Fig. 15. Activation of tinea capitis which may follow x-ray therapy or develop spon- 

 taneously. A, tinea capitis due to M. audouini before x-ray therapy, showing gray-patch, rela- 

 tively noninflamrnatory lesions. B shows severe inflammatory, pustular eruption which appeared 

 over the scalp three weeks after epilating dose of x-rays. Erythematous papular lesions were 

 noted on the trunk and extremities. Such a complication occurs in less than 1 per cent ol 

 patients treated with x-rays. C and D, tinea capitis clue to M. lanosuin. In C, the flare-up ol 

 lesions with development of ids on arms and trunk was spontaneous; in D, the occurrence 

 followed an epilating dose of x-rays. 



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