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The significance of multiple, recurrent, and "complex" cardiac myxomas.

We reviewed the Mayo Clinic records of 56 patients who underwent operation for cardiac myxoma and 29 cases in which cardiac myxoma was found at autopsy. Five patients had a "complex" of unusual findings including multiple pigmented skin lesions (lentiginosis), myxoid fibroadenomas of the breast, skin myxomas, and primary pigmented nodular adrenocortical disease (a cause of Cushing's syndrome). Four of these five patients had multiple cardiac myxomas. Three of the four patients who underwent surgical excision of the cardiac myxomas had recurrent myxomas (the only recurrences in our series), and one of these patients had a second recurrence. The occurrence of multiple and recurrent myxomas in patients with the complex was significantly (p less than 0.001) higher than in our 80 patients with sporadic myxomas. The world literature was searched for cases of cardiac myxomas with the unusual associations of the complex, and also for familial, multiple, and recurrent myxomas. A group of patients were identified who had unusual biologic behavior including early development of myxomas, atypical myxoma locations, and a high risk for the development of recurrent myxomas. For these patients, we recommend a thorough search for multiple tumors at operation, close postoperative follow-up, and careful screening of family members.

Adenofibroma↗

[Importance of the systematic cytologic examination of breast secretions: 60 cancers diagnosed in 2120 discharges examined].

The systematic collection of breast secretions by manual expression of the breast and nipple in 2 120 patients examined for breast diseases has led to the following results: 529 (25%) disclose epithelial papillary hyperplasia, 136 of which underwent surgical control. Epithelial hyperplasia without cellular atypias was found in 9 fibroadenomas, 42 fibrocystic diseases, 29 papilloma/papillomatosis and 21 cancers. Atypical or malignant hyperplasia was observed in 42 cases. Out of 60 cancers, thus investigated, 31 (51%) had malignant cells in such induced nipple discharge, 8 (13%) atypical cells and 21 (35%) concomitant papillary hyperplasia. Systematic cytological examination of breast secretion allows to control intraductal epithelial hyperplasia and to eventually disclose malignant tumor.

Adenofibroma↗

Benign disorders of the breast in older women.

Five hundred and eighty-one women over the age of 55 years with a benign disorder of the breast have been studied out of a total of 4,379 consecutive consultations for a perceived mammary problem. The relative age specific incidence of benign disorders of the breast dropped dramatically after menopause. Eighty per cent of older patients seen with these phenomena were between 55 and 69 years of age. Older women with benign disorders of the breast were more likely to have had a previous benign finding at biopsy or aspiration than younger patients. The use of hormonal supplements in these women was no different than that believed to occur in the regular population, except in the patients with cysts of the breast. The most common complaint was nodularity with or without pain. Cysts and fibroadenomas were proportionately much less common than in younger women and one-half of the patients who had cysts were taking hormonal supplements. In women more than 55 years of age, papillomas of the duct are responsible for approximately one-third of the nipple discharges, although the most common cause is ectasia of the duct. The postmenopausal involution makes the breast much easier to examine, both clinically and roentgenographically so that diagnosis of benign disorders can be made with reasonable confidence. Cysts can be safely aspirated because cystic carcinomas which do occur in this age group can be fairly easily recognized by gross clinical features.

Adenofibroma↗

Relationship of monoclonal antibody binding to estrogen and progesterone receptor content in breast cancer.

Three monoclonal antibodies--H59, H71, and H72--which react with human breast cancers have been developed using the estrogen-dependent human breast cancer cell line, ZR-75-1, as the immunogen. H59 bound only to estrogen receptor-positive, estrogen-regulated breast cancer cells in culture, whereas H71 and H72 bound breast cancer cells irrespective of the estrogen receptor content. All three antibodies have minimal cross-reactivity with non-breast tissue culture cell lines. The three antigens appear to be glycoproteins located on the cell surface. H59 and H72 antigens bound preferentially to the apical surface of duct cells and may be secreted; H71 antigen demonstrated no evidence of an apical orientation or secretion. The binding of the antibodies to fixed cryosections from 152 breast cancer and 111 benign breast disease specimens has been evaluated using a radioimmunoassay. Eighty-five % of breast cancer and almost 100% of benign disease specimens were bound by at least one antibody. H59 bound 39%, H71 bound 51%, and H72 bound 65% of cancer specimens. Estrogen receptor and progesterone receptor analyses were obtained on 141 specimens. H59 bound almost exclusively to tumor specimens which contained estrogen and/or progesterone receptor, but not to all receptor-positive tumors. Therefore, the H59 antigen appeared to be present on a subset of estrogen receptor-positive tumors. Considering that it bound only to estrogen-regulated cells in culture, the antigen may be estrogen regulated, and its presence may predict a response to hormone therapy. H71 and H72 recognized cell surface differentiation antigens but bound tumor specimens regardless of the receptor content. These antibodies may be useful as independent variables for predicting response to therapy and prognosis of patients with breast cancer.

