Atsuo Tsuchiya

Learn More
Background. Despite curative resection of the primary tumor with extensive dissection of lymph nodes, some patients with node-negative gastric cancer die of local relapse or metastatic disease. Microinvolvement of regional lymph nodes may play an important role in the prognosis. Methods. To evaluate the incidence and prognostic implications of regional(More)
A multivariate analysis was conducted on the survival data of 180 patients who underwent curative resection for differentiated thyroid cancer between 1966 and 1987, and the 10- and 20-year survival rates were found to be 80.6% and 73.1%, respectively. A survival analysis was also performed, testing the following factors: the patient's age at the time of(More)
A malignant rhabdoid tumor of the colon is very rare and only three cases have been previously described. A 76-year-old man was admitted to the hospital complaining of epigastralgia. An elastic mass was palpable in the right upper abdomen. A barium enema and endoscopic examination showed a giant gyrate tumor arising from the cecum. Abdominal ultrasonography(More)
The inhibitory action of prostaglandin D2 (PGD2) and its effect on the cell cycle were examined in cell lines SW480 and LS174T of human colon cancer. The growth of the cell lines were assessed 24h and 48h after the addition of 1.0μg/ml and 10.0μg/ml PGD2. The growth of SW480 cells and 24h and 48h after the addition of 10.0μ/ml, while that of LS174T was(More)
Adenoid cystic carcinoma of the breast is an uncommon form of cancer, and only a few articles have described the cytological findings of this disease. We report herein the case of a 48-year-old woman who presented with a breast mass beneath the nipple, the aspirate from which consisted of globules of mucous balls surrounded by epithelial cells with scant(More)
Venous invasion as a prognostic factor was evaluated in 124 patients with colorectal cancer. By classifying the patients as having either negative to mild invasion or moderate to marked invasion, a significant correlation was found between the degree of venous invasion and clinicopathological variables such as lymphatic invasion, lymph node metastasis,(More)
The relationship of estrogen receptor(ER) status to DNA ploidy was investigated in 121 patients with breast cancer who underwent surgery. Lymph node status was evaluated histologically and ER levels were determined by the dextran-coated charcoal method, with a level of 3 fmol/mg·protein being considered positive. Flow cytometric DNA content was analyzed(More)
We report herein three cases of brain metastasis from primary colorectal cancer in which the metastatic lesion was resected to effectively relieve neurological symptoms. Case 1 was a 61-year-old woman with a solitary brain metastasis from colorectal cancer and no other metastases; case 2 was a 59-year-old woman who died from liver metastasis 11 months after(More)
The effect of age on the prognosis of breast cancer remains controversial. To investigate the role of age, we reviewed 316 patients with stage I or 1I breast cancer. There were 14 patients below 34, 146 between 35 and 49, 115 between 50 and 65, and 41 over 66 years of age. No correlations were observed between age and clinicopathological variables. Breast(More)
Adenoendocrine cell carcinoma of the gallbladder is an uncommon form of cancer. We treated a 36-year-old woman who came to us with a chief complaint of abdominal pain. The abnormality was diagnosed to be a tumor-like mass in the gallbladder, and adenomyomatosis of the gallbladder was strongly suspected. A laparoscopic cholecystectomy was successfully(More)