Hemihypertrophy, a rare congenital disorder in which one side of the body is larger than the other, occurred in an infant. Hemihypertrophy is frequently associated with other defects such as mental retardation, Wilms' tumor, aniridia, ear deformities, internal hemangiomas, genitourinary malformations, adrenocortical neoplasms, brain tumors, and skeletal and endocrine disorders. Associated cutaneous findings include pigment disorders, telangiectasia, abnormal nail growth, and hypertrichosis.
Hurwitz S, Klaus SN. Congenital Hemihypertrophy With Hypertrichosis. Arch Dermatol. 1971;103(1):98-100. doi:10.1001/archderm.1971.04000130100018