To examine the epidemiology and clinical characteristics of small-bowel cancer. Design: Patients with small-bowel tumors reported between 1980 and 2000, studied retrospectively. Setting: Data from the Connecticut Tumor Registry. Patients: One thousand sixty small-bowel cancer cases: 628 men (49.84%) and 632 women (50.16%). Mean age at presentation was 65.2 years. Results: The most common location of small-bowel tumors was the ileum (374 cases; 29.7%), followed by the duodenum (320 cases; 25.4%) and the jejunum (193 cases; 15.3%). In 367 patient cases (29.1%: 192 men [30.6%] and 175 women [27.7%]), a prior or subsequent tumor of the gastrointestinal tract was reported. The most prevalent histologic type was carcinoid (417 cases; 33%), followed by adenocarcinoma (341 cases; 27%) and lymphoma (205 cases; 16.3%). The patient population was predominantly white (1159 patients; 92%), followed by African American patients (91 patients; 7.2%). Stratification by consecutive 7-year intervals showed the fol

No abstract

No abstract

The 170 and 13C esr hyperfine splitting constants have been measured for the hydroquinone (HQ+) cation radical. For naturally occurring 13C, three splitting constants were observed and were assigned magnitudes and signs of +4.23, -1.65, and -1.20 G; for an enriched 170 sample a splitting constant of -7.83 G was assigned. These values have been compared with similar results for the p-benzosemiquinone (PBSQ' ~) anion radical. Evaluation of the spin density distributions from the available data shows that within the series PSBQ' -

The case records of the Connecticut Tumor Registry were reviewed from 1952-1982. There were 37 cases of adenoid cystic carcinoma of the breast (ACC) from a total of 40,350 invasive breast tumors. Patient survival, complications, and pathologic sections were reviewed. Only 14 of 27 surgical pathology slides available for review could be confirmed histologically as ACC. All patients were white females with a mean age of 64 years. The tumor remained localized to the breast in all cases. Nine patients had either radical or modified radical mastectomy, four patients had either simple mastectomy or lumpectomy, and one patient refused treatment. There was no evidence of axillary node involvement, metastases, or local recurrence after excision. At the time of follow-up, nine patients were alive and disease free and four died of disease unrelated to their breast cancer. The one patient who died of breast cancer had a radical mastectomy and survived 11.7 years after diagnosis. It is concluded that ACC has a favorable biologic behavior characterized by a prolonged clinical course and good prognosis. Simple mastectomy is all that is required as initial treatment, and a chest x-ray and thorough physical examination looking for local recurrence is all that is needed for follow-up.