Human fetal esophageal epithelial tissue were cultured in vitro and treatedwith mycotoxins of Alternaria alternata (AME or AOH) for 4 h. The genomic DNAwere extracted from these tissues. Genomic DNA was isolated from normal human fetalesophageal epithelium (as blank control), DNA from malignant tissue and its adjacentnormal mucosa was obtained from esophagectomy patients. DNA was amplified with PCRreaction, using genomic DNA as templet. The PCR products was a 104bp fragment from which the 12 codon of c-Ha-ras gene was contained. The excition point of restriction en-zyme Hpe Ⅱ was located in this fragment. The PCR amplified 104bp fragment was diges-ted by Hpa Ⅱ and analysed by agarose gel electrophoresis. The results showed that the104bp fragment amplified from genomic DNA of blank control and esophagectomy patientcould be digested by Hpa Ⅱ ; but that from genomic DNA of human fetal esophagealepithelium treated by AME or AOH could not. These results indicated that a mutationhad taken place at 12-codon of c-Ha-ras gene after it was treated by AME, AOH for ashort time. The mutation of Ha-ras gene might be the early event during esophageal car-cinogenesis. The effect of AME and AOH during the onset of esophageal cancer and themolecular machanisms of the effect were worth of further study.

Extramedullary plasmacytoma (EMP) is a rare tumor characterized by proliferation of monoclonal plasma cells,often occurs in the head and neck,followed by gastrointestinal and skin.Diagnosis is based on biopsy,which is the only accurate and reliable method.EMP is needed to discriminate with similar diseases.Radiotherapy is the preferred treatment method of EMP,because it has a higher radiation sensitivity.Sometime we can choose comprehensive treatment because of illness need.Hematopoietic stem cell transplantation is not as the preferred treatment option because of transplant rejection.

Adult ; Aspergillosis ; pathology ; surgery ; Female ; Humans ; Laryngeal Diseases ; microbiology ; pathology ; surgery ; Middle Aged ; Vocal Cords ; pathology

Objective Cavernous hemangioma of infant was reported as an obscure diagnosis with the different sensitivity to corticosteroid therapy and various natural courses. Therefore, a clinical studies for the biological classification of deep subcutanious vascular lesions might be needed, which was alluded by Mulliken two decades ago. Methods Infants with cavernous hemangiomas accepted normal system corticosteroid therapy during the first 6 months of life before eight-year-follow-up, which continued until the children were 9 to 10 years old. The expression of PCNA and bFGF, and cellular histological characteristics were observed in 12 cases by biopsy. Results There were two major categories of subcutaneous vascular lesions groups: deep capillary hemangiomas, a lesion regressing slowly, and venous malformation, a lesion growing commensurated with the child. They will be also distinguished on the basis of diverse final treatment results, expression of cellular markers, microscopical characteristics, and physical signs. Conclusion The new classification appears to be helpful to make the choice of therapy for infants with "cavernous hemangiomas" , which is proven to be a terminologic confusion.

Adrenal Gland Diseases ; diagnosis ; pathology ; therapy ; Female ; Hemorrhage ; diagnosis ; pathology ; therapy ; Humans ; Infant, Newborn ; Magnetic Resonance Imaging ; Male ; Prognosis ; Tomography, X-Ray Computed

Humans ; Oral Surgical Procedures ; education ; methods ; Surgery, Oral ; education ; manpower ; trends

Adult ; Chondrosarcoma ; Female ; Humans ; Middle Aged ; Paranasal Sinus Neoplasms ; Skull Base Neoplasms ; Sphenoid Sinus

Adult ; Female ; Humans ; Myocardial Infarction ; complications ; Pregnancy ; Pregnancy Complications, Cardiovascular

Adult ; Aged ; Breast Neoplasms ; blood ; pathology ; Carcinoembryonic Antigen ; blood ; genetics ; Carcinoma, Ductal, Breast ; blood ; secondary ; Female ; Fibroadenoma ; blood ; Fibrocystic Breast Disease ; blood ; Humans ; Lymphatic Metastasis ; Middle Aged ; Neoplasm Staging ; RNA, Messenger ; blood ; genetics

Female ; Humans ; Hydrocarbons, Chlorinated ; poisoning ; Male ; Middle Aged ; Occupational Diseases