In the present work, we examine normal and malignant stage IIIB cervical tissue by laser induced fluorescence, with 2 different objectives. (i) Development of the fluorescence spectroscopy technique as a standard optical method for discrimination of normal and malignant tissue samples and, (ii) Optimization of the technique by the method of matching of a sample spectrum with calibration sets of spectra of pathologically certified samples. Laserinduced fluorescence spectra were measured using samples from 62 subjects at different excitation wavelengths. Principal component analysis (PCA) of spectra and intensity ratios of curveresolved fluorescence peaks were tested for discrimination. It was found that PCA of total fluorescence at 325 nm excitation gives specificity and sensitivity over 95%. Use of calibration sets of spectra of histo-pathologically certified samples combined with PCA for matching and pass/fail classification of test samples is shown to have high sensitivity/specificity for routine diagnostic purposes as well as for possible staging of the disease. Further, the multi-component origin of the fluorescence spectra is illustrated by curve resolution and fluorescence spectra of separated proteins of tissue homogenates. ' 2006 Wiley-Liss, Inc.
Key words: laser induced fluorescence; optical diagnosis; principal component analysisCervical Cancer is the second leading cancer in females all over the world, standing first in many of the developing countries.1,2 Most patients are diagnosed with cervical cancer through symptoms such as abnormal vaginal bleeding and vaginal discharge. Investigation by Pap smear/colposcopy followed by histopathology confirms the diagnosis. Pap smear is reported to have high false negative (15-40%) rates. 3,4 The extraordinary monotony of the work, large volume of smears in screening applications, inadequate sampling and comparatively smaller cellular changes being overlooked because of fatigue are all reasons ascribed to the high rate of false-negative results. At present, liquid based cytological screening technique ''Thin prep'' aided by Pap Net, an automated computer based visualization technique, seems to have increased the sensitivity of cytological screening. However, the efficiency of thin prep and Pap net are still under scrutiny. 5,6
Objective To audit glove perforations at laparotomies for gynaecological cancers.Setting Gynaecological oncology unit, cancer centre, London.Design Prospective audit.Sample Twenty-nine laparotomies for gynaecological cancers over 3 months.Methods Gloves used during laparotomies for gynaecological cancer were tested for perforations by the air inflation and water immersion technique. Parameters recorded were: type of procedure, localisation of perforation, type of gloves, seniority of surgeon, operation time and awareness of perforations.Main outcome measure Glove perforation rate.Results Perforations were found in gloves from 27/29 (93%) laparotomies. The perforation rate was 61/462 (13%) per glove. The perforation rate was three times higher when the duration of surgery was more than 5 hours. The perforation rate was 63% for primary surgeons, 54.5% for first assistant, 4.7% for second assistant and 40.5% for scrub nurses. Clinical fellows were at highest risk of injury (94%). Two-thirds of perforations were on the index finger or thumb. The glove on the nondominant hand had perforations in 54% of cases. In 50% of cases, the participants were not aware of the perforations. There were less inner glove perforations in double gloves compared with single gloves (5/139 versus 26/154; P = 0.0004, OR = 5.4, 95% CI 1.9-16.7). The indicator glove system failed to identify holes in 44% of cases.Conclusions Glove perforations were found in most (93%) laparotomies for gynaecological malignancies. They are most common among clinical fellows, are often unnoticed and often not detected by the indicator glove system.
Botryoid rhabdomyosarcoma is an aggressive malignancy that arises from embryonal rhabdomyoblasts. It is commonly seen in the genital tract of female infants and young children. Due to the young age of affected patients, this malignancy poses a management challenge as the preservation of hormonal, sexual and reproductive function is essential. There is currently no consensus regarding management. However, treatment strategies for these tumours have evolved from radical exenterative surgeries to more conservative management options. We report a case of botryoid rhabdomyosarcoma in an adolescent girl presenting to Kasturba Hospital, in Manipal, India, in August 2007 with botryoid rhabdomyosarcoma of the cervix. She was treated with surgery and adjuvant chemotherapy. The patient remained healthy until eight months after the surgery. After acquiring a varicella zoster virus infection, she died due to septic shock and multiple organ failure. Awareness of such an uncommon lesion and its clinical implications is important to avoid misdiagnosis.
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