BACKGROUND Retinoids have the capacity to accelerate the involution of multiple keratoacanthomas, including unusual variants such as keratoacanthoma marginatum centrifugum and keratoacanthoma en plaque that may persist and be associated with progressive growth and provide difficulties in diagnosis and management. OBSERVATIONS We describe 3 patients who had unusual infiltrated and keratotic pl...

We find new non-Abelian flux tube solutions in a model of Nf scalar fields in the fundamental representation of SU(Nc) × U(1) (Nc ≤ Nf ) and study their main properties. Among the solutions there are spinning strings as well as superconducting ones. The solutions exist only on a non trivial domain of the parameter space defined by the ratio between the SU(Nc) and U(1) coupling constants, the ma...

For each influenza virus genome segment, the coding sequence is flanked by non-coding (NC) regions comprising shared, conserved sequences and specific, non-conserved sequences. The latter and adjacent parts of the coding sequence are involved in genome packaging, but the precise role of the non-conserved NC sequences is still unclear. The aim of this study is to better understand the role of th...

Virtually all germline RET pathogenic variant carriers develop medullary thyroid carcinoma (MTC). If possible, thyroidectomy should be performed prophylactically, before developing MTC. We describe a patient with pheochromocytoma found to have p.Cys634Ser at age sixty years who would categorized as high risk based on genotype classification described by the American Thyroid Association and warr...