Talk:Congenital heart disease

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Muscle excision

Microscopic

A. The sections show normal cardiac myocytes and mild endocardial fibrosis, covered by benign endothelial cells. There is no inflammation and no haphazard arrangement of muscle fibres.

B. The sections show cardiac myocytes and mild endocardial fibrosis, covered by benign endothelial cells. There is focal myofiber replacement by fibrous tissue with reactive hypertrophy (including increase of fiber size and nuclear size) of the remaining fibres. There is no inflammation and no haphazard arrangement of muscle fibres.

C. The section shows a laminated thrombus with focal calcifications and entrapped blood constituents. Special stains (GMS, Gram, PAS-D) did demonstrate micro-organisms.

Final diagnosis

A. Heart, right ventricle, muscle excision - mild endocardial fibrosis.

B. Heart, ventricular septum, muscle excision - mild endocardial fibrosis and focal hypertrophic changes.

C. Infundibulum clot, excision - laminated thrombus with focal calcification.

Septectomy

See also: Talk:Thymus.

Microscopic

The sections show fibrous tissue and cardiac muscle covered by endothelium on two sides. There is mild muscle fibre hypertrophy with focal nuclear enlargement and mild endocardial fibroelastosis. There is no inflammation and no haphazard arrangement of muscle fibres.

Final diagnosis

Heart, atrial septum, septectomy - Mild endocardial fibroelastosis and mild hypertrophic changes.