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Department of Radiology
Tulane University Medical Center
Toshikazu Nambu MD.
Christopher M. Arcement M.D.
Clinical History:
- An incidental finding from an abdominal ultrasound on a 48 year old male revealed an abdominal mass. There were no symptoms or significant medical history that would indicate the presence of this mass.
Radiologic Findings:
- Ultrasonography shows a hypoechogenic, well demarcated mass lesion between IVC and superior mesenteric vein. The mass is mostly homogeneous and there is no sign of calcification. CT; Plain CT demonstrates a homogeneous soft tissue density mass posterior to the liver. Contrast enhanced CT showed enhancement only at the rim of the mass lesion, however dynamic CT demonstrated an acute enhancement of the entire lesion in the arterial phase. Angiography: The mass was hypervascular mass feeded by dorsal pancreatic artery. There was no sign of vascular encasement.
Differential and Final Diagnosis
- Differential Diagnosis:
Images of this lesion reveal it to be a hypervascular retroperitoneal solid mass without evidence of invasion to adjacent organs. Differential diagnosis includes neurogenic tumor (schwannoma etc.), hemangioma, leiomyoma, plasmacytoma, malignant lymphoma, Castlemans tumor, pheochromocytoma, etc.
- Final Diagnosis:
Castlemans tumor (hyaline vascular type).
Microscopic section of tumor
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DISCLAIMER:
CASTLEMAN's DISEASE HOMEPAGE is provided for educational purposes only. Consult your own physician regarding the applicability of any opinions or recommendations with respect to your symptoms or medical condition.
* CASTLEMAN's DISEASE HOMEPAGE is intended as a reference for health care professionals. The authors and editors have used sources believed to be reliable in their efforts to provide information that is complete and generally in accord with the standards accepted at the time of publication.
Medical knowledge changes rapidly. In view of the possibility of human error or changes in medical science, neither the authors, the editors, St. Vincent Hospital, nor any other party who has been involved in the preparation or publication of this work warrants that the information contained herein is in every respect accurate or complete, and they are not responsible for any errors or omissions or for the results obtained from the use of such information. Readers are encouraged to confirm the information contained herein with other sources.
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