y/o)
* lytic lesion with well-defined margin
o diaphysis of long bone
...

Chondromyxoid fibroma (CMF) is a rare, slow-growing bone tumor of chondroblastic derivation.1, 2, 3, 4 Jaffe and Lichtenstein first described the condition in 1943.5 They differentiated this benign lesion from chondrosarcoma, a much more common, but malignant, tumor.
Synonyms and related keywords: CMF, bone tumor, chondroblast, chondrosarcoma, benign tumor, aneurysmal...

Chondromyxoid fibroma is a rare benign tumor characterized by lobulated areas of spindle shaped and myxoid (stellate) cells with abundant chondroid or myxoid matrix and interspersed giant cells. It represents less than 5% of all benign cartilage tumors and <1% of all bone tumors.

Section of Orthopedics Hyperguide

Discussion: - locally painfull benign cartilaginous lesion of bone; - it occurrs in adolescents; - located in metaphyses of major long bones; - this lesion most often presents as an active stage 2 lesion which is locally destructive...

Discussion: - solitary, beinign fibrous tumor of sof tissue; - it may occur at any age; - lesions arise as a slowly enlarging soft tissue mass; - palmer and planter aspects of the hands and feet are common...

Fibromas are well-circumscribed, slow-growing, benign fibrous lesions. Although they can occur de novo in the soft tissues, fibromas most commonly present approximating a tendon sheath. For the purpose of this discussion, fibroma of tendon sheath (FTS) will represent all solitary fibromas of soft tissue as the pathology and behavior are...

Fibrous Cortical Defect/Non-Ossifying Fibroma Pre-test and tutorial Frank J. Frassica, MD Professor of Orthopaedics & Oncology Johns Hopkins University Department of Orthopaedic Surgery Baltimore, Maryland Franklin H. Sim, MD Chief, Section of Orthopedic Oncology Mayo Clinic Rochester, Minnesota Section of Orthopedics Hyperguide

Radiology Case 461-3131 Young adolescent male with pain in heel.
The skeleton is maturing; note the fusing epiphyses. There is a thick dense margin around an eccentric lesion in the tibial diaphysis. It is not projected in-profile in either view, but seems well-defined with an intact sclerotic margin. There is no...

Phemister provided the first description of fibrous cortical defect (FCD) in 1929. Sontag and Pyle reported a radiologic description in 1941,1 and in 1942, Jaffe and Lichtenstein described clinical and anatomic aspects and the natural history.2 Also called nonossifying or nonosteogenic fibroma, this benign tumor probably is the most frequent bony...

Radiology case 451-3131 Clinical presentation: Incidental finding in a 15 year old girl. There is a lobulated peripheral zone of increased density in the diaphysis of the femur. It has a sclerotic well-defined endosteal margin. The long axis is parallel to the bone and there is no cortical reaction. There is no...

Radiology case 454-3131 Incidental finding in a 15 year old boy, trauma case.
The skeleton is immature. There is a peripheral metaphyseal 'lucency' with a well defined endosteal margin. The long axis is parallel to the bone implying a longevity without significant damage. The lesion has a superficial location, but the...

Objectives
1. List 3 synonyms for fibrous cortical defect
2. Describe the pathology of fibrous cortical defect
3. Describe the radiographic features of fibrous cortical defect
4. Describe the natural history of fibrous cortical defect
5. Discuss surgical indications and...