The results of our prospective study have revealed great diversity in the treatment regimens used to manage MM in real-life practice. This diversity was linked to factors such as novel agent accessibility and evolving treatment recommendations. Our results provide insight into associated clinical benefits.

Unusual shells from the Carboniferous and Permian of Russia cannot be placed in currently accepted classes of mollusks. The author compares his material with that of recognized classes and concludes that it is so unique as to be placed in a new class Xenoconchia, within the phylum Mollusca. Members of the class are known from both older and younger rocks, but description is limited to two genera and four species, three of which are Permian. The shell of xenoconchian mollusks is tapering and closed at the apex. Steinkerns show septae are not present. Near the apex there is an interior annulation. Speculations are made about the soft parts of the animal. --E.L. Yochelson.

The main and only technique for treatment of intracranial neurenteric cysts is their resection.

Meningioma is a well fluorescent tumor, with the technique sensitivity being 94.1%. In some cases, the use of fluorescence diagnostics in surgery of meningiomas improves identification of residual tumor fragments and enables correction of a surgical approach. To assess the effect of fluorescence diagnostics on the recurrence rate and disease-free duration, further research is required.

Using the TachoComb® sponge for DM reconstruction in PCF surgery is an effective way to prevent postoperative CSF leakage, provided that the algorithm of manipulations described in the article is followed.