BACKGROUND: @entity4617 are rare lesions with variegated histological types. Their clinicopathological features could be more comprehensively categorized. METHODS: This is a 19-year retrospective study of 17 @entity1 /toddlers (<2 years of age) and 42 @entity1 aged between 14 and 79 years (mean = 51.5) in a surgical center. RESULTS: @entity5 (n = 17; 29%), including @entity4618 (n = 9), ventricular @entity81 (n = 6), and @entity2695 (n = 1), required surgery mainly because of mass effect. @entity28222 was the only embolic @entity66 . Acquired @entity5 (n = 28; 47%) included @entity3291 (n = 21), fibroelastomas (n = 3), myofibroblastic @entity5 (n = 2), and @entity362 (n = 2). Eight (29%) were revealed by systemic embolization. These @entity5 were all treated by complete resection, except for an incompletely resected @entity362 . Postoperative @entity943 (n = 1) and pericardial effusion (n = 3) were the only complications. Primary @entity242 (n = 8; 14%) were @entity5 (five of eight), and @entity1 with high-grade @entity5 had a mean survival of 15 months (n = 5). Cardiac @entity3 (n = 6; 10%) were from @entity189 (n = 3) or @entity242 (n = 3); apart from a necrotic @entity3 , all @entity1 died (mean survival of 6 months). CONCLUSIONS: This study shows that, regardless of @entity1 ' age, @entity4617 can be classified as: (a) @entity66 , which are spontaneously nonprogressive or regressive lesions possibly requiring surgery mainly because of mass effect; (b) acquired @entity5 , which are lesions requiring surgery often because of embolization risk; and (c) primary and secondary @entity5 , which are lesions with globally poor prognosis but with some indications for resection.

@entity4617 in XXXX and adults: clinicopathological study of 59 @entity1 from a surgical center.

@entity1 :: ('9606', 'Species') :: ['infants', 'patients'] @entity66 :: ('MESH:D004194', 'Disease') :: ['congenital lesions', 'congenital lesion'] @entity943 :: ('MESH:D001145', 'Disease') :: ['arrhythmia'] @entity2695 :: ('MESH:D006391', 'Disease') :: ['hemangiomas'] @entity5 :: ('MESH:D009369', 'Disease') :: ['Congenital tumors', 'inflammatory tumors', 'benign noncongenital tumors', 'benign tumors', 'mostly vascular tumors', 'tumors', 'malignant tumors'] @entity362 :: ('MESH:D008067', 'Disease') :: ['lipoma of the mitral valve', 'lipomas'] @entity242 :: ('MESH:D012509', 'Disease') :: ['sarcomas'] @entity3291 :: ('MESH:D009232', 'Disease') :: ['myxomas'] @entity189 :: ('MESH:D002277', 'Disease') :: ['carcinomas'] @entity4617 :: ('MESH:D006338', 'Disease') :: ['Heart tumors', 'heart tumors'] @entity4618 :: ('MESH:D012207', 'Disease') :: ['rhabdomyomas'] @entity3 :: ('MESH:D009362', 'Disease') :: ['metastases', 'metastasis'] @entity28222 :: ('MESH:D018224', 'Disease') :: ['Familial myofibromatosis'] @entity81 :: ('MESH:D005350', 'Disease') :: ['fibromas']
@entity1 :: (9606,Species) :: ['children']
