Toxomerus hauseri Mengual sp. n. and Toxomerus picudus Mengual sp. n. are described from Peru and Ecuador respectively. Toxomerus circumcintus (Enderlein, 1938) is treated as a valid species and not considered synonym of Toxomerus marginatus, and Toxomerus ovatus (Hull, 1942) is considered junior synonym of Toxomerus nitidus (Schiner, 1868). An identification key for the Toxomerus species with ...

Many skin conditions are dangerous, and some can even be life threatening. However, there also many that not physically harmful but negatively impact a person’s thoughts, feelings, or self-confidence. In this article, we discuss one of those conditions, called lichen nitidus. This condition is more common in kids young adults. When people have nitidus, they develop small, shiny, smooth bumps on...

Traumatic neuromas are tumors resulting from hyperplasia of axons and nerve sheath cells after section or injury to the nervous tissue. We present a case of this tumor, confirmed by anatomopathological examination, in a male patient with history of circumcision. Knowledge of this entity is very important in achieving the differential diagnosis with other lesions that affect the genital area suc...

ransepidermal elimination is a disorder in which T dermal stimuli profoundly effect the behavior and structure of the overlying epidermis. Briefly, there are two categories of disorders: the first are primary dermatoses and consist of elastosis perforans serpiginosa and reactive perforating collagenosis; the second group originates from alterations of dermal constituents in preexisting disorder...