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Biomedical subjects

M Somma

Publications and source records attributed to M Somma.

At least 37 records · Page 2Linked to original sources
PubMed1981

[Prolactinoma in the male. Preoperative evaluation of 40 patients].

Forty male patients with a prolactinoma were studied. The majority of tumors were large. Eight (20%) were microadenomas. Loss of libido and sexual impotence, the most frequent symptoms, were found in 82,5% of cases. Gynecomastia with galactorrhea was noted in six cases. Seven patients had hypopituitarism and nine visual field defects. Prolactin levels ranged from 30 to 7,000 ng/ml. The mean baseline prolactin value was higher in the group of invasive adenomas or enclosed adenomas with a suprasellar expansion. The LH-RH test, performed on twenty-eight patients, showed an abnormal response in 80% of the cases.

Adenoma↗
PubMed1981

[Prolactinoma in the male. Therapeutic results in 40 men].

Forty male patients with a prolactinoma were operated on by the transsphenoidal approach. Postoperative normalization of PRL levels occurred in 37% of the cases, in 100% of the microadenomas and 68% of the adenomas with preoperative PRL levels below 700 ng/ml. None of the invasive tumors were normalized. Partial hormonal deficits were produced by surgery in three cases and panhypopituitarism in one case.

Adenoma↗
PubMed1980

ACTH-secreting medullary carcinoma of the thyroid: monitoring of clinical course with calcitonin and cortisol assays and immunohistochemical studies.

The clinical course of a patient with Cushing's syndrome secondary to metastatic medullary carcinoma of the thyroid was documented with serial calcitonin and cortisol assays and tumor immunohistochemistry studies. Cortisol levels were originally markedly elevated but returned to normal after total thyroidectomy. These levels rose again when the patient developed liver metastases but normalized during chemotherapy, never to rise again despite the appearance of cervical lymph node metastasis. Calcitonin levels remained elevated throughout the course. The original tumor was composed of two cell lines: one containing both calcitonin and ACTH and another containing only calcitonin-reacting cells. However, the cervical metastasis showed a marked decrease in both cell lines with fever than 1% of cells reacting to ACTH, and only 25% to calcitonin. The almost total disappearance of ACTH-reacting cells may have been therapeutically induced or may represent a consequence of tumor progression.

Adrenocorticotropic Hormone↗
PubMed1980

Prolactin-secreting pituitary adenomas in males: transsphenoidal microsurgical treatment.

Fifteen male patients with prolactin-secreting pituitary adenomas were studied before and after transsphenoidal microsurgical treatment. Loss of libido and sexual impotence were the most frequent symptoms, being present in 12. Visual defects were present in seven patients, gynecomastia was observed in four and galactorrhea was noted in three. Most of the tumours were large; only one was a microadenoma. Four patients were cured by the operation. In all the other patients the plasma levels of prolactin were significantly lowered and the visual defects corrected or lessened, but sexual impotence was not modified. No important deficiency of the pituitary gland was induced by the operation. The results indicate that in males loss of libido and sexual impotence are frequent and early manifestations of prolactinomas, and that transsphenoidal resection is a safe therapeutic approach.

Adenoma↗
PubMed1980

Cushing's disease: management by transsphenoidal pituitary microsurgery.

Over 15 yr, 24 patients underwent transsphenoidal pituitary surgery for Cushing's disease with a median follow-up of 12 months. Cures included 7 patients with normal sella turcicas (6 microadenomas), 6 patients with focal depressions (6 microadenomas) of the sella (grade I), and 3 patients (3 adenomas) with enlarged sellas (grade II). Three patients with sella destruction (grades III and IV), 2 with normal sellas, and 1 with focal sella depression (grade I) were not cured. Two apparent cures (microadenomas) recurred. Tumor histology revealed 19 basophilic adenomas; electron microscopy (14 tumors) and immunochemical studies (10 tumors) revealed only ACTH cells. Circadian rhythm returned in 6 cured patients. Impotence (in 2), amenorrhea (in 7), and galactorrhea (in 3) resolved in affected cured patients. The major surgical complication was hemorrhage at the operative site (3 patients). Transsphenoidal pituitary surgery is a valuable method for managing Cushing's disease in many patients.

17-Hydroxycorticosteroids↗
PubMed1977

Pituitary responses to synthetic luteinizing hormone-releasing hormone in thirty-four cases of amenorrhea or oligomenorrhea associated with galactorrhea.

Pituitary responses to 100 mcg. of luteinizing hormone-releasing hormone (LH-RH) administered subcutaneously were studied in 34 cases of amenorrhea or anovulatory oligomenorrhea associated with galactorrhea. Twenty-six patients had pituitary prolactin-secreting tumors (group I); eight patients had a normal sella turcica and remission of the syndrome either spontaneously or after thyroid replacement therapy (group 2). Follicle-stimulating hormone (FSH) and luteinizing hormone (LH) responses to LH-RH were variable in each group of patients, ranging from poor to exaggerated, and no statistically significant difference could be observed between the groups. A positive correlation was found between FSH pituitary responses and basal FSH levels (r=0.50; P less than 0.01). No positive correlation was observed between either LH responses and basal LH levels or the gonadotropin responses and plasma estradiol levels, serum prolactin concentrations, duration of amenorrhea, or size of the tumor.

Amenorrhea↗
PubMed1975

[Transsphenoidal hypophysectomy in metastasizing breast cancers. Experience from 160 cases].

160 patients suffering from advanced metastatic cancer of the breast had transsphenoidal open surgical hypophysectomy. Mortality (1,8 p.cent) and morbidity were extremely low in view of the general conditions of the patients. Immediate relief of pain due to bone metastasis was obtained in 92 p.cent of cases. Such results emphasized the important point of achieving total hypophysectomy.

Adult↗
PubMed1975

[Anaplastic epithelioma of the thyroid gland 6 years after cervical irradiation for malignant lymphoma].

Carcinoma of the thyroid gland may develop after irradiation of the cervical region. It is well documented in patients who received radiation therapy to the neck in childhood but rarely when the therapy was given in adulthood. A case of an undifferentiated carcinoma of the thyroid gland occurring in an adult 6 years after irradiation of the cervical region for a malignant lymphoma is reported. The role of irradiation and the factors related to the development of carcinoma of the thyroid gland are reviewed.

Age Factors↗