Biomedical subjects
Publications and source records attributed to J Perez Villanueva.
A study of 46 osteoblastomas and 91 osteoid osteomas, selected from a total of 162 cases proceeding from 15 Spanish Hospitals was done to establish epidemiological data on clinico-pathological parameters and to compare them with the findings of other authors. A comparative study between both tumors is done and emphasis is put on the discussion of aggressive osteoblastoma.
Twenty-four patients with previously untreated T1 transitional cell carcinoma of the bladder were treated with oral methotrexate 50 mg weekly for 18 months. Thirteen developed tumour recurrences (recurrence index 11 per 100 patient months at risk) and in one-third of the patients treatment was stopped because of unwanted side effects. These results are no better than our previous experience with intravesical Adriamycin, thiotepa or cisplatin.
A case of mesoblastic nephroma in an infant with a 3-year, disease-free, postoperative survival period is reported. The histological aspects, with emphasis on differential diagnosis from Wilm's tumour are described.