There is frequent confusion between Theodor Langhans (1839-1915) and Paul Langerhans (1847-1888) in the literature. Theodor Langhans was a German pathologist who discovered and described the "giant cells" with nuclei close to the outer membrane of the tubercles. Today, these cells are called "Langhans' giant cells". The eponym "Langerhans' cells" refers to dendritic cells in the stratum spinosum of the epidermis. Paul Langerhans described these cells for a competition organised by the Berlin Medical Faculty when he was still a student. Most doctors know Paul Langerhans through the first description of the "Langerhans' islet cells" of the pancreas. Langerhans died of tuberculosis at the age of 40 after a long exile on the island of Madeira.
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