Clinicopathologic analysis of matched primary and recurrent endometrial carcinoma.

It is unknown whether the type and grade of a primary endometrial carcinoma is reliably maintained in recurrence. All matched primary and recurrent endometrial carcinomas diagnosed from 2000 to 2010 at our institution were identified; 34 cases had available slides. Histologic classification was performed using modifications to the World Health Organization criteria.

"Low-grade leiomyosarcoma" and late-recurring smooth muscle tumors of the uterus: a heterogenous collection of frequently misdiagnosed tumors associated with an overall favorable prognosis relative to conventional uterine leiomyosarcomas.

In most instances, uterine smooth muscle tumors (USMTs) are readily diagnosed as either benign or malignant. Rare patients whose smooth muscle tumors fail to meet leiomyosarcoma (LMS) diagnostic criteria will experience recurrence, and occasional cases of LMS patients experience a protracted clinical disease course. The aim of this study was to investigate whether "low-grade uterine LMS" can be defined as a clinicopathological entity and to learn which histologic features of USMTs correlate with indolent prognosis.

Light controllable tuning and switching of lasing in chiral liquid crystals.

A new approach based on the use of cholesteric liquid crystals (CLCs) and dye-doped light-sensitive chiral dopants was employed to create lasing materials with reversible tuning and switching. The lasing wavelength of optically-pumped dye-doped cholesteric liquid crystals (CLCs) is shifted by irradiation with UV light. The shift depends on the UV light exposure.