| Composite Pheochromocytoma or Paraganglioma of Adrenal Gland: A Case Report with Immunohistochemical Studies and Electron Microscopic Examination. |
| Hyeyoon Chang, Hoiseon Jeong, Younghye Kim, Sung Hye Park, Aeree Kim |
1Department of Pathology, Korea University Guro Hospital, Korea University School of Medicine, Seoul, Korea. ark@korea.ac.kr
2Department of Pathology, Seoul National University College of Medicine, Seoul, Korea. |
|
|
|
|
| ABSTRACT |
|
Composite pheochromocytoma or paraganglioma of the adrenal gland is a well-recognized, yet extremely rare tumor with only one case reported in Korea. We report a case of incidentally found composite pheochromocytoma and ganglioneuroma of the adrenal gland in a 44-year-old female composed of intermingled components of pheochromocytom, ganglioneuroma, and cells with intermediate features. On immunohistochemical staining, the pheochromocytoma component was positive for synaptophysin and chromogranin, but negative for S-100 protein. Staining for the S-100 protein revealed sustentacular cells which formed a peripheral coat around the "Zellballen" and Schwann cells. The Fontana-Masson stain defined neuromelanin granules of ganglion cells and the ganglion cells expressed neural markers such as neurofilament proteins. Ultrastructural findings revealed pheochromocytes with a round or ovoid nucleus and occasionally prominent nucleolus containing numerous adrenaline and noradrenaline granules. |
| Key Words:
Composite pheochromocytoma and ganglioneuroma, Pheochromocytoma; Paraganglioma; Adrenal glands |
|
PDF Links
Full text via DOI
Download Citation 
CrossRef TDM
E-Mail 
