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Multicentric pheochromocytoma and involvement of the inferior vena cava
oleh: Antonio Marmo Lucon, Renato Falci Júnior, José Nery Praxedes, Marcel Cerqueira Cesar Machado, Luis Balthazar Saldanha, Marcelo Marcondes Machado, Sami Arap
Format: | Article |
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Diterbitkan: | Associação Paulista de Medicina |
Deskripsi
CONTEXT: Extension of pheochromocytomas to the inferior vena cava is rare. Multicentric tumors are rare as well, being present in up to 10% of cases. Surgery is the treatment of choice because of the long-term survival free of disease. DESIGN: Case report. CASE REPORT: We report on a case of right adrenal pheochromocytoma with extension to the supra-diaphragmatic vena cava, which underwent surgical excision through thoracophrenic laparotomy without the need for cardiopulmonary bypass. In a 6-year follow-up, another pheochromocytoma was found in the infra-renal Zuckerkandl's organ. Complete surgical excision of the tumor was performed by a median laparotomy and complete retroperitoneal dissection. In both cases, the total removal of the pheochromocytoma has been guaranteed by having margins free of tumor and a normal post-operative level of catecholamines. The pathological study revealed a malignant pheochromocytoma with margins free of neoplasia in both specimens.