Pink Penstemon Nitidus

Lichen nitidus.

E688 CMAJ, December 9, 2014, 186(18) © 2014 Canadian Medical Association or its licensors A previously healthy eight-year-old girl presented with a 9to 12-month history of a papular eruption on her arms and back that was slightly pruritic. Her medical and family histories were otherwise unremarkable. Physical examination showed multiple flat-topped papules over the extensor surfaces of her back...

Factors limiting hybridization between Penstemon spectabilis and Penstemon centranthifolius

Speciation involves the formation of reproductive isolating mechanisms such as a difference in pollinators, incompatibility between pollen tubes and stylar tissue, hybrid seed abortion, or poor growth of hybrid seedlings. We studied reproductive isolating mechanisms in naturally sympatric populations of Penstemon spectabilis Thurber and Penstemon centranthifolius (Benth.) Benth. where F1 hybrid...

Actinic lichen nitidus

We present the case of a 29-year-old black female with an initial clinical and histopathologic diagnosis of actinic lichen nitidus. Three years later, she presented with scattered hyperpigmented macules with oval pink/violaceous plaques bilaterally on her forearms and on her neck, clinically consistent with actinic lichen planus. She was treated with topical steroids at each visit, with subsequ...

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Lichen nitidus généralisé

Le lichen nitidus est une forme inhabituelle de granulomatose idiopathique décrite en 1907 par Pinkus. Il est caractérisé par de multiples petites papules luisantes qui intéressent les organes génitaux, les bras, les avant-bras et le tronc. Un patient âgé de 42 ans, ouvrier spécialisé dans le revêtement des sols présente depuis 2 ans des lésions papuleuses acuminées mesurant 1 à 2 mm de diamètr...