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Mollusca Contagiosa

skin, affection and normal

MOLLUSCA CONTAGIOSA (Bateman) This affection consists in the appearance of flat raised nodules, whitish or slightly yellowish, on normal skin and covered with normal skin, of lentil to pinhead size; they are slightly indented in the centre and have a small punetiform opening front which a peculiar core can be expressed which consists of the so-called mollusc= corpuscles. The affection, which is not rare in ehildren is principally situated around the eye (eyelid), at the forehead, neck and genitals. It is to be regarded as a benign affection which is infectious and therefore transmissible.

Pathological is. a new formation of epithelium of flabby consistency, the single lobules of which are separated by con nective tissue cords: a proliferation of glandular epithelial ducts to the cutis. Neisser believes that the epithelioma has appeared in conse quence of protozoa penetrating into the deeper layers of the rete; the parasite which Neisser believes to have found belongs to the sporozoa. Other authors look upon these cellular growths as degenerative manifes tations of protoplasm.

opinions on the nature of the virtts are not matured, there is no doubt after the successful inoculation experi ments of Rezius, Vidal and Pick, that molluscum contagiosum is a con tagious,transmissible disease. Re

cently M. Juliusberg has carried out successful transmissions upon the skin with the. filtered fluid of the niolluscum corpuscles. The contagions nature of this disease had previously been considered probable on account of its fre quent occurrence hi families and schools (Tommasoli 56 children in one asylum in Siena). In all these experiments the incubation period was very long.

warts and milium are principally to be con sidered. The diagnosis. however, is easy in consequence of the efflor escence being covered with normal skin, the depression in the centre and the small punctiform aperture. The prognosis is good. The treat rnent concerns itself with the evacuation of the small nodules by expressing and curetting them, application of galvanocautery and elec trolysis. Where there are very many molusca, desquannition cures may be tried (resorcin paste 10 to 30 per cent., green soap).