AIMS To search for laboratory evidence of hereditary spherocytosis (HS) among apparently healthy children with the chance finding of an isolated increase in hyperchromic red cells (cells with intracellular haemoglobin concentration > 410 g/litre). METHODS Blood and reticulocyte counts and Pink tests were performed on successive children found on routine counts to have > 4% hyperchromic red ce...

Pityriasis versicolor is a superficial fungal infection of the skin caused by yeast of the genus Malassezia. It is characterized by hypopigmented or hyperpigmented macules and patches usually involving the trunk [1]. The variants of pityriasis versicolor include hypochromic, hyperchromic, combination of hypo-hyperchromic, erythematous, circinate, atrophic and acral [2-4]. However, the follicula...

The scientific literature reviews on the origin of anemia and development after gastric duodenal resection, state advanced hyperchromic anemia, both experimental clinical observations possibility developing forms are given in this article.

A series of ketohydrazone dyes has been synthesised from 4-morpholino-2-naphthol and ortho -substituted anilines by conventional diazotisation coupling chemistry. Whilst the new, dull orange-red, exhibit only a minor variation absorption maxima across range substituents, they are hyperchromic relative to Sudan 1 their none analogue. Protonation selected dye examples results in bathochromic shif...

Contradictory opinions have been expressed as to the significance of the hyperchromic, shrunken cells (Flesch, 1887) which are often found in normal animal brains and, under certain conditions, in human material. Nissl (1896) considered hyperchromic cells artifacts; Cajal ('09) resting cells; Dolley ('10) to represent initial stages of fatigue; Fortuyn ('27) functional stages; Einarson ('49a an...

The authors report a case of Tinea nigra in an 8-year-old child, male, from Itajaí, SC, Brazil, with lesions of the macular hyperchromic type, unique, asymptomatic, localized in the right palmar area. The lesion was treated with the topical antifungal butenafine, with remission of symptoms and without recurrence at follow-up for two years.

Through a photographic essay, we identified similarities between hyperchromic maculas of two cases of Tinea Nigra with images of a heart-shaped mangrove called "Coeur de Voh", located on the French island of New Caledonia (Oceania) and of a rock formation called "Parrot Beak" located on Cabeçudas Beach, Itajaí, Santa Catarina State (Brazil).