Mosaic genome-wide paternal uniparental disomy is an infrequently described disorder in which affected individuals have signs and symptoms that may resemble Beckwith–Wiedemann syndrome. In addition, they can develop multiple benign and malignant tumors throughout life. Routine molecular diagnostics may not detect the (characteristic) low level of mosaicism, and the diagnosis is likely to be missed. Genetic counseling and a life-long alertness for the development of tumors is indicated. We describe the long diagnostic process of a patient who already had a tumor at birth and developed multiple tumors in childhood and adulthood. Furthermore, we offer clues to recognize the entity

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Keywords body asymmetry, paternal uniparental disomy, syndrome, tumors
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Journal Pediatric Blood & Cancer
Postema, FAM, Bliek, J, van Noesel, C.J.M., van Zutven, L., Oosterwijk, J.C, Hopman, S.M.J, … Hennekam, R.C.M. (2019). Multiple tumors due to mosaic genome-wide paternal uniparental disomy. Pediatric Blood & Cancer, 66(6). doi:10.1002/pbc.27715