Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Hemifacial microsomia ?
    ### Response:
    Hemifacial microsomia (HFM) is a condition in which part of one side of the face is underdeveloped and does not grow normally. The eye, cheekbone, lower jaw, facial nerves, muscles, and neck may be affected. Other findings may include hearing loss from underdevelopment of the middle ear; a small tongue; and macrostomia (large mouth).
    