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Intracardiac teratomas are very rare primary cardiac tumors; only a few cases have been reported. We present the case of a 7-year-old boy who early in life showed pulmonary stenosis and needed percutaneous and surgical procedures, including sectioning of the right ventricular bands and reconstruction of the right ventricular outflow tract. At the age of 7 years the patient received a diagnosis of a multilobular cystic mass in the right ventricle adherent to the interventricular septum, which was not present at birth. Successful surgical resection was performed. Histologic examination revealed a mature teratoma. We emphasize the differential diagnosis of teratomas in cystic lesions of the interventricular septum.

The ovarian cystic teratoma is a rare cause of autoimmune haemolytic anaemia by warm antibodies, resistant to corticotherapy, with few case reports published in the medical literature. We present a case of a 45-year-old woman admitted to hospital due to general weakness. Laboratory studies revealed macrocytic anaemia, biochemical parameters of haemolysis and peripheral spherocytosis. The direct Coombs test was positive. Viral serologies, anti-nuclear antibodies, anti-double-stranded DNA antibodies and β2-microglobulin were negative. CT scan of the thorax, abdomen and pelvis showed a heterogeneous right anexial lesion. The patient was treated with corticotherapy without improvement of anaemia. Regression of extra-vascular haemolysis and normalisation of haemoglobin was obtained only after laparoscopic splenectomy and right ooforectomy, and the histopathology of the right anexial mass revealed a cystic teratoma. Previously published cases controlled the haemolysis by surgically removing the lesion associated with splenectomy.