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Purpose   Malawi is a low-income country in sub-Saharan Africa with limited health care infrastructure and high prevalance of HIV and tuberculosis. This study aims to determine the characteristics of patients presenting to Queen Elizabeth Central Hospital Oncology Unit, Blantyre, Malawi, who had been treated for tuberculosis before they were diagnosed with cancer.Methods   Clinical data on all patients presenting to the oncology unit at Queen Elizabeth Central Hospital from 2010 to 2014 after a prior diagnosis of tuberculosis were prospectively recorded, and a descriptive analysis was undertaken.Results   Thirty-four patients who had been treated for tuberculosis before being diagnosed with cancer were identified between 2010 and 2014, which represents approximately 1% of new referrals to the oncology unit. Forty-one percent of patients were HIV positive. Mean duration of tuberculosis treatment before presentation to the oncology unit was 3.6 months. The most common clinical presentation was a neck mass or generalized lymphadenopathy. Lymphoma was the most common malignancy that was subsequently diagnosed in 23 patients.Conclusion   Misdiagnosis of cancer as tuberculosis is a significant clinical problem in Malawi. This study underlines the importance of closely monitoring the response to tuberculosis treatment, being aware of the possibility of a cancer diagnosis, and seeking a biopsy early if cancer is suspected.

Tuberculosis Diagnosis Delaying Treatment of Cancer: Experience From a New Oncology Unit in Blantyre, Malawi