Dean McHugh first noticed something was wrong with his daughter Marnie when he took her to an athletics class. The toddler’s attempt to run made her look like a "wounded soldier", dragging her leg behind.
Dean, 39, immediately booked a doctor's appointment, but it took a while until she received a diagnosis.
After going privately it was found that Marnie had a rare disease called Langerhans cell histiocytosis, which caused an inoperable tumour to grow on her hip socket.
