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Biomedical subjects

T Onitsuka

Publications and source records attributed to T Onitsuka.

At least 145 records · Page 8Linked to original sources
PubMed1986

Primary malignant thymoma in a 6-year-old boy.

Although not uncommon in adults, thymomas are the least common mediastinal tumors in children. The behavior of these tumors in children is partially distinct with a much more rapid course and a poor prognosis. A symptom-free 6-year-old boy was treated for malignant thymoma detected incidentally on a chest X-ray in a school mass examination. At operation, the tumor was found to have already invaded the surrounding tissue. Complete removal at the base of the invasive tumor is the treatment of choice.

Child↗
PubMed1986

Primary liposarcoma of the mediastinum--a case report and review of the literature.

Liposarcoma of the mediastinum is a rare disease. A 59 year old woman was seen with the complaint of dizziness. A chest radiogram taken during the course of investigation for hypertension revealed a large mass shadow 24 X 18.5 X 12 cm located in the anterior mediastinum. The tumor of the mediastinum was diagnosed as a benign lipoma when it was first resected, but subsequently proved to be a liposarcoma when it re-appeared 2 years and 10 month later. Based on the WHO classification, the mixed type of liposarcoma was diagnosed. The salient and pathological features of mediastinal liposarcoma are reviewed and compared with those nine cases reported in Japan and fifty in North America and European countries. Treatment by simple enucleation or shelling out of the tumor should be discouraged, since this seems to be the main cause of local recurrence. Surgical wide en bloc excision is the treatment of choice.

Female↗
PubMed1986

[Ischemic colitis after surgery of abdominal aortic aneurysm].

Ischemic colitis following aortic reconstruction for abdominal aortic aneurysm was discussed. The low morbidity rate of postoperative abdominal symptom was recognized significantly when meandering mesenteric artery (MMA) was shown clearly in angiography before surgery. When inferior mesenteric artery (IMA) was patent before surgery, furthermore when IMA was not reconstructed, it is necessary for preventing postoperative ischemic colitis that mean IMA/systemic pressure ratio is above 0.5 or 0.6.

Aged↗