Headache--a rare presenting symptom in multiple myeloma: a case report.

Headache is a rare symptom in multiple myeloma (MM). A 34-year-old black female presented with severe headache and investigation subsequently led to the diagnosis of non-secretory MM. Non-secretory MM is seen in less than one percent of MM cases. Further-more, less than two percent of MM cases are seen under the age of 40 years. An increasing number of cases of MM are being described in young adults. Attention is drawn to entertaining a diagnosis of MM even in those under age 40 years who may manifest unusual features of the disease.