. A manual of diseases of the nervous system. nmet with over the temporal bone, in the lumbar, cervical, brachial,and solar plexuses, on the penis and the mamma. It may be quitesuperficial or deeplyseated. The cords,from 1 mm. to seve-ral centimetres indiameter, consist ofa clear outer zone ofconcentric fibrillarconnective tissue, ofinner looser nucle-ated tissue, and, inthe middle, a bundleof nerve-fibres, somenormal, others de-generating. Thecords are connectedtogether by loose tissue, sometimes myxomatous, separated fromthe proper tissue of the cords by an epitheliated space. The growthof t
. A manual of diseases of the nervous system. nmet with over the temporal bone, in the lumbar, cervical, brachial,and solar plexuses, on the penis and the mamma. It may be quitesuperficial or deeplyseated. The cords,from 1 mm. to seve-ral centimetres indiameter, consist ofa clear outer zone ofconcentric fibrillarconnective tissue, ofinner looser nucle-ated tissue, and, inthe middle, a bundleof nerve-fibres, somenormal, others de-generating. Thecords are connectedtogether by loose tissue, sometimes myxomatous, separated fromthe proper tissue of the cords by an epitheliated space. The growthof this form is extremely slow, but it may exert compression onadjacent A remarkable case of extensive myxomatousdisease of the nerves of the forearm, congenital in origin, pre-senting analogies to plexiform neuroma, is recorded by Mr. DeMorgan. J * A unique case of rliiibdomyoma occurring jr- a nerve is recorded by Orlandi(Arch. p. 1. sc. rned., xix, 5). t Maichand, Viichows Archiv, Bd. Ixxvi, p. Path. Trans., vol. xxvi, p. —Plexiformneniomafromtheorbit. (AfterMar-chand.) The connective tissue surrounding tlie cordahas been removed except at «,and irregular, cylindrital,nodular cords are seen anastomosing. A nerve pusseainto the tumour and suddenly becomes enlarged. %d^ 92 NEUROMA. The subcutaneous extremities of sensory nerves are sometimesenlarged into minute tumours which, when painful, have been termed tubercula dolorosa. Neuromata inthe skin may co-exist with similartumours on the nerve-trunks. Thoseshown in Pig. 46 are from the samecase as the tumouis represented I Figs. 47—49. The size attained by growths onnerves varies from that of a childshead to a nodule only just rarely exceed the dimensions ofPia. neuromata from the closed fist. The variation in sizeskin of abdomen. (After Smith.) » i. • i j • -n , . -i . 01 multiple neuromata is illustrated in Figs. 47—49, after Smith.* The large tumour (Pig. 47
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