PRAKTIKUM TULANG49.Osteomielitis50.Arthritis Rheumatoid51.Osteoid Osteoma52.Osteosarkoma53.Osteokondroma54.Kondrosarkoma55.Sarkoma EwingTumor Sel Datia Tulang (Osteoklastoma)Penyakit Pagets Tulang (Osteitis deformans)58.Osteoartritis

49A. OSTEOMIELITIS

49B. OSTEOMIELITIS KRONIK

49C. OSTEOMIELITIS KRONIK

50A. ARTHRITIS RHEUMATOID

50B. ARTHRITIS RHEUMATOID (200X)

50C. ARTHRITIS REMATOIDFibrinoid nekrosis

51.

52A. OSTEOSARKOMA, makroskopik

52B. OSTEOSARKOMA

52C.

53A. OSTEOKONDROMATumor

53B.

54A. KONDROSARKOMA Ischium pelvisTumor

54B.

54C.

55A. EWING TUMOR Tumor

55B.

56A. GIANT CELL TUMORTumor

56B.

56C.

57.

58.

*Pyogenic osteomyelitis is a smouldering lesion, which may form open sinus tracts to the skin, as seen here. *This is chronic osteomyelitis. Note the fibrosis of the marrow space accompanied by chronic inflammatory cells. There can be bone destruction with remodelling. Osteomyelitis is very difficult to treat.*Here is a rheumatoid nodule. Such nodules are seen in patients with severe rheumatoid arthritis and appear beneath the skin over bony prominences such as the elbow. They can occasionally appear in visceral organs. There is a central area of fibrinoid necrosis surrounded by pallisading epithelioid macrophages. and other mononuclear cells.*This femur has a large eccentric tumor mass arising in the metaphyseal region. This is an osteosarcoma (a variant known as parosteal osteogenic sarcoma) of bone. These tumors most often occur in young persons (note that the epiphysis seen at the right is still present).

*This is an osteochondroma cut into three sections. A bluish-white cartilagenous cap overlies the bony cortex. These are probably not true neoplasms, but they are a mass lesion that extends outward from the metaphyseal region of a long bone.

*Here is a chondrosarcoma involving the ischium of the pelvis. The tumor is composed of lobulated glistening white to bluish-white tissue that breaks through the cortex. In general, peripheral cartilagenous tumors (e.g., fingers) are benign and those arising in the central axial skeleton are malignant.*This is Ewing's sarcoma. This primary bone tumor mainly occurs in the diaphysis of long bones of children and young adults. There is a slight male predominance. As seen here, the irregular tan to red to brown tumor mass is breaking through the cortex. More normal fatty marrow is seen at the far right.

*

*Tumor berlokasi pada femur proksimal, berupa masa tumor merah kehitaman akibat adanya perdarahan yang ireguler pada bagian epiphysis.*