1C1D.2
Tertiary yaws
Bouba terciária
CategoryDefinition
Tertiary yaws develops in <10% of untreated infected individuals after and interval of 5 years or more. The late stage skin lesions are characterised by gummatous nodules with necrotic tissue destruction, followed by debilitating scarring and contracture. Destructive osteitis can result in ulceration of the palate and nasopharynx (‘gangosa’), or bowing of the tibia (sabre shins). Hypertrophic periostitis at periarticular sites can lead to exostosis of the paranasal maxillae (‘goundou’).
Index Terms
Tertiary yawsGummata and ulcers of yawsgummata and ulcers due to yawsgummata of yawsgummatous frambesidenodular late yawsulcers of yawsyaws gummayaws gummata and ulcersyaws ulcerulcerative gumma due to yawsulcerated nodular late yawsgummatous framboesidegummatous yawsGangosaRhinopharyngitis mutilansyaws gumma of nosegoundougoundou of yawsyaws goundouBone and joint lesions of yawsyaws of boneYaws hydrarthrosisHydrarthrosis of early yawsHydrarthrosis of late yawsYaws osteitisosteitis of yawsEarly or late osteitis of yawsGummatous osteitis of yawsYaws periostitisperiostitis of yawsEarly or late hypertrophic periostitis of yawshypertrophic periostitis of yawsEarly periostitis of yawsEarly hypertrophic periostitis of yawsHypertrophic periostitis of late yawsPeriostitis of late yawsGummatous periostitis of yawsGanglion of yawsyaws ganglionEarly or late ganglion of yawsHenpueGumma of bone of late yawsyaws gumma of bone