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[Leukaemia cutis during acute aleukaemic myeloid leukaemia in a two-month-old infant]

P Plantin1, D Firmin, I Kupfer-Bessaguet

  • 1Service de dermatologie, centre hospitalier Laënnec, B.P. 1757, 29107 Quimper cedex, France. p.plantin@ch-cornouaille.fr

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Leukocyte disorders can lead to either leukopenia, characterized by an abnormally low leukocyte count, or leukocytosis, marked by a very high leukocyte number.
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Immunodeficiency Diseases01:25

Immunodeficiency Diseases

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There are three main causes of immunodeficiency disorders...
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Leishmaniasis

Leishmaniasis is a protozoal disease caused by species of the genus Leishmania and transmitted through the bite of infected female sandflies. The parasite exists in two principal morphological forms during its life cycle. A sandfly acquires intracellular amastigotes from an infected reservoir host, such as a dog. Within the sandfly, these forms differentiate into motile, flagellated promastigotes. During a subsequent blood meal, promastigotes are injected into the human host, where they...
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The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...