The issues of X-ray diagnostics of osteoblastoclastomas have been repeatedly discussed in the literature. The most characteristic radiological symptoms of this one of the most frequent bone tumors are described in detail [i2, 4]. Our long-term observations show that radiologists experience differential diagnostic difficulties in interpreting radiographs of patients with osteoblastoclastoma. The conclusion about the presence of osteoblastoclastoma is often erroneous. This prompted us to focus on the issues of differential diagnosis of osteoblastoclastomas.

Primary tracheal cancers account for 0.1-0.2% of the number of all malignant neoplasms, which was established by I.V. Davydovsky (1940). Cancer accounts for half of all tracheal tumors. The age of patients varies widely, but persons over 40 years of age prevail.

Radiologic and functional examinations of the pineal gland state and changes of bones of the vault and base of the skull are performed in 114 women (galactorrhea-amenorrhea syndrome is revealed in 32 women, syndrome of sclcropolycystosis of ovaries in 61 women, control group consists of 21 women). The data on melatonin excretion, calcification frequency of the pineal gland in different syndromes, signs of endocrinopathy, cndocraniosis, intracranial hypertension in the observed persons of all groups are given. It is suggested that the retardation of calcification of the pineal gland is connected with humoral and hormonal status disorder.

October 26, 1997 will be 70 years from the date of birth and 45 years of scientific and pedagogical activity of an honorary member of the All-Russian Scientific Medical Society of Radiologists and Radiologists, Honored Scientist of the Republic of Tatarstan, Doctor of Medicine, Professor Galina Ivanovna Volodina.

As many as 681 patients with syndromes of scleropolycystosis of ovaries, amenorrhea, galactorrhea, oligonorrhea, lutein phase deficiency, climacteric, hypothalamic genesis obesity and sterility, precancer and cancer of endometrium, and body of the womb are observed. Calcium metabolism is examined in some patients. The frequency of the changes of bones of the vault and base of the skull in the above mentioned states (signs of endocraniosis, en docrinopathy, intracranial hypertension as well as calcification of the pineal gland) is given,, It is stated that patients with ncuroendocrii. Syndromes manifest phosphoric-calcium metabolism violation and structural changes of bones of the skull.