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Dear Colleagues,
The following paper has been published:
Aspergillosis in the middle ear of a harbour porpoise (Phocoena phocoena): a case report.
Mycoses, DOI:10.1111/j.1439-0507.2010.01863.x
Prahl S, Jepson PD, Sanchez-Hanke M, Deaville R, Siebert U (2010).
Abstract:
Hearing is one of the major senses in whales and dolphins (cetaceans). This is the first
report of severe mycotic otitis media in a cetacean, a juvenile female harbour porpoise
(Phocoena phocoena) from British waters that stranded alive. Gross examinations were
followed by histological and microbiological investigations of the auditory apparatus.
Both tympanic cavities and periotic sinuses displayed copious greenish-yellow purulent
and caseous material. Severe fungal infestation by Aspergillus terreus was documented
in the otic region but not in any other site of the body. Adjacent to the promontorium,
massive accumulation of fibrinous secretion and infiltration of clusters of inflammatory
cells were present. Newly formed cysts and vessels replaced the round window
membrane location, reminiscent of granulation tissue. Inflammatory cells and a severe
fibrin net were noted within the perilymphatic spaces of scala tympani and scala
vestibuli, indicative of an acute fibrinous otitis. Inflammatory reactions have probably
been caused by this fungal organism. The basilar membrane was solely covered by a
simple cuboidal epithelium. Complete absence of sensory cells of the Organ of Corti
characterised a further severe phenomenon, which possibly led to the animal_s poor
nutritional status and stranding. Potential portals of entry are being discussed.
The paper can be downloaded at:
http://www3.interscience.wiley.com.ezp-prod1.hul.harvard.edu/cgi-bin/fulltext/123311662/PDFSTART
For further information please contact: susanneprahl@web.de
Cheers,
Susanne
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