|Year : 2015 | Volume
| Issue : 5 | Page : 168
Need of microbiological investigations in the case of infected hydatid cyst
US Udgaonkar1, SR Shah2
1 Ex-Professor, Department of Microbiology, Bharati Vidyapeeth Deemed University Medical College and Hospital, Sangli - 416 414, Maharashtra, India
2 Professor, Department of Microbiology, Bharati Vidyapeeth Deemed University Medical College and Hospital, Sangli - 416 414, Maharashtra, India
|Date of Submission||13-Feb-2014|
|Date of Acceptance||10-Jun-2014|
|Date of Web Publication||6-Feb-2015|
U S Udgaonkar
Ex-Professor, Department of Microbiology, Bharati Vidyapeeth Deemed University Medical College and Hospital, Sangli - 416 414, Maharashtra
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Udgaonkar U S, Shah S R. Need of microbiological investigations in the case of infected hydatid cyst. Indian J Med Microbiol 2015;33, Suppl S1:168
|How to cite this URL:|
Udgaonkar U S, Shah S R. Need of microbiological investigations in the case of infected hydatid cyst. Indian J Med Microbiol [serial online] 2015 [cited 2020 Feb 17];33, Suppl S1:168. Available from: http://www.ijmm.org/text.asp?2015/33/5/168/150981
The case report, 'Infected primary hydatid cyst located in Sartorius muscle' makes an interesting reading.  The photographs are good. It is a rare finding as stated by the authors since contractility and high lactic acid content of muscle do not allow the larvae to survive in muscle. Moreover, there are effective hepatic and pulmonary barriers. Predominant localization in the muscles of lower limb could be explained by the volume of muscle mass and rich blood supply.  However, there are few suggestions and details that need to be addressed.
The first line of introduction states it to be a protozoan infestation. Echinococcus granulosus is a helminth, metazoan and cestode. The cyst was infected. Authors have not mentioned the culture report and names of the preoperative antimicrobials used for two weeks. As clinical microbiologists, we are interested.
A wet mount microscopy of the centrifuged deposit of cyst fluid post surgery and examination of hydatid sand could have revealed the protoscolices and hooklets. It is simple and could have been done along with the histopathology. Hydatid sand is so-called because of the gritty feeling it gives when a drop of hydatid fluid is rubbed between two slides.  Eosin stain of cyst fluid can differentiate the dead protoscolices which take the stain from live ones which remain unstained.  The findings in images need arrows to point out the exact location. They are radiological and imaging diagnosis, difficult to decipher for a microbiologist. The patient's association with live stock, sheep and cattle is shown but there is no mention of dogs. Canines are the optimum definitive host of hydatid sand, and dog faeces containing the eggs are the common source of infection. The magnitude of the problem is clear by the fact that World Health Organization included Echinococcosis as part of Neglected Zoonotic Diseases for its 2008-2015 strategic plan for the control of neglected tropical diseases. 
| ~ References|| |
1. Karkas S, Cullu N, Altay N, Ozturk IA. Infected primary hydatid cyst located in sartorius muscle. Indian J Med Microbiol 2013;31:412-4.
2. Bharati S, Pal M. Primary hydatid cyst in gastrocnemius muscle. Niger J Surg 2012;18:19-21.
3. Garcia LS. Tissue cestodes: Larval forms in diagnostic medical parasitology. 5 th
ed. Washington: ASM Press; 2007. p. 381-441.
4. Cheesbrough M. Parasitological tests in district laboratory practice in tropical countries Part 1.UK: Cambridge University Press; 2005. p. 178 -309.