Pathology Resident Wiki
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Synonyms[]

Antibodies[]

Technical Info[]

Staining Pattern[]

  • Nuclear

Expression in Normal Tissues[]

Expression in Neoplastic Entities[]

Benign[]


Intermediate/Uncertain Malignant Potential[]


Malignant[]
  • Atypical lipomatous neoplasm (tumor) / Well differentiated liposarcoma
  • Dedifferentiated Liposarcoma
  • Parosteal osteosarcoma[1]

Expression in Non-Neoplastic Entities[]

Pertinent Negatives[]

This antigen is typically NOT expressed by the following entities:

  • Benign lipomatous tumors[2]

Practical Uses / Panels[]

  • Can be used with MDM2 to differentiate well differentiated liposarcoma (CDK4+, MDM2+) from benign adipose tumors (CDK4-, MDM2-)[3][2]
  • Can be used to distinguish dedifferentiated liposarcoma (CDK4+) from poorly differentiated sarcomas (CDK4-)[3]

Common Pitfalls[]

Related Links/Other Resources[]

References[]

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