Modeling the survival in patients with HIV by the presence of competing risks for death: sub-distribution and cause-specific hazard approach

Journal of Public Health - In the presence of competing risks, patients with human immunodeficiency viruses (HIV) experience death by various causes, including co-infection with acquired immune...     

Pernio as the presenting sign of blast crisis in acute lymphoblastic leukemia

A previously healthy 5‐year‐old girl presented with acute onset of blue toes and red spots on the nose and fingers. The striking nature of these lesions, along with the finding of submandibular lymphadenopathy, prompted further evaluation. Laboratory findings were remarkable for anemia, high transaminase levels, and high blast count. Histopathologic findings were consistent with early pernio. Further examination revealed acute B‐cell lymphoblastic leukemia. Treatment of the leukemia led to resolution of the pernio.     

The effect of ovarian cyst aspiration on IVF treatment with GnRH

Objective  

The formation of cysts during IVF treatment may negatively influence the outcome. The aim of this study is to compare conservative management versus aspiration for functional ovarian cysts before ovarian stimulation for ART.     

Basaloid folliculolymphoid hyperplasia: a distinctive finding in follicular mycosis fungoides

Follicular mycosis fungoides is an increasingly recognized subtype of mycosis fungoides. There is great variability in the clinical and histologic presentation of this variant of mycosis fungoides. Epithelial hyperplasia may occur in cutaneous lymphomas, and basaloid induction of the epidermis is a recognized phenomenon in cutaneous neoplasms. We have identified three patients with follicular mycosis fungoides with basaloid folliculolymphoid hyperplasia, a finding that has received little attention in the literature. The patients were all men with prominent follicular papules on the face. We believe that these changes are a distinctive histologic pattern of follicular mycosis fungoides. Hence, we describe the clinical-pathologic findings of basaloid folliculolymphoid hyperplasia in these three patients with follicular mycosis fungoides.     

The Influence of Ceramic Surface Treatments on the Micro-shear Bond Strength of Composite Resin to IPS Empress 2

Purpose: An increasing demand for esthetic restorations has resulted in the development of new ceramic systems, but fracture of veneering ceramics still remains the primary cause of failure. Porcelain repair frequently involves replacement with composite resin, but the bond strength between composite resin and all‐ceramic coping materials has not been studied extensively. The purpose of this study was to evaluate the influence of different ceramic surface treatments on the micro‐shear bond strength of composite resin to IPS Empress 2 coping material. Materials and Methods: Sixteen 7 × 7 × 1 mm³ lithia disilicate‐based core ceramic plates were fabricated using the lost wax technique. The plates were divided into eight groups, and eight different surface treatments were performed: (1) no treatment (NT); (2) airborne‐particle abrasion with 50‐μm alumina particles (Al); (3) acid etching with 9.6% hydrofluoric acid for 1 min (HF); (4) silane coating (S); (5) AlHF; (6) AlS; (7) HFS; and (8) AlHFS. Then, ten composite resin cylinders (0.8‐mm diameter × 0.5‐mm height) were light‐polymerized onto the ceramic plates in each group. Each specimen was subjected to a shear load at a crosshead speed of 0.5 mm/min until fracture occurred. The fracture sites were examined with scanning electron microscopy (SEM) to determine the location of failure during debonding and to examine the surface treatment effects. One‐way analysis of variance (ANOVA) and multiple comparison (Dunnet T3) tests were used for statistical analysis of data. Results: The mean micro‐shear bond strength values (SD) in MPa were—NT: 4.10 (3.06), Al: 7.56 (4.11), HF: 14.04 (2.60), S: 14.58 (2.14), AlHF: 15.56 (3.36), AlS: 23.02 (4.17), HFS: 24.7 (4.43), AlHFS: 26.0 (3.71). ANOVA indicated the influence of surface treatment was significant (p < 0.0001). SEM analysis did not reveal entirely cohesive failure in any composite or ceramic. Conclusion: The micro‐shear bond strength of a composite resin to IPS Empress 2 was significantly different depending on the surface treatment method. Among the investigated methods, silane coating after airborne‐particle abrasion and etching was the most effective surface treatment in terms of bond strength increase.