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LETTER TO EDITOR
Year : 2019  |  Volume : 36  |  Issue : 3  |  Page : 274  

Ignotum per ignotius


Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, Punjab, India

Date of Web Publication24-Apr-2019

Correspondence Address:
Dr. Inderpaul Singh Sehgal
Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, Punjab
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/lungindia.lungindia_134_19

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How to cite this article:
Baldi M, Dhooria S, Agarwal R, Sehgal IS. Ignotum per ignotius. Lung India 2019;36:274

How to cite this URL:
Baldi M, Dhooria S, Agarwal R, Sehgal IS. Ignