Epidermólisis ampollosa, reporte de un caso

Introduction: epidermolysis bullosa refers to a heterogeneous group of chronic hereditary pimple-like diseases affecting the skin and mucosae with blisters and vesicles after minimal injury, with variable involvement of other organs.Case report: 3-year-old female patient with exulcerated skin lesions and some erythema crust-plaques, with scaling at exposure sites such as hands, knees, feet, back of the neck and genitals. She was admitted to “Hermanos Cordové” Pediatric Teaching Hospital in Manzanillo. The medical care was based on maintaining the integrity of the skin avoiding trauma, temperature control, nutrition and prevention of secondary infections. A simple epidermolysis bullosa is diagnosed by skin biopsy.Conclusions: the disease is scarcely known with low incidence and prevalence. It is a major problem in the family and social environment, as parents are dealing with a rare disease of genetic origin and poor prognosis. Medical-social support helps to minimize the problems by means of information and coordination. Treatment requires the care of a multidisciplinary and specialized team.Introducción: la epidermólisis bulosa se refiere a un grupo heterogéneo de enfermedades hereditarias ampulosas crónicas, que afectan a la piel y las mucosas con formación de ampollas y vesículas tras mínimos traumatismos, con afectación variable de otros órganos.Presentación de caso: paciente femenina de 3 años de edad con lesiones de piel exulceradas y algunas eritematocostrosas en placas, con descamación en sitios de exposición como manos, rodillas, pies, parte posterior del cuello y genitales. Se encontraba ingresada en el Hospital Pediátrico Docente “Hermanos Cordové", de Manzanillo. Los cuidados médicos se basaron en mantener la entereza de la piel evitando traumatismo, control de la temperatura, nutrición y prevención de infecciones secundarias. Se diagnostica por biopsia de piel una epidermólisis bulosa simple. Conclusiones: la enfermedad es poco conocida con baja incidencia y prevalencia. Supone un problema de gran magnitud en el entorno familiar y social, al enfrentarse los padres a una enfermedad rara con origen genético y de mal pronóstico. El apoyo médico-social ayuda a minimizar los problemas, a través de la información y coordinación. Para su tratamiento es necesaria la atención de un equipo multidisciplinario y especializado.

Immunohistochemical profiling of Wilms tumor: a tissue microarray study

AIM: Wilms tumor (WT) usually shows a bi-phasic or tri-phasic morphology comprised of blastemal, stromal, and epithelial cells. Other biphasic renal tumors that can mimic WT may pose diagnostic dilemmas especially in preoperative needle biopsy samples. This tissue microarray study was designed to investigate the immunohistochemical features that may prove useful in the accurate diagnosis of WT in small biopsy samples. METHODS: Eight punches from each paraffin block of 45 cases of WTs were used to construct 5 tissue microarray blocks. Immunohistochemical reactions of blastemal, stromal, and epithelial cells of each core to a panel of 37 antibodies were evaluated. RESULTS: Blastemal elements expressed CD56 (22, 57%), CD57 (19, 55%), cytokeratin 22 (CK22) (12, 27%), and CK8 (9, 21%). Epithelial cells were stained mostly with CK22 (17, 94%), CK18 (12, 66%), CK8 (14, 70%), CD57 (10, 76%), CD56 (6, 43%), EMA (7, 44%), and CK19 (5, 25%). Stromal cells expressed SMA (21, 50%), actin (18, 48%), desmin (9, 20%), CD34 (7, 24%), CD57 (5, 18%), and CD56 (5, 15%). Only one case was positive for CK5/6, CK13, CK14, and CK20. Calretinin expression was seen in the stromal cells of 3 and placental alkaline phosphatase expression was observed in 1 case. All 3 components were negative for CK1, CK7, myoglobin, Myf-4, MyoD1, HMB45, chromogranin A, synaptophysin, Melan A, beta-HCG, alpha-HCG, alpha-Inhibin, renal cell carcinoma antigen, glycophorin A, PSA, and estrogen and progesterone receptors. CONCLUSIONS: CD56, CD57, CK22, CK18, CK8, EMA, SMA, and actin are useful markers for an accurate diagnosis of WT in small biopsy samples

Evaluation of sperm superoxide anion production and Mitochondrial Membrane Potential: flowcytometry in rats with experimental varicocele

"n Normal 0 false false false EN-GB X-NONE AR-SA MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial; mso-bidi-theme-font:minor-bidi;} Background: Varicocele is a major cause of male infertility, but its pathophysiology is unclear. Recent studies declare that fertile varicocele people with normal semen analysis are also at risk of loss of infertility. The exact mechanism by which varicocele damages spermatogenesis is still unknown. Some studies have reported increased Reactive Oxygen Species (ROS) is a major factor in semen of men with varicocele. The aim of this study was to investigate whether the source of elevated ROS is intracellular or not. In addition, we studied Mitochondrial Membrane Potential (MMP), viability, antioxidant activity, sperm count and motility in these rats."n"n Methods: The study group consisted of 28 male rats divided in four groups: control, sham, varicocele 1, varicocele 2, Experimental varicocele was established by partial ligation of the left renal vein in last two groups. Animals were sacrificed two and six months after surgery and dilation of the internal spermatic veins was observed. Then, superoxide anion production and Mitochondrial Membrane Potential were evaluated by Flow cytometry sperm characteristics were evaluated by Flow cytometry. Sperm superoxide anion production was assessed by the dihydroethidium and Mitochondrial Membrane Potential with rhodamin 123."n"n Results: Our results showed intracellular superoxide anion production significantly increased and Mitochondrial Membrane Potential, viability, sperm count and motility significantly decreased in rats with experimental left varicocele. However, there was no significant difference for seminal plasma antioxidant activity between all groups."n"n Conclusions: Consequently, our findings suggest that one of the main sources of ROS production is intracellular and we must consider it in treatment

Ovotesticular Disorder of Sex Development Presenting as an Acute Scrotum

Hermaphroditism is known as ovotesticular disorder of sex development. A 14-year-old boy was admitted with right acute scrotum. Exploration revealed tunica rupture and hematoma, with no viable tissue. After 1 month, he was admitted again with left hemiscrotal pain. Microscopic examination of the left gonad demonstrated foci of hemorrhagic cysts, primordial follicles, and regions of seminiferous tubules. We preserved a testicular tissue and the ovarian part was extracted completely. Long-term follow-up with his hormonal profile is reported. This is a case of ovotesticular disorder presented with acute scrotum and we also tried to reduce long-term hormone therapy, with preservation of testicular part. © 2018 Elsevier Inc

Ovotesticular Disorder of Sex Development Presenting as an Acute Scrotum

Hermaphroditism is known as ovotesticular disorder of sex development. A 14-year-old boy was admitted with right acute scrotum. Exploration revealed tunica rupture and hematoma, with no viable tissue. After 1 month, he was admitted again with left hemiscrotal pain. Microscopic examination of the left gonad demonstrated foci of hemorrhagic cysts, primordial follicles, and regions of seminiferous tubules. We preserved a testicular tissue and the ovarian part was extracted completely. Long-term follow-up with his hormonal profile is reported. This is a case of ovotesticular disorder presented with acute scrotum and we also tried to reduce long-term hormone therapy, with preservation of testicular part. © 2018 Elsevier Inc

Application of Human Acellular Breast Dermal Matrix (ABDM) in Implant-Based Breast Reconstruction: An Experimental Study

Background: The use of acellular dermal matrices (ABDM) has become more common for breast reconstruction to improve postoperative outcomes. We evaluated the efficacy of breast reconstruction by the application of human ABDM in a sheep model. Methods: The sheep in group I (GI) (N = 4) underwent the following procedures on the right side: (1) breast reconstruction using human ABDM after total mastectomy, (2) human ABDM under the skin, near the breast area and on the left side, (3) fat injection and human ABDM after partial mastectomy, and (4) replacement of ABDM in the abdominal wall far from the breast. Sheep in group II (GII) (N = 4) underwent the following procedures. On the right side: (1) breast reconstruction using ABDM after total mastectomy, (2) replacement of ABDM under the skin, near the breast area, and on the left side, (3) application of vicryl synthetic mesh after partial mastectomy and (4) replacement of mesh under the skin, near the breast area. Results: Histological evaluations of decellularized skin scaffolds demonstrated a collagen-based matrix with preserved ECM and complete nuclear removal. Histological evaluations of implanted ABDM demonstrated a viable matrix with fibroblast infiltration and revascularization in all follow-ups. The overall surgical complication rate was significantly lower in the ABDM implant under the skin and near the breast in both short- and long-term follow-ups. Conclusion: The results of this study demonstrated that the application of novel prepared ABDMs has promising outcomes for breast reconstruction to provide total coverage without the need for breast expansion before implant placement. No Level Assigned: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors http://www.springer.com/00266. © 2017, Springer Science+Business Media, LLC and International Society of Aesthetic Plastic Surgery