Zhonghua wai ke za zhi [Chinese journal of surgery] · 1998
[Recurrent pheochromocytoma].
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Sun Z, Wang Y, Li Z
Аннотация
OBJECTIVE: To improve the diagnosis of recurrent pheochromocytoma.
METHODS: To study 11 cases of recurrent pheochromocytoma treated from 1970 to 1996.
RESULTS: The recurrence was due to the metastasis of malignant tumor and the multifocal occurrence of benign one. Extraadrenal pheochromocytomas tended to occur at several sites or metastasize. The metastatic places usually no show pheochromatic tissues, and the recurrent benign tumors were liable to grow at extraadrenal regions. The nature of recurrent tumors should be judged according to variant factors.
CONCLUSION: The recurrent pheochromocytomas are not malignant in nature, but they have considerable malignant tendency and should undergo intensive survelliance and regular examinations especially for the primary or recurrent extraadrenal pheochromocytomas.
METHODS: To study 11 cases of recurrent pheochromocytoma treated from 1970 to 1996.
RESULTS: The recurrence was due to the metastasis of malignant tumor and the multifocal occurrence of benign one. Extraadrenal pheochromocytomas tended to occur at several sites or metastasize. The metastatic places usually no show pheochromatic tissues, and the recurrent benign tumors were liable to grow at extraadrenal regions. The nature of recurrent tumors should be judged according to variant factors.
CONCLUSION: The recurrent pheochromocytomas are not malignant in nature, but they have considerable malignant tendency and should undergo intensive survelliance and regular examinations especially for the primary or recurrent extraadrenal pheochromocytomas.