46o DISEASES OE THE SKIN 



ACNITIS. 



An uncommon papulo-puslular eruption, probabh- caused by a 

 poison g-enerated under the influence of sunlight b\- cutaneous cells 

 sensitized to the tubercular \irus, and attacked bv the products of an 

 intestinal aulo-inoculation, the whole process being anaphylactic in 

 nature (Chalmers and Martin). 



The papules appear about the head, neck, face, dorsum of the 

 hands and on parts exposed to light. 



71ie condition has been differentiated from Acne vulgaris, Acne 

 varioliformis. Lupus vulgaris, Erythema induratum, Dermatitis nodosa 

 rubra and Drug eruptions. 



Von Pir(|uet's reaction was positive in Chalmers's case. 



Salol, salines and calomel are indicated. 



There should be early protection against auto-intoxication. 



ACRODERMATOSIS. 



This is probably an impetiginous afifection of the hands and feet 

 due to staphylococci or streptococci, as seen in poor children living 

 under insanitary conditions. 



ACRODERMATITIS CHRONICA ATROPHICANS. 



A general condition of inflammation and infiltration of the skin 

 followed by atrophy. Its aetiology is unknown. It differs from 

 idiopathic atrophy by the inflammatory stage. 



ACRODERMATITIS VESICULOSA TROPICA. 



A rare disease of unkmnvn causation. Both hands are afTected, 

 the skin is glossy and tense, contains small vesicles with clear fluid. 

 The fingers taper, there is pain and hypenesthesia. The hands are 

 useless for work. The condition lasts from several months to several 

 years and may clear up spontaneously. 



Give ichlhyol, internally, 3 grains, t.d.s., and externally as an 

 ointment, 2-5 per cent. 



ALBINISM. 



A partial or complete congenital absence of pigment in the skin, 

 iris, choroid and hair. The' condition is generally hereditary and is 

 more common in coloured peoples. It is endemic in some tropical 

 regions. There is intolerance to light, and hence contracted pupils. 

 The hair is white, fine and silky; the iris rose-coloured, and the pupil 

 appears to be a pinkish-red. 



