TINEA (RINGWORM) 493 



Treatment. — Strong iodine liniment or : — 



i\ Resoicin 2 drachms 



" Tinct. benz. CO i ounce 



Or, Chrysaiobin ointment 5 per cent., but it is necessary to examine the urine 

 and watch the patient. 



Continue for weeivS. Improvement is frequently followed by 



relapse. 



(10) T. intersecta. 



Parasite, Kndodermophyton castellani, found on the inner 

 surface of the scales; the mycelia are abundant, but spores 

 are rare. The former are long, straight, articulated threads 

 without fructifications. 



Attacks the arms, legs, chest and back. 



Lesions commence as small, round, elevated, ilchy patches, 

 with minute black papules about the border. Several may 

 coalesce. They are at first tense, then shrivelled, cracked 

 with white lines on the dark sur'face. The cracks deepen 

 and the scales are formed. 



Treatment. — Apply sulphur and chrysarobin ointments. 



(11) T. nigra. 



Parasite, Cladosporium mansoni, abundant in the lesions. 

 The mycelia are short, bent, often banana-shaped with large 



spores. 

 T. flava may co-exist with it. 

 Attacks any part of the body except the face, usually on the 



neck and chest. 

 Lesion is black, lustreless, with but little pruritus. 

 Treatment. — Easily curable except on the palms. 

 Small patches yield to 40 per cent, formalin. 

 Large patches to salicylic-alcohol lotion, 2 per cent. 

 Later apply resorcin ointment. 



(12) T. nigro-circinata. 



Parasite, Trichophyton cevlonese. It has large spores, not 



numerous, having a double contour. 

 Attacks the neck and scrotum. 

 Lesion, black rings with thick elevated margins. 

 Treatment. — Spontaneous healing is common, leaving dark 



patches. 



Apply tincture of iodine. 



(13) T. nodosa (Morris). 



A nodular concretion containing a fungus, and its spores 

 affecting the hair of whiskers, beard and moustache. The 

 affected hairs split and break. It is not to be confused with 

 piedra due .to T. giganteum. 



Cut the hair short and use antiparasitic remedies. 



