Polymalformative genetic syndrome with increased risk of developing cancer Genetic overgrowth/obesity syndrome Hemihypertrophy UMLS:C0332890 ICD10:Q87.3 Hemicorporal hypertrophy orphanet Isolated hemihyperplasia is a rare overgrowth syndrome characterized by an asymmetric regional body overgrowth, involving at least one limb, and associated with an increased risk of developing embryonal tumors principally nephroblastoma (see this term) and hepoblastoma. Isolated hemihyperplasia MedDRA:10019463 OMIM:235000 Hemi 3 syndrome