Natural history and treatment outcome of radiotherapy for Kimura抯 disease

Background: Kimura抯 disease is a rare inflammatory disease that usually appears in head and neck region. We reported natural history of the disease and treatment outcome of radiotherapy (RT) in Chiang Mai University Hospital. Methods: A retrospective review was performed for all Kimura抯 disease patients treated with radiotherapy at our center between 2002 and 2017. Results: A total of 20 patients with Kimura抯 disease were reviewed. There were 14 men and 6 women. All patients presented with the mass in head and neck region. Eleven patients were treated with a definitive intent with RT, 9 patients were treated with RT after recurrence from other modalities. All patients were treated with local external beam RT with 2 Gy per fraction to a median total dose of 30 Gy (range 30�). The median follow-up time was 4 years (range 1�.5 years). One patient died from HIV opportunistic infection after 1.5 year of radiation with complete response of Kimura抯 disease. Most of the patients responded to radiotherapy and controlled the disease at the time of analysis. Two patients had multiple recurrences at new areas outside radiotherapy field. Skin toxicity grade 1 was the most common late side effect which was found in 8 (44%) patients. We did not find severe late toxicity or second malignancy in this patient cohort. Conclusion: Good local control of Kimura抯 disease can be achieved, with a radiation dose of 30� Gy, with insignificant late toxicities. We suggest that radi

Radiotherapy in Kimura's disease: a report of eight cases.

Kimura's disease is a rare condition of chronic inflammatory disorder affecting the skin and subcutaneous tissue. It is predominantly in the head and neck region. The lesion is benign but may be persistent/ recurrent and difficult to eradicate. Several forms of treatment have been used, including surgical excision, intralesional and oral corticosteroid, cryotherapy and radiotherapy. The authors report eight cases with histopathology consistent with Kimura s disease who received radiation therapy as a primary treatment or secondary treatment for recurrence after surgical excision in the Division of Therapeutic Radiology and Oncology, Chiang Mai University. The prescribed radiation doses varied from 30-40 Gy. With the mean follow-up time of 21 months, all eight patients were still free from disease at the time of analysis.

Spectrum of bone tumors in Chiang Mai University Hospital, Thailand according to WHO classification 2002: A study of 1,001 cases.

OBJECTIVE: The aim of the present study was to determine the spectrum, frequency and demographics of bone tumors. MATERIAL AND METHOD: A retrospective study of the 1,001 bone tumor specimens from the files at the Pathology Department of the Chiang Mai University Hospital, Thailand from 2000 to 2004. RESULTS: From the study, 41 were non-neoplastic mass lesions, and 960 were neoplastic, with 856 (89%) as primary and 104 (11%) as metastatic tumors. In the primary tumor group, 654 (76%) cases were of hematologic origin, and 202 (24%) were non-hematologic. The most common benign bone tumors were giant cell tumor (n = 37), osteochondroma (n = 25), and chondroma (n = 15). The most common malignant bone tumors were lymphoma-leukemia (n = 583), metastatic malignancy (n = 104), plasma cell myeloma (n = 71), and osteosarcoma (n = 58). CONCLUSION: The present study showed a higher frequency of osteosarcoma (68%), lower frequencies of chondrosarcoma (12%) and Ewing sarcoma (4%) among primary non-hematologic malignant bone tumors when compared with similar studies based on Western patients. Whether these differences reflect differences in the ethnic population or in practice patterns remains to be determined

Cytological diagnosis of lung cancer in Chiang Mai, Thailand: cyto-histological correlation and comparison of sensitivity of various methods.

To evaluate the role of cytology of sputum, bronchial brushing (BB), bronchial washing (BW), bronchoalveolar lavage (BAL) and fine needle aspiration cytology (FNA) in the diagnosis of lung cancer using histological material as a gold standard, a retrospective study was performed on cytological materials obtained from 243 patients with possible lung cancer. Of these, 160 had been confirmed histologically to have lung cancer. Cytological materials included in the study were 31 sputa, 123 BWs, 11 BBs and 36 BALs. Meanwhile, FNAs and concurrent gun biopsies (GBs) were performed on 23 patients clinically and histologically proved to have lung cancer. The overall sensitivity of sputum, BW and BAL was 0.222, 0.455 and 0.361, respectively. BB provided a significantly far superior sensitivity (0.800) than those of three former methods with p<0.05 by Fisher's exact test. FNA and GB seemed to provide greater sensitivity of 0.913 and 0.783, respectively. Although the complimentary role of various conventional cytological techniques is well recognized, bronchial brushing is the only single technique that significantly improved diagnostic yield. FNA and GB techniques should be encouraged due to their superior sensitivity.