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The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the...
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Related Experiment Video

Updated: Apr 1, 2026

The In ovo CAM-assay as a Xenograft Model for Sarcoma
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Chondrosarcoma of the Hip.

Aubrey D Sperier1, Nathan C Hammel, Michael D Rosenthal

  • 1Department of Physical and Occupational Therapy, Naval Medical Center San Diego, San Diego, CA.

The Journal of Orthopaedic and Sports Physical Therapy
|October 2, 2015
PubMed
Summary

A young woman discovered a painful hip mass, later diagnosed as an osteochondroma. This benign bone tumor required further imaging for accurate characterization.

Area of Science:

  • Orthopedics
  • Radiology
  • Oncology

Background:

  • A 27-year-old female patient presented with a painful hip mass.
  • The mass was initially noticed 6 months prior to evaluation.

Observation:

  • Physical therapy evaluation revealed a firm mass in the left hip.
  • Radiographs demonstrated a mass on the left lateral iliac bone.

Findings:

  • Contrast-enhanced magnetic resonance imaging (MRI) was recommended for detailed assessment.
  • MRI revealed a large, lobulated mass consistent with an osteochondroma.

Implications:

  • Osteochondromas are common benign bone tumors, typically presenting in adolescents and young adults.
  • Accurate diagnosis through advanced imaging like MRI is crucial for characterizing bone lesions.
Keywords:
cancermagnetic resonance imagingmassradiography

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  • While generally benign, monitoring may be necessary depending on size, location, and symptoms.