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Biomedical subjects

J L Lewis

Publications and source records attributed to J L Lewis.

At least 289 records · Page 16Linked to original sources

Treatment of adenocarcinoma of the endometrium at Memorial-James Ewing Hospitals, 1949-1965.

This retrospective study of patients receiving initial therapy for endometrial adenocarcinoma at Memorial-James Ewing Hospitals from 1949-1965 confirmed that the most important factor related to survival was extent of disease at presentation. Those patients with spread beyond the corpus had a much poorer prognosis regardless of method of therapy. Within Stage I, histologic grade and depth of myometrial penetration were of much greater prognostic significance than uterine size. Advanced age was associated with a higher incidence of poorly differentiated tumors. Apparently for Stage I, simple hysterectomy alone was not as effective as simple hysterectomy combined with preoperative radium or radical hysterectomy with or without node dissection. There was a 6% incidence of positive nodes when node dissection was performed in Stage I patients who had no spread of disease to the cervix confirmed at operation. Pure vaginal recurrence rate was low for all methods of therapy in Stage I. Eradication of recurrences by any means was relatively ineffective.

Adenocarcinoma↗

Monitor of chemotherapy in gestational trophoblastic neoplasm by radioimmunoassay of the beta-subunit of human chorionic gonadotropin.

Radioimmunoassays and bioassays based on the reactions of the native molecule of human chorionic gonadotropin (HCG) fail to differentiate HCG from pituitary luteinizing hormone (LH). An assay based on the beta-subunit of HCG which detects HCG exclusively has been used in our laboratory to monitor patients undergoing chemotherapy for gestational trophoblastic disease (GTD). We have been able to differentiate minimal, persisting tumor activity from normal levels of pituitary gonadotropins and have based therapy on these findings. Alternatively, treatment has been terminated when HCG is no longer detectable in the serum. Tumor activity has been detected in the beta-subunit assay at a time when biologic activity in the urine indicated remission.

Adult↗

Malignant melanoma of the vulva: A report of 44 cases.

Forty-four cases of melanoma of the vulva are reviewed. A leveling system comparable to that of Clark's (in cutaneous melanoma of nongenital origin), is described. Survival appears to be directly related to depth of invasion, with no patient with a Level II lesion succumbing to disease. Minimal therapy recommended is radical vulvectomy with bilateral inguinal-femoral node dissection.

Adolescent↗

Gestational trophoblastic neoplasms.

A review of the classification, biological behavior, clinical diagnosis, and treatment of gestational trophoblastic neoplasms is presented. The events which followed the utilization of chemotherapy as a successful means of therapy are included. Especially important has been the recent recognition that high risk patients, i.e., patients with HCG titers greater than 100,000 IU/24 hr, duration of symptoms greater than four months, and metastasis to the brain and/or liver, with metastatic trophoblastic disease can be managed successfully if treated initially with combination chemotherapy and adjuvant measures including radiation and infusional therapy. Detectable levels of human chorionic gonadotropin are necessary for diagnosis and management of patients with this disease. The lack of sensitivity of commercially available pregnancy tests and the recent ability to determine HCG by means of an antigenically different beta-subunit are discussed.

Cell Transformation, Neoplastic↗