Persistent symptoms in children such as unexplained lumps, fever or unusual tiredness should be assessed when they do not improve. (Envato Elements pic)KUALA LUMPUR: A swollen gland, lingering fever or unusual tiredness in a child will usually have a common explanation. But when symptoms do not go away, parents may understandably begin to wonder whether something more serious is happening.

Lymphoma, a cancer of the lymphatic system, can affect both adults and children, although the types seen in younger patients often behave differently and require different approaches to treatment.

Consultant physician and haematologist Dr Haris Fadzillah Abdul Rahman said children are more likely to develop fast-growing forms of lymphoma, including lymphoblastic lymphoma, Burkitt lymphoma and anaplastic large-cell lymphoma.