Abstract
High-dose methotrexate is the backbone of various regimens for treating lymphoid malignancies.
Mucositis is a well-known, dose-related side effect of methotrexate. Prophylactic
measures such as folinic acid rescue are useful but do not prevent mucositis in all
the cases. Once severe mucositis (WHO Grade IV) sets in, mortality is very high. The
index case highlights the natural course of methotrexate-induced mucositis and the
need for swift and preemptive intervention.
Keywords
Lymphoid malignancy - methotrexate - mucositis