A manual of otology for students and practitioners . wth of certain varieties. These preparations are verypopular with the laity, still otomycosis cannot be con-sidered a common disease. Dampness seems to favorother forms. Ceruminous masses are frequently found tocontain these fungi. Symptoms.—In some patients considerable masses ofthese fungi may be in the ear without noticeable incon-venience. In others reaction of the skin takes place and OTOMYCOSIS 115 pain and pruritus may be produced. There may alsobe a discharge of watery material. Still in a great manyinstances the ears are dry. It is
A manual of otology for students and practitioners . wth of certain varieties. These preparations are verypopular with the laity, still otomycosis cannot be con-sidered a common disease. Dampness seems to favorother forms. Ceruminous masses are frequently found tocontain these fungi. Symptoms.—In some patients considerable masses ofthese fungi may be in the ear without noticeable incon-venience. In others reaction of the skin takes place and OTOMYCOSIS 115 pain and pruritus may be produced. There may alsobe a discharge of watery material. Still in a great manyinstances the ears are dry. It is when the mould invadesthe tissues, either of the canal or the drum membrane,that symptoms are caused. If the growth producesa perforation of the latter structure, as they have beenknown to do, or if one exists, otherwise formed, thefungi may invade the tympanum, causing an otitis inspection of the canal the appearance varies withnature of the fungus and the location of its growth. Inthe aspergillus niger the growth is covered with dark. Fig. 44.—Aspergillus (Burnett). Mycelial web before sporangea have develoDed. developed. spots, the sporangea, while in the flavus the masses areof a brownish-yellow color. They may be found uponthe canal walls or upon the membrana tympani. Thesuperficial layers of the skin exfoliate, leaving a moistsurface. Sometimes the masses consisting of fungi andepithelial scales accumulate in sufficient quantity toocclude the lumen of the canal. In such instances therewill be diminution of hearing, perhaps tinnitus as well. Diagnosis.—The diagnosis is made from the charac-teristic appearance of the masses and the results ofthe microscopic examination of some of the materialremoved. 116 DISEASES OF THE EXTERNAL EAR Prognosis.—The prognosis as a rule is good. It willusually be possible to cure the disease which they causeby destroying the vitality of the fungi. Treatment.—In the treatment of this disease alcoholis a sovereign remedy. It
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