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The resulting scars are irregular, deep and puckered, and show a great tendency to contract. Keloid frequently develops in such cicatrices. [Illustration: FIG.
It is met with also in the subcutaneous and intermuscular cellular tissue, and in the abdominal wall, where it sometimes attains considerable dimensions. Various forms of fibroma are met with in the mamma and are described with diseases of that organ. The fibrous overgrowths in the skin, known as keloid and molluscum fibrosum, and those met with in the sheaths of nerves, are described elsewhere.
Scars occasionally broaden out and become prominent, and on exposed parts this may prove a source of disappointment after operations such as those for goitre or tuberculous glands in the neck. There is sometimes considerable improvement from exposure to the X-rays. Keloid.
The ulcers and sinuses persist indefinitely, or they heal and then break out again; sometimes the skin becomes infected, and a condition like lupus spreads over a considerable area. Spontaneous healing finally takes place after the caseous tubercle has been extruded; the resulting scars are extremely unsightly, being puckered or bridled, or hypertrophied like keloid.
On her back, over, and following the direction of the ribs, were growths attributed to the wounds caused by a flogging. This case was quite remarkable for the predisposition shown to keloid at an early age, and the variety of factors in causation.
The multiple, soft fibroma known as molluscum fibrosum, which depends upon a neuro-fibromatosis of the cutaneous nerves, is described with the tumours of nerves. The "painful subcutaneous nodule" is a solitary fibroma related to one of the cutaneous nerves. The hard fibroma known as keloid is described with the affections of scars.
Structure of skin Blisters Callosities Corns Chilblains Boils Carbuncle Abscess Veldt sores Tuberculosis of skin: Inoculation tubercle Lupus: Varieties Sporotrichosis Elephantiasis Sebaceous cysts or wens Moles Horns New growths: Fibroma; Papilloma; Adenoma; Epithelioma; Rodent cancer; Melanotic cancer; Sarcoma AFFECTIONS OF CICATRICES Varieties of scars Keloid Tumours AFFECTIONS OF NAILS.
The form of injury causing the cicatrix is no factor in the production of keloid, the sting of an insect, the prick of a needle, and even the wearing of ear-rings having been frequent causes of keloid-formations among the negro race. Collins describes a negress of ninety, born of African parents, who exhibited multiple keloids produced by diverse injuries.
Keloids are fibromata of the true skin, which may develop spontaneously or in a scar. Although the distinction of true and false keloid has been made, it is generally discarded. According to Hebra a true typical keloid is found once in every 2000 cases of skin-disease. It is, however, particularly the false keloid, or keloid arising from cicatrices, with which we have mostly to deal.
There is a natural hesitation to excise keloid because of the fear of its returning in the new scar. The application of radium is, so far as we know, the only means of preventing such return. The irritation associated with keloid may be relieved by the application of salicylic collodion or of salicylic and creosote plaster.
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