Answer of July 1999

Clinical History:

M/16 Right hip pain for few months.

Figure 1 Pelvic x-ray
Figure 2 Right hip x-ray

What is your diagnosis?

                                  Figure 1

                                  Figure 2

Diagnosis:

Giant cell tumour

Discussion:

Figure 1 Pelvic x-ray shows a lucent lesion in proximal right femur, extending to the tip of lesser trochanter with cortical thinning and mild bony expansion seen.

Figure 2 Right hip x-ray demontrates a narrow margin of transition with a punch out margin , minimal border sclerosis and slight periosteal reaction. Biopsy revealed Giant cell tumour.