Skeletal pathology

56 yr patient admitted with this situation. This abnormal growth was begun to develop at the age of 5 yr. Then gradually developed. No any complaints. Differential diagnosis and line of management.

A 12 years old boy suddenly noticed a hard swelling after a trivial trauma during playing football . The swelling developed in this form after 6 months. It is worm, tender, venous engorgement there. After seeing the location what may be the DD?

A 20-year-old male presented with a painless, hard subcutaneous mass in the popliteal fossa. He stated that the mass had been present for several years and did not change in size. X-ray & HPE images after resection are attached. Share your views regarding the case

A 12 year old boy comes to the OPD due to pain and deformity of the left leg.The patient 3 years prior noted a slowly growing mass on the left leg which was initially not associated with pain or tenderness and there was no limitation of motion noted.The condition was tolerated and thus no consultation was sought.The patient now complains of dull constant aching pain with progressive increase in the size of the mass of the left leg.What is the most probable diagnosis and the best treatment available for this patient?Kindly suggest the treatment protocol.

45yr old male presented with swelling on rt side chest since 3 months. Examination revealed it to b a pulsatile mass. P/h/of untreated syphilis. D/D?