Cardiac Myxoma of the Tricuspid Valve in a Dog

Cardiac Tumors

“…The frequency of hemangiosarcomas is almost 10 times that of chemodectomas [5]. Less common heart tumors include granular cell tumors [6], chondrosarcomas [7], osteosarcomas [8], fibromas [9], fibrosarcomas [10,11], cardiac lipomas [12], malignant mesenchymal tumors [13], lymphomas [14,15], rhabdomyosarcomas [16,17], neurofibromas [18], angiolipomas [19], myxomas [20][21][22][23], right atrial myxosarcomas [21,24,25], ectopic thyroid carcinomas [26][27][28], and pericardial mesothelioma ( Figure 18-1) [1,5].…”

“…Myxosarcomas are extremely rare [24]. Myxomas are more frequently encountered attached to the atrioventricular valvular leaflets (Figure 18-16) [20,23]. A tumor can also come from another location (such as an adrenal gland) and invade the right atrium and sometimes the right ventricular cavity via the caudal vena cava.…”

Prevalência e aspectos anatomopatológicos das neoplasias primárias do coração, de tecidos da base do coração e metastáticas, em cães do Sul de Minas Gerais (1994-2009)

“…O quimiodectoma é o tumor de maior ocorrência, depois do hemangiossarcoma cardíaco (Walter & Rudolph 1996, Ware & Hopper 1999. Também são descritos como tumores primários do coração em caninos o rabdomiossarcoma (Aupperle et al 2007), o rabdomioma (Girard et al 1999, Radi & Metz 2009, o ϐibrossarcoma (Madarame et al 2004, Speltz et al 2007, o neuroϐibrossarcoma (Aupperle et al 2007), os mesenquimomas malignos (tumores constituídos por vá-rios tipos de células mesenquimais) (Machida et al 2002), o schwannoma maligno (Wohlsein et al 2005), o condrossarcoma (Albers et al 1997, LaRock et al 1997, o osteossarcoma (Schelling & Moses 1994, Warman et al 2006, o mixoma (Symbas et al 1976), o mixoma valvular (Machida et al 2003, Akkoc et al 2007, o leiomiossarcoma (Fews et al 2008), o mesotelioma (Cobb & Brownlie 1992, Girard et al 1999, Brower et al 2006, o lipoma (Brambilla et al 2006, Ben-Amotz et al 2007) e o sarcoma mioϐibroblástico (Grieco et al 2008).…”

Cardiac Myxosarcoma With Adrenal Adenoma and Pituitary Hyperplasia Resembling Carney Complex in a Dog

“…9 Cardiac myxomas are rare primary heart tumors in dogs. 2,3,8,10,13,14 In humans, myxomas compose 50% of primary cardiac neoplasms and present as a single lesion or with other proliferative lesions as Carney complex (CNC). 7 CNC is a genetically heterogeneous, autosomal dominant syndrome resulting in multiple cardiac, endocrine, cutaneous, and neural tumors, as well as a variety of pigmented lesions of the skin and mucosae.…”