Humans ; Multiple Myeloma ; pathology ; Neoplasm Metastasis

Humans ; Multiple Myeloma ; Societies, Medical ; United States

Humans ; POEMS Syndrome ; diagnosis ; therapy

Histocytological Preparation Techniques ; methods ; Microtomy ; methods ; Tissue Embedding

Objective To study the etiology,clinical characteristics,electroencenphalography(EEG),mental degree of Lennox-Gastaut syndrome(LGS). Method Retrospectively analyzed etiology,sex,age,seizure types,EEG,mental degree of 54 children diagnosed as LGS. Results The number of male was 36,female was 18,seizure onset from 1 month to 8 years,diagnosing age from 3 months to 11years. The EEG reveals 1.5-2.5 Hz spike-wave discharges and a slow baseline activity. Conclusions LGS is one of the most difficult epilepsys to treat and need frequently more than 2 antiepilepsy drugs. It is characterized by variable etiology,multiple types of intractable seizures, and has enormous detrimental effects on patient′s developmental health.

We have found the parallel relationship between the live cell number of several tumor cell lines and the formation of MTT formazan with MTT colorimetric assay. The MTT colorimetric assay was compared with ~3H-Tdr incorporation assay for the proliferation of mouse spleen cells induced by mitogens or the activity of rat/mouse IL2,the results suggested that the ~3H-Tdr incorporation assay can be replaced by MTT colorimetric assay. MTT colorimetric assay have the advantages of simplicity, rapidity,save any radioisotope and no specific equivepment, etc, so under some conditions it would be a useful method for measuring cell proliferation or cytotoxicity in a laboratory.

Objectives To investigate and evaluate the preventive and therapeutic effects of celecox ib,a selective cyclooxygenase-2(COX-2)inhibitor,on multiple colorectal adenorna and compare it with aspirin.Methods Ninty-six patients with colorectal multiple adenoma were randomly divided into A,B and C groups.Adenomas in all patients were removed with high-frequency eleetrocoagulation,electroexci- sion or argon plasma coagulation(APC)under colonoscopy.Then,group A were administered celecoxib 200 mg twice daily,group B aspirin 50 mg twice daily,group C served as control.Colonoscopy was per formed every 6 months in the first year,and every year in order to observe and evaluate the recurrence rate of adenoma and the side effects after the treatment.Results Twenty-seven patients in group A,26 pa- tients in group B and 27 patients in group C had completed the treatment.At the end of the treatment, on PP/ITT analysis,the cure rate of the eolorectal adenoma were 84.4%/100% ,78.1%/96.2% and 75.0%/88.9% in group A,B and C,respectively.During the first year of follow-up,there were 1 ,1 and 6 cases which were found recurrences of the adenomas in group A,B and C,respectively.The recurrence rates of coloreetal adenomas in group A(3.7%)and group B(4.0%)were significantly low er than that in group C(24.0%) (P＜0.05 and＜0.05,respectively).At the end of follow-up,the total recurrence rate of colorectal adenomas in group A(14.80%)and group B(19.2%)were significant- ly lower than that in group C(46.2%)(P＜0.05 and＜0.05).While the side-effective rate regroup A (3.3%)was significantly lower than that in group B(22.5%)(P＜0.05).Conclusions After re- section of the multiple colorectal adenomas,both the selective inhibitor of COX-2,celeeoxib and the non- selective inhibitor of COX-2,aspirin,may reduce its recurrence rate,but the former has a good tolerance and lower side-effects.

Castleman's disease (CD) is a rare lymphoproliferative disorder. The etiology of CD may involve viral infection, abnormal modulation of cytokines, and angiogenesis. Human herpes virus (HHV) -8 infection and interleukin-6 (IL-6) overexpression may play key roles in the development of CD. Treatment options include surgical excision, radiation therapy, chemotherapy, antiviral therapy, and targeted therapy. No standardized treatment has been established for multicentric CD and the treatment efficacy usually is poor. Among newly available agents, the effectiveness of antiviral therapy against HHV-8 is unclear; anti-CD20 and anti-IL-6 receptor monoclonal antibodies have shown promising efficacy; thalidomide and bortezomib have shown their initial efficacy.
Castleman Disease ; etiology ; metabolism ; therapy ; Herpesvirus 8, Human ; Humans ; Interleukin-6 ; metabolism

Objective To investigate CT findings,of the non-epithelial benign tumors of the larynx and their value in diagnosis and treatment.Methods Thirty-nine patients with non-epithelial benign tumors of larynx were examined with CT before treatment.Results Twenty-two cases with hemangioma displayed phebolithes in 9 cases,plain CT in 8 cases showed isodensity with respect to muscle near them and enhanced CT in 14 cases showed moderate to marked enhancement(9 cases)and no contrast enhancement(5 cases). Among 6 cases of neurogenic tumor,neurilemmoma(5 cases)presented as low to intermediate density on plain CT scan(1 case)and enhancement with homogeneous or inhomogeneous after enhanced CT,another case of neurofibroma presented as low density with homogeneous on plain CT imaging.Chondroma(3 cases) showed enhancement with inhomogeneous on enhanced CT scan.Pleomophic adenoma(3 cases)showed moderate to marked enhancement and one of the three cases presented as marked cystic degeneration. Lipoma(2 cases)demonstrated low density with no contrast enhancement.Lymphangioma,leiomyoma and fibroma(each has 1 case)displayed no contrast enhancement(lymphangioma)and moderate to marked enhancement(leiomyoma and fibroma)on enhanced CT scans.Conclusion CT can definitely display the shape,range and density of the tumors in larynx and provide information for diagnosis and treatment.

Objective To explore the related diseases,main causes and clinical features of children with basal ganglia calcification(BGC).Methods Thirty cases with BGC detected by CT were studied retorspectively,and its clinical symptoms and image were summarized.Results Many factors and diseases were related to BGC,such as hypothyroidism,intrauterine infection,intrauterine hypoxia,epilepsy,posttraumatic cerebral lacunar infarction.Main clinical manifestations of BGC in children were twich,mental retardation,disorders of limb movements etc.The CT scan showed localized punctuate calcification in basal ganglia.Conclusions The main causes of BGC in children are hypothyroidism,intrauterine infection and intrauterine hypoxia,and the clinical manifestations are diverse.For children with CT-detected BGC should diagnose its causes;and for unknown causes cases should strengthen follow-up.