ABSTRACT
Background: all cancer involves the production of abnormal cells are capable of irregular and independent growth that invades health body tissues. Metastases are a characteristic feature of all malignant tumors, which spread to distant areas of body via lymphatic system and blood stream
Material and Methods: this cross-sectional study included 50 patients with different Malignancies. The diagnosis of these patients had been established on the basis of Histopathology. These patients were taken from Oncology Department of lnmol Jinnah, Shaikh Zayed and Mayo Hospitals. Lahore. These patients underwent bone scan which was performed with technetium 99m methldipbosphonate. [99.m Tc-:-MDP]. Twenty five patients with positive bone scan findings were taken as group A and the other 25 patients with negative bone scan were marked as group-B. The metastatic involvement of these patients was found by performing bone marrow aspiration and trephine biopsy
Results: in our study, 9 out of 50 cases were positive for bone marrow infiltration. Out of these 5 cases [20%] were positive for bone marrow metastases in positive bone scan patients. Whereas 4 patients [16%] were positive for bone marrow metastases in negative bone scan patients
Conclusion: the study hence reveals that bone scan is a superior method for detection of bone marrow infiltration in patients with · malignant metastatic disease but bone marrow aspiration /trephine biopsy is also mandatory as it picked 4 patients [16%] out of 25 patients with negative bone scan