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Feocromocitoma quístico: a propósito de un caso / Cystic pheochromocytoma: report of a case
Ahualli, Jorge; Méndez-Uriburu, Martín; Ravera, María Laura.
  • Ahualli, Jorge; Centro Radiológico Luis Méndez-Collado. Tucumán. AR
  • Méndez-Uriburu, Martín; Centro Radiológico Luis Méndez-Collado. Tucumán. AR
  • Ravera, María Laura; Centro Radiológico Luis Méndez-Collado. Tucumán. AR
Rev. argent. radiol ; 72(2): 177-180, 2008. ilus
Article in Spanish | LILACS | ID: lil-590566
RESUMEN
La prevalencia de los feocromocitomas en autopsia es de aproximadamente 0.13%. Estas neoplasias, compuestas de células cromafínicas derivadas embiológicamente del neuroectodermo son responsables de tan solo el 0.1% al 0.3% de los casos de hipertensión arterial. Los feocromocitomas constituyen lesiones hipervascularizadas, las que suelen presentar degeneración quística parcial o focal. Sin embargo, y de manera infrecuente, pueden sufrir degeneración quística total o subtotal existiendo algunos reportes en la literatura mundial que describen tumores totalmente quísticos. Se ha postulado que dicha degeneración quística sería secundaria a hemorragia intraparenquimatosa seguida de necrosis y posterior resorción, reflejando estas lesiones un proceso de necrosis y liquefacción intratumoral.
ABSTRACT
Prevalence of pheochromocytomas at autopsy is 0.13% and these uncommon neoplasms account for only 0.1%-0.3% of cases of hypertension. The tumor is composed of chromaffin cells, wich are embryologically derived from the neuroectoderm. Pheochromocytomas are quite vascular lesions. However, they frequently manifest with focal or partial cystic degeneration. Total o subtotal cystic degeneration is not common. There have been several reports in the literature describingtotally cystic tumors. It has been postulated that this cystic degeneration starts with intraparenchymal hemorrhage followed by necrosis; the areas of necrosis later undergo resorption. The cystic components of pheochromocytomas reflect this necrosis and liquefaction within the tumor.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Pheochromocytoma / Tomography, Spiral Computed Type of study: Diagnostic study / Risk factors Language: Spanish Journal: Rev. argent. radiol Journal subject: Diagnostic Imaging / Radiology Year: 2008 Type: Article Affiliation country: Argentina Institution/Affiliation country: Centro Radiológico Luis Méndez-Collado/AR

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Full text: Available Index: LILACS (Americas) Main subject: Pheochromocytoma / Tomography, Spiral Computed Type of study: Diagnostic study / Risk factors Language: Spanish Journal: Rev. argent. radiol Journal subject: Diagnostic Imaging / Radiology Year: 2008 Type: Article Affiliation country: Argentina Institution/Affiliation country: Centro Radiológico Luis Méndez-Collado/AR