Bathing trunk nevi are thought to be caused by defects or problems that occur as a baby grows in the womb. However, in some families bathing trunk nevi may be inherited.
A bathing trunk nevus may occur with:
Growth of fatty tissue cells (lipomas) Neurofibromatosis Other nevi Spina bifida
Smaller congenital pigmented or melanocytic nevi are common in children and lead to fewer complications. Larger or giant nevi are fairly rare.
What causes Giant congenital nevus?
Bathing trunk nevi are thought to be caused by defects or problems that occur as a baby grows in the womb. However, in some families bathing trunk nevi may be inherited.
A bathing trunk nevus may occur with:
Growth of fatty tissue cells (lipomas) Neurofibromatosis Other nevi Spina bifida
Smaller congenital pigmented or melanocytic nevi are common in children and lead to fewer complications. Larger or giant nevi are fairly rare.