Diagnosis
Ø Can be present from time of birth or even before.
Ø Early diagnosis – size should be large in order for it to be identified as a tumour.
Ø Sacrococcygeal teratoma – may be diagnosed during ultrasounds and fetal scans antenatally.
Ø Ovarian teratoma – Mature cystic teratomas can be identified postnatally through physical examination, radiographic studies or through performing abdominal laproscopy.
Ø Testicular teratoma- may be diagnosed through examining testicles where they will appear to be enlarged and a firm mass could be identified.
Ø Mediastinal teratoma - this type of teratoma is occasionally discovered incidentally on chest radiograph.
Ø Initial diagnostic procedure for all types - Some tumours growing around embryo sac has chemicals like AFP (alpha fetoprotein) which can be detected via blood tests.
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The latter video shows fetal surgery on prenatals where teratoma has been identified.
This video is from the courtesy of https://www.chop.edu/ and is free of copyrights.