Mielolipoma hepático en una hernia diafragmática peritoneo-pericárdica en un gato: Reporte de caso.

Hepatic myelolipoma in a peritoneopericardial diaphragmatic hernia in a cat: case report. (Spanish)

A 10.5-year-old cat was received with sudden anorexia and dyspnea. Ultrasonographic examination of the thoracic cavity revealed that the heart was compressed by a mass on its right aspect. At necropsy, a peritoneo-pericardial diaphragmatic hernia was found, and a portion of the liver and omentum were found within the pericardial sac. Histopathology of the herniated liver revealed the presence of a neoplastic mass characterized by numerous adipocytes, myeloid and erythroid progenitor cells including megakaryocytes and bone spicules (myelolipoma). Peritoneo-pericardial diaphragmatic herniation of the liver is usually an asymptomatic congenital defect in cats. It is considered as an incidental finding and it is frequently associated with hepatic myelolipoma in feline species. [ABSTRACT FROM AUTHOR]

Se presenta un gato de 10,5 años de edad con anorexia repentina y disnea. Al examen ultrasonográfico de tórax se detectó una masa que comprimía el corazón en el lado derecho. A la necropsia se observó una hernia diafragmática peritoneo pericárdica, misma que contenía segmentos de omento e hígado atrapados dentro del saco pericárdico. Al análisis microscópico, se observó un tejido de neoformación en el segmento de hígado herniado, el cual presentaba un gran número de adipocitos, megacariocitos y células progenitoras mieloides y eritroides, además de pequeños fragmentos óseos. La hernia diafragmática peritoneo pericárdica con atrapamiento hepático es un defecto congénito generalmente asintomático en gatos. Su hallazgo suele ser incidental, y se ha observado que generalmente se asocia al mielolipoma hepático en felinos. [ABSTRACT FROM AUTHOR]

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