Diseases of the skin : an outline of the principles and practice of dermatology / by Sir Malcolm Morris.

  • Morris, Malcolm (Malcolm Alexander), Sir, 1849-1924.
Date:
1911
Catalogue details

Licence: Public Domain Mark

Credit: Diseases of the skin : an outline of the principles and practice of dermatology / by Sir Malcolm Morris. Source: Wellcome Collection.

    762/898 (page 656)
    fibroma is composed of fibrous tissue, this is made up of fibrous and nervous tissue.1 A case has been re¬ corded by Preble and Hektoen in which multiple neuro¬ fibromas of the skin were associated with arthritis deformans. In an atypical case under the author and Wilfrid Fox there were no large pendulous tumours on the skin, only very fine fibrils in the skin were affected, the pigmentation was mottled, and there were fits —due, not, as might have been supposed, to intra¬ cranial neurofibromas, but to hysteria.2 In some cases decided pigmentation develops long before neuro¬ fibromas of nerve-trunks or molluscous tumours of the skin present themselves. In other cases the neuro¬ fibromas or the molluscous tumours, with or without cutaneous pigmentation, are complicated by the pre¬ sence of papillomatous growth. Parkes Weber3 has classified these anomalous or incomplete forms of the disease as follows: (i) Cases of plexiform neuroma unaccompanied by multiple molluscous tumours of the skin, with or without cutaneous pigmentation ; (2) cases of multiple molluscous tumours of the skin unaccom¬ panied by obvious neuro-fibromatosis of nerve-trunks, with or without decided cutaneous pigmentation ; (3) cases of pigmentation of the skin not (or not yet) accompanied by obvious neuro-fibromatosis of nerve- trnnks or molluscous tumours of the skin ; (4) anomalous cases of neuro-fibromatosis complicated by the co¬ existence of bony or papillomatous changes. Hard Fibromas and Neuro-Fibromas Clinical features.—These forms of fibroma vary-in size from a pin’s head to very large dimensions. They 1 For an exhaustive study of this affection, see work by Alexis Thomson. 2 Brit. Journ. Derm,., April, 1907, p. 109, 3 Ibid., 1909, p. 52.