Clinical implications of serum C-reactive protein levels in malignant fibrous histiocytoma.
Paraneoplastic syndromes (PNSs) associated with mesenchymal tumors are uncommon. Previous reports sporadically described inflammatory PNSs with elevated serum C-reactive protein (CRP) levels and leukocytosis in patients with inflammatory malignant fibrous histiocytoma (MFH) of soft tissue; however, the relationship between other subtypes of MFH and PNS has not been extensively investigated. Forty-six patients with primary MFH of soft tissues who underwent radical surgery were retrospectively analyzed. These patients were divided into 2 groups according to preoperative serum CRP level: normal (<1.0 mg/dl) and elevated (> or = 1.0 mg/dl). The correlation between serum CRP level and several clinicopathologic factors was analyzed. Correlation between preoperative serum CRP level and metastasis-free and overall survival was also investigated by univariate and multivariate analyses. Elevated preoperative serum CRP levels were found in 65% of patients with a mean of 3.7 mg/dl. There were statistically significant relationships regarding tumor size, depth, histologic subtypes, grade, stage and metastatic rate among normal and elevated CRP groups (p < 0.001, p < 0.02, p < 0.005, p < 0.001, p < 0.001 and p < 0.05, respectively). When the tumor was removed, the elevated CRP level subsided into the normal range and other abnormal laboratory findings diminished in all cases. In 11/14 relapsed cases that showed elevated CRP preoperatively, the serum CRP level re-elevated with tumor relapse. The normal CRP group showed significantly more favorable prognosis than the elevated CRP group in metastasis-free and overall survival on univariate analysis (p < 0.02, p < 0.05, respectively). Patients with MFH frequently present with an inflammatory PNS, such as elevated serum CRP level, which can be a useful marker of disease activity and a valuable prognostic indicator.
Nakanishi
Hirofumi
H
Department of Orthopedic Surgery, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan. h-nakanishi@mvf.biglobe.ne.jp
Araki
Nobuhito
N
Kudawara
Ikuo
I
Kuratsu
Shigeyuki
S
Matsumine
Akihiko
A
Mano
Masayuki
M
Naka
Norifumi
N
Myoui
Akira
A
Ueda
Takafumi
T
Yoshikawa
Hideki
H
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor / Q000097:blood; D002097:C-Reactive Protein / Q000032:analysis*; D005260:Female; D018219:Histiocytoma, Benign Fibrous / Q000097:blood* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local; D010257:Paraneoplastic Syndromes / Q000097:blood; D011379:Prognosis; D012189:Retrospective Studies; D015996:Survival Rate
D014408:Biomarkers, Tumor; D002097:C-Reactive Protein