Comparative Clinical Pathology

, Volume 27, Issue 2, pp 529–533 | Cite as

Prodorsal liposarcoma in a gyr-saker hybrid falcon (Falco rusticolus x Falco cherrug)

  • Mohammed A. Rahim
  • Amel O. Bakheit
  • Mansour F. Hussein
Brief Communication


An adult female gyr-saker hybrid falcon (Falco rusticolus x Falco cherrug) was brought to our falcon medical and research hospital for evaluation of a rapidly growing mass. Physical and radiographic examination revealed a large, oval-shaped, soft tissue mass on the left prodorsal region. Hematological findings showed moderate leukocytosis and heterophilia while the results of blood biochemical analyses were within normal ranges apart from a moderate elevation of creatine phosphokinase (CPK) activity. A cursory cytological evaluation of fine-needle aspirate of the mass revealed numerous RBCs while neither inflammatory nor neoplastic cells were discernible. Test for acid-fast bacilli in the aspirate was negative. Surgical excision of the mass was performed while the bird was under isoflurane anesthesia. Histopathological examination of biopsy samples of the mass obtained during surgical procedure was consistent with a moderately undifferentiated liposarcoma.


Gyr-saker hybrid Falconiformes Prodorsal mass Neoplastic diseases Differential diagnosis Biopsy Undifferentiated liposarcoma 



Thanks to the Director General and staff of Fahad bin Sultan Falcon Center for support and assistance and Mr. Khalid El Fakih for preparing histopathological sections.


Fund for this study was provided by Prince Fahad bin Sultan Falcon Center. Recipient: Mohammed A. Rahim.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All international, national, and institutional ethical guidelines for the care and use of animals were followed.


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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2017

Authors and Affiliations

  • Mohammed A. Rahim
    • 1
  • Amel O. Bakheit
    • 2
  • Mansour F. Hussein
    • 3
  1. 1.Falcon Medical and Research Hospital, Fahad bin Sultan Falcon CenterRiyadhSaudi Arabia
  2. 2.College of Veterinary MedicineSudan University of Science and TechnologyKhartoum NorthSudan
  3. 3.WoodbridgeUSA

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