Profile of Secondary Bone Cancer in Brazzaville


Objectives: To report an epidemiology study and prognosis for metastatic bone tumor. Methodology: It was a descriptive, transversal study on records of patients hospitalized in Rheumatology and Oncology-Radiotherapy departments of the University Teaching Hospital of Brazzaville, Congo from 1 January 2005 to 31 July 2011 (7 years and 6 months). The diagnosis of bone metastasis was made because of the existence of bone pain, or pathological fracture, or bone swelling and a bone-condensing or mixed or osteolytic radiological image. The anatomo-pathological evidence was made after biopsy of the bone lesion or primary cancer. 3687 patients were hospitalized for active cancer, among them 81 had documented bone metastasis. Results: There were 60 men (74.1%) and 21 women (25.9%) with a sex ratio of 2.85. The average age was 53 years, ranging from 3 to 80 years. 75% of patients were more or equal to 50 years old at the discovery of the bone metastasis. Bone pain was the main mode of discovery (67.9% of cases). However, in 6.2% of cases, it was discovered incidentally. The metastasis was bone condensing in 50.7% of cases, osteolytic in 40.7% and mixed in 8.6%. They were unifocal in 25.9% and multifocal in 74.1% of cases. The Primary cancer most frequently found was that of the prostate in 55.6% of cases, breast in 20.7% and rhabdomyosarcoma in 4.9%. In 6.2% of cases, the primary site of cancer was unknown. The average survival was 25 months. Conclusion: The clinical and radiological presentation remains classic. Cancer of the prostate and breast are the main neoplasia responsible for bone metastasis in our series. The discovery of metastasis remains a major evolutionary step of cancer.

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H. Ntsiba, N. N’soundhat, E. Ndounga and A. Ondzala, "Profile of Secondary Bone Cancer in Brazzaville," Open Journal of Rheumatology and Autoimmune Diseases, Vol. 3 No. 4, 2013, pp. 251-254. doi: 10.4236/ojra.2013.34039.

Conflicts of Interest

The authors declare no conflicts of interest.


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