Classifications
German entomologist Fritz Zumpt describes myiasis as "the infestation of live human and vertebrate animals with dipterous larvae, which at least for a period, feed on the hosts dead or living tissue, liquid body substances, or ingested food". For modern purposes however, this is too vague. For example, feeding on dead or necrotic tissue is not generally a problem except when larvae such as those of flies in the family Piophilidae attack stored food such as cheese or preserved meats; such activity suggests saprophagy rather than parasitism; it even may be medically beneficial in maggot debridement therapy (MDT).Currently myiasis commonly is classified according to aspects relevant to the case in question:

The classical description of myiasis is according to the part of the host that is infected. This is the classification used by ICD-10. For example:dermal
sub-dermal
cutaneous (B87.0)
creeping, where larvae burrow through or under the skin
furuncular, where a larva remains in one spot, causing a boil-like lesion
nasopharyngeal, in the nose, sinuses or pharynx (B87.3)
ophthalmic or ocular, in or about the eye (B87.2)
auricular, in or about the ear
gastric, rectal, or intestinal/enteric for the appropriate part of the digestive system (B87.8)
urogenital (B87.8)
Another aspect is the relationship between the host and the parasite and provides insight into the biology of the fly species causing the myiasis and its likely effect.
Granular myringitis is a long term condition in which there is inflammation of the tympanic membrane in the ear and formation of granulation tissue within the tympanic membrane. It is a type of otitis externa.Without treatment it can lead to narrowing of the ear canal. A number of treatment options exist including putting vinegar in the ear, using antibiotic drops, and surgery. == References ==