File:Dirofilariasis Case 234 (7482001118).jpg

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Dirofilariasis is caused by the dog heartworm Dirofilaria immitis. The larvae are transmitted by a mosquito bite. In humans the larvae, in almost all instances, do not develop and die. In rare cases the larvae transform into incompletely developed adult worms which die in the right ventricle and then embolize to the the lungs where infarction may occur. In dogs and other definitive hosts the mature adult worms inhabit the right ventricle.

This is a low magnification image of an old infarct caused by embolization of Dirofilaria. A fibrous capsule is present. Part of a partially calcified dead worm can be seen in the left lower quadrant (See NOTE)
Date
Source Dirofilariasis Case 234
Author Yale Rosen from USA

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This image was originally posted to Flickr by Pulmonary Pathology at https://flickr.com/photos/30950973@N03/7482001118 (archive). It was reviewed on 3 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0.

3 October 2019

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Date/TimeThumbnailDimensionsUserComment
current08:01, 3 October 2019Thumbnail for version as of 08:01, 3 October 20192,507 × 1,881 (2.7 MB)Netha Hussain (talk | contribs)Transferred from Flickr via #flickr2commons

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