The chordoma arised from ilium: A rare case report.

Area of Science:

• Oncology
• Orthopedic Oncology
• Pathology

Background:

• Chordomas are rare malignant tumors arising from notochordal remnants.
• Typically, chordomas occur in the sacrum and skull, with rare occurrences in the mobile spine and other bones.
• Ilium involvement by chordoma has not been previously documented.

Purpose of the Study:

• To report the first case of a chordoma originating in the ilium.
• To highlight the importance of considering chordoma in the differential diagnosis of iliac bone lesions.

Main Methods:

• Case presentation of a 45-year-old male with an iliac bone lesion.
• Diagnostic workup including imaging (radiography, CT, MRI) and biopsy.
• Surgical wide resection and histopathological examination with immunohistochemistry.

Main Results:

• Imaging revealed a lytic lesion in the left ilium.
• Histopathology and immunohistochemistry confirmed the diagnosis of classic chordoma.
• This represents the first documented instance of an iliac chordoma.

Conclusions:

• Chordoma should be included in the differential diagnosis for lytic lesions of the ilium.
• This case expands the known anatomical distribution of chordomas.
• Awareness of this rare presentation is crucial for accurate diagnosis and management.