Prostaglandin levels of primary bone tumor tissues correlate with peritumoral edema demonstrated by magnetic resonance imaging. 1997

S Yamamura, and K Sato, and H Sugiura, and H Katagiri, and Y Ando, and H Fukatsu, and H Iwata
Department of Orthopaedic Surgery, Nagoya University School of Medicine, Japan.

BACKGROUND Several reports have shown peritumoral edema accompanying primary bone tumors demonstrated by magnetic resonance imaging (MRI). However, the mechanism of this inflammatory reaction is still unclear. The authors postulated that the reaction was caused by some chemical mediators including prostanoids, because several investigators have observed that some types of bone tumors synthesize prostanoids. Therefore, the authors compared MRI findings and tumor prostaglandin (PG) levels. METHODS The subjects were 29 patients with primary bone tumor or tumor-like conditions: chondroblastoma (n = 5); chondrosarcoma, including rare variants (n = 8); giant cell tumor (n = 6); osteochondroma (n = 5); osteoblastoma (n = 2); Ewing's sarcoma (n = 2); and eosinophilic granuloma (n = 1). T1- and T2-weighted spin echo images were obtained in all but one patient before surgery. The tumor concentration of prostaglandin E2, 6-keto-PGF1 alpha, and thromboxane B2 were measured by radioimmunoassay. RESULTS MRI distinctly showed bone marrow edema in 9 and soft tissue edema in 12 of the 28 patients examined. These findings were significantly correlated with the PG levels. Moreover, the PG levels were correlated with the histologic classifications (P < 0.001). In particular, the chondroblastomas showed prominent concentrations of PGs compared with other cartilaginous tumors or giant cell tumors. CONCLUSIONS Although peritumoral edema accompanying benign and malignant bone tumors is not necessarily related to one single pathophysiologic mechanism, these results suggest that PG production was an important cause of the inflammatory reaction that was revealed by MRI. Recognition of this phenomenon is advantageous not only for strict diagnostic purposes but also for understanding the characteristic features of individual primary bone tumors.

UI MeSH Term Description Entries
D008279 Magnetic Resonance Imaging Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques. Chemical Shift Imaging,MR Tomography,MRI Scans,MRI, Functional,Magnetic Resonance Image,Magnetic Resonance Imaging, Functional,Magnetization Transfer Contrast Imaging,NMR Imaging,NMR Tomography,Tomography, NMR,Tomography, Proton Spin,fMRI,Functional Magnetic Resonance Imaging,Imaging, Chemical Shift,Proton Spin Tomography,Spin Echo Imaging,Steady-State Free Precession MRI,Tomography, MR,Zeugmatography,Chemical Shift Imagings,Echo Imaging, Spin,Echo Imagings, Spin,Functional MRI,Functional MRIs,Image, Magnetic Resonance,Imaging, Magnetic Resonance,Imaging, NMR,Imaging, Spin Echo,Imagings, Chemical Shift,Imagings, Spin Echo,MRI Scan,MRIs, Functional,Magnetic Resonance Images,Resonance Image, Magnetic,Scan, MRI,Scans, MRI,Shift Imaging, Chemical,Shift Imagings, Chemical,Spin Echo Imagings,Steady State Free Precession MRI
D009363 Neoplasm Proteins Proteins whose abnormal expression (gain or loss) are associated with the development, growth, or progression of NEOPLASMS. Some neoplasm proteins are tumor antigens (ANTIGENS, NEOPLASM), i.e. they induce an immune reaction to their tumor. Many neoplasm proteins have been characterized and are used as tumor markers (BIOMARKERS, TUMOR) when they are detectable in cells and body fluids as monitors for the presence or growth of tumors. Abnormal expression of ONCOGENE PROTEINS is involved in neoplastic transformation, whereas the loss of expression of TUMOR SUPPRESSOR PROTEINS is involved with the loss of growth control and progression of the neoplasm. Proteins, Neoplasm
D001859 Bone Neoplasms Tumors or cancer located in bone tissue or specific BONES. Bone Cancer,Cancer of Bone,Cancer of the Bone,Neoplasms, Bone,Bone Neoplasm,Neoplasm, Bone
D002804 Chondroblastoma A usually benign tumor composed of cells which arise from chondroblasts or their precursors and which tend to differentiate into cartilage cells. It occurs primarily in the epiphyses of adolescents. It is relatively rare and represents less than 2% of all primary bone tumors. The peak incidence is in the second decade of life; it is about twice as common in males as in females. (From Dorland, 27th ed; Holland et al., Cancer Medicine, 3d ed, p1846) Chondroblastomas
D004487 Edema Abnormal fluid accumulation in TISSUES or body cavities. Most cases of edema are present under the SKIN in SUBCUTANEOUS TISSUE. Dropsy,Hydrops,Anasarca
D004803 Eosinophilic Granuloma The most benign and common form of Langerhans-cell histiocytosis which involves localized nodular lesions predominantly of the bones but also of the gastric mucosa, small intestine, lungs, or skin, with infiltration by EOSINOPHILS. Granuloma, Eosinophilic,Eosinophilic Granulomas,Granulomas, Eosinophilic
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012516 Osteosarcoma A sarcoma originating in bone-forming cells, affecting the ends of long bones. It is the most common and most malignant of sarcomas of the bones, and occurs chiefly among 10- to 25-year-old youths. (From Stedman, 25th ed) Sarcoma, Osteogenic,Osteogenic Sarcoma,Osteosarcoma Tumor,Osteogenic Sarcomas,Osteosarcoma Tumors,Osteosarcomas,Sarcomas, Osteogenic,Tumor, Osteosarcoma,Tumors, Osteosarcoma
D013929 Thromboxane B2 A stable, physiologically active compound formed in vivo from the prostaglandin endoperoxides. It is important in the platelet-release reaction (release of ADP and serotonin). B2, Thromboxane
D015121 6-Ketoprostaglandin F1 alpha The physiologically active and stable hydrolysis product of EPOPROSTENOL. Found in nearly all mammalian tissue. 6-Keto-PGF1 alpha,6-Oxo-PGF1 alpha,6-Oxoprostaglandin F1 alpha,6 Ketoprostaglandin F1 alpha,6 Keto PGF1 alpha,6 Oxo PGF1 alpha,6 Oxoprostaglandin F1 alpha,F1 alpha, 6-Ketoprostaglandin,F1 alpha, 6-Oxoprostaglandin,alpha, 6-Keto-PGF1,alpha, 6-Ketoprostaglandin F1,alpha, 6-Oxo-PGF1,alpha, 6-Oxoprostaglandin F1

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