Classification of bone tumor cases admitted to the National Orthopedic Hospital

From Jan. 1, 1946 to Dec. 31 1962 we were able to collect 605 bone tumors. The lesions were group-into 3 major divisions, namely: (1) Primary Bone Tumors, (2) Secondary Bone Tumors and (3) Osseous Lesions simulating Bone Tumors. Under Primary Bone Tumors are included the benign and malignant conditions that originate from the bone tissue and from the different tissues found inside the bone. Secondary Bone Tumors are neoplasms that arise elsewhere and involve the bone. The osseous lesions simulating bone tumors consist of a heterogenous group. There were 410 primary bone tumors, 145 secondary bone tumors and 50 bone lesions simulating bone tumors. The most common primary bone tumor is osteogenic sarcoma followed by giant cell tumor and then by osteochondromaAmong the secondary bone tumors the most common metastatic tumor originates from the thyroid gland. This is followed, according to their order of frequency, by neoplasms arising from the lungs, breast, and kidneysThe characteristic features of the different primary bone tumors are briefly discussedTaking for granted that the yearly average admission of patients is 2,500 the total bone tumors and allied lesions listed above presents 1.51% of the total admissions during the last 16 years. (Summary)

Osteogenic sarcoma of bone: a review of 158 cases admitted to the National Orthopedic Hospital

A discussion of the clinical, radiological, and pathological aspects of osteogenic sarcoma has been presentedA review of 158 cases of osteogenic sarcoma admitted to the National Orthopedic Hospital has been made. There is a predominance of male cases over the females. The age incidence in which this neoplasm is frequently found is between 10 and 25 years. The most common site of location is the lower half of the femur and upper third of the tibia, followed by the upper half of the humerusPain and swelling are the most frequent symptoms observed. The average duration of the illness before the patient is seen is 4 months. Regardless of the type of surgery, the outcome is always fatal. Of the fifty-five cases that had been followed up only 5 reached the 5-year survival period. One of them reached the ten-year survival period. Of the 50 patients that had been followed and died, 42 died of respiratory failure due to widespread metastases. Four died of operative shock, two of post-operative complication and two of exsanguination. (Summary)