Sorry for bothering again, but I would be greatly appreciated if someone could give an advice again (Johnwen?). They did more tests since the doctors wasn't sure that it is indeed myxoma - and after new EchoCG, MRI & CT Scan they don't know what it is at all now. I'll quote the papers below & here is the link to photos & videos from these tests (along with quoted conclusion papers):
https://www.sendspace.com/file/ixwhu1 Could you please write your thoughts on this, have you dealt with anything like this in the past & what can we do to help this young boy. Thank you very much!
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-=EchoCG=-
EDD - 4,5 cm
ESD - 2,7 cm
RV - 2,3 cm
Ao - 2,1 cm
AAo - 2,1 cm
LA - 3,3(4,6*3,6) cm
RA - 4,8*4,0 cm
IVS - 0,7 cm
PWLV - 0,7 cm
EF - 71 %
FS - 40 %
SV - 72 ml
Chambers of the heart: right ventricular cavity is moderately dilated. In the projection of both atriums along the whole IAS is space-occupying lesion sized 5,3*3,9 cm, not associated with the structures of the TV valve, without obstruction of the AV orifice/openings. The lesion is closely adjacent to the base of the aorta and the base of the anterior mitral leaflet.
Accelerated flow in the superior vena cava with HD 7 mm Hg.
IVS - traced/observed along the whole length.
IAS - not traced/observed clearly
Retractive function of the myocardium of the left ventricle is satisfactory.
Areas of hypokinesis are not revealed.
Aorta is not dilated.
Aortal valve: leaflets are thin, flexible, HD 9 mm Hg.
Mitral valve: leaflets are thin, flexible.
Tricuspid valve: without peculiar properties.
Pulmonary artery: not dilated, trunk diameter 2,2 cm.
Pulmonary artery valve: without peculiar properties, HD 7 mm Hg.
Extra chord/tendon in the middle third of the cavity of the left ventricle
Pericardial features: no effusion.
Doppler EchoCG (with CDM):
Mitral regurgitation - ( no )
Tricuspid regurgitation - ( + )
Aortal regurgitation - ( no )
Estimated pressure in the right ventricle 23 mm Hg.
HD in the superior vena cava 7 mm Hg.
Conclusion: space-occupying lesion in the atria. CT scan is recommended to clarify the localization.
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-=CT Scan=-
Scan mode: spiral. The slice thickness: 0,5mm.
Contrast enhancement - "Ultravist 370" 50ml.
Objective: to exclude space-occupying lesions of the atrium.
Vessels of the mediastinum are not dilated.
Thoracic aorta without changes: ascending section 17,5 mm, at BCV level 16mm, at the level of the left subclavian artery 15mm, descending 14mm, at crura of diaphragm level 12,5mm, pulmonary trunk 17mm, right branch 13mm, left 15mm.
Pulmonary veins flow typically into left atrium.
Interatrial septum is partially traced in the lower/basal divisions, he rest of the length is not clearly differentiated due to the presence of space-occupying lesion with clear/distinct, sometimes bumpy/uneven contours, sized 53x34x50mm, fairly homogeneous patterns/structure of densitometric density 53-60HU, with areas of partial calcification at the periphery and a single section hypodensive density (up to 31HU) sized 7x11mm. This lesion compress SVC orifice to slit-like form up to 2mm in cross-section, without the prolapse through the atrioventricular orifice/openings and the involvement of valves, "wraps/surrounds" the posterior contour of the base of the aorta without convincing signs of invasion. Functional internal volume of the atrium is reduced. In the venous phase of contrast (70 sec.) accumulation of contrast agent by mass lesion is not observed (contrast gradient of less than 5 HU).
Coronary arteries depart typically from the coronary aortic sinuses, evenly contrasted, with a close location from the present lesion, without signs of invasion.
Interventricular septum is traced/observed along the whole length without reliable/certain signs of a break. Fluid in the pericardial cavity is not detected.
Conclusion: CT-image of space-occupying lesion in the projection of the interatrial septum (fibroma?).
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Thank you!