RESUMO
Connections between vitamin D and psoriasis have been a matter of interest for the past decades, with its active metabolite, 1,25(OH)2 vitamin D, being valued for antiproliferative and immunomodulatory effects. However, none of vitamin D's actions could be possible without the CYP27B1 enzyme that bio-activates this metabolite of interest. In order to see if there is any link between the enzyme expression and the disease's particularities, we conducted a preliminary study that involved 11 skin biopsies of patients with mild (n = 4) or moderate to severe psoriasis (n = 7). The cell proliferation antigen Ki67 and the CD45RO+ marker were also assessed. Compared with healthy skin, in psoriasis, it is reported that the enzyme's expression seems to be more ubiquitous, but a clear correlation between the disease's severity and the CYP27B1 expression was, to our knowledge, lacking. We found that, in patients with very mild psoriasis, the enzyme expression was observed in the epidermal stratum basale in a similar manner as in healthy skin specimens. Contrary, for higher severity scores, a divergent result was observed, with the enzyme being either variably spread in the epidermal stratum spinosum or completely absent. Unlike malignant diseases, a significant connection between CYP27B1 and Ki67 (p = 0.313) or CYP27B1 and CD45RO+ (p = 0.657) does not seem to be relevant in psoriasis.
RESUMO
Endometrial polyps (EPs) are a frequent gynecological condition. EPs often arise in the common womanly patients and are appraised to be about 25%. Advancing age, hyperestrogenism, hypertension, and Tamoxifen use are acknowledged as ordinary risk elements for the development of EP. The etiopathogenesis of EP is not accurately elucidated, but certain considerations such as diabetes mellitus, hormonal factors or arterial hypertension are considered to perform a significant contribution. The diagnosis of EPs is essentially by imaging. Transvaginal ultrasound is the primary investigation in EPs. Hysteroscopic resection is now the "gold standard" to treat to treat this disease. Hysterectomy is the definitive treatment for EPs, but it requires a judicious indication and an adequate counseling of the patient. Currently, a certain histological pattern is found in different sequences in EPs. Even if the vast majority EPs are benign, they may reach hyperplastic, with malignant alteration. The purpose of this pictorial review is the integrated approach to this type of abnormal endometrial proliferation from the perspective of natural history, diagnosis, management, morphological aspects, risk of malignancy, recurrence and last but not least, clinical outcome.