Adenofibroma↗

[Steroid hormone receptors in malignant mammary gland tumors in dogs].

The content of estrogen (ER) and progesteron receptors (PR) were studied as related to histological type, the degree of malignancy and growth rate of spontaneous canine mammary carcinomas. No correlation was found between the ER and PR amount, histological type and degree of malignancy. Inverse correlation was detected between ER and PR and the growth rate. These results correspond to those obtained for human mammary tumours. Therefore canine mammary carcinomas can be considered as an adequate model for experimental therapy of this type of tumours.

Adenocarcinoma↗

[A case report of tubular adenoma of the breast].

Pure adenoma of the breast was seen in a 34-year-old Japanese woman. On examination, there was a firm, movable, nontender mass, 2.0 cm in diameter, in the upper outer quadrant of the left breast. The xeromammographic and macroscopical diagnosis was fibroadenoma. Histological examination, however, identified pure tubular adenoma of the breast. This was reported herein because of its extreme rarity.

Adenofibroma↗

Inhibition of mammary cancer by retinyl methyl ether.

Daily feeding of the synthetic retinoid, retinyl methyl ether, beginning one week after the oral administration of 7,12-dimethylbenz(a)anthracene to female Sprague-Dawley rats, inhibited the incidence of mammary cancer and diminished the number of mammary tumors, both malignant and benign, caused by 7,12-dimethylbenz(a)anthracene. Retinyl methyl ether also markedly increased the latent period for appearance of mammary cancers. Retinyl methyl ether caused no evident toxicity and did not affect weight gain in these experiments. This synthetic retinoid was superior to the natural retinoid, retinyl acetate, for inhibition of mammary carcinogenesis.

9,10-Dimethyl-1,2-benzanthracene↗

Breast lobular carcinoma in a fibroadenoma.

Lobular carcinoma arising in a fibroadenoma is a rare occurrence. A case is reported and literature is reviewed. Carcinomas developing in fibroadenomas are not intrinsically different from those not related to fibroadenomas. Prognosis and treatment are the same as for carcinomas of the same type arising outside and independently of fibroadenomas.

Adenofibroma↗

Automated microscope image analysis in the cytological tumor diagnostics. Results on borderline-cases of mammary tumors.

50 fine-needle biopsies of mammary tumors (20 medullary carcinomas, 20 fibroadenomas, and 10 false negative judged cases) were studied by automated microscopic image analysis. Eight morphometric and densitometric features of the tumor cell nuclei were determined on Papanicolaou stained smears. It was analyzed whether smears false judged as negative can be rightly allocated as carcinomas by the automated method. The results of this study have shown that it was possible by means of three cell nucleus parameters (standard deviation of the area, mean area ratio, and skewness of the grey value gradient at contours) with 100% correct separation of the unequivocal cytologies into malignant and benign smears to recognize about 90% of the false judged smears rightly as carcinomas. The results are reproducible and can be obtained in a time of 2-5 min per smear. The first results show that the automated microscope image analysis may be a valuable tool in the diagnosis of borderline-cases of mammary tumors.

Adenofibroma↗

[Antigens common to Mycobacterium bovis (BTsZh) and several malignant and normal tissues of laboratory animals].

Agglutination, gel precipitation and immunoelectrophoresis tests demonstrated the presence of antigens common for the Mycobacterium bovis (BCG) and some malignant and normal rat tissue cells. The method of absorption of immune sera in the agglutination test showed that this antigen was specific for the BCG microorganisms and cells of primary induced tumours of rat muscle tissue. This antigen had the electrophoretic mobility in the beta-globulin zone.

Adenofibroma↗

Short-term tamoxifen treatment in benign breast diseases.

Fifty woman patients with adenoma or fibroadenoma, cystic, simple or complex dysplasias were treated with tamoxifen in daily doses of 20 mg. (2 tbs.) for 10 or 20 days during one or two menstrual cycles (in most cases 2 successive treatments) and uninterrupted for 30 or 90 days in menopaused women. A response was recorded in the main and associated lesions as well as in several similar lesions in the same case, and therefore, the results are analysed according to the lesion surface reduction in percentage. The different responses recorded can explain why the classification into responders and non-responders is difficult to make sometimes. 64% of the cases responded to the treatment. The results are most relevant if lesions are summed up and considered by type of lesion. Subjective symptoms disappeared or improved in 97% for mastodynia and 100% for dysmenorrhoea with a general decrease in menstrual bleeding. Short-term treatment of two tamoxifen cycles can be a means to select the responsive cases. They may be a preliminary stage before further endocrine treatment or before further surgery. This medicating pattern can solve some cases otherwise fit for surgery only.

Adenofibroma↗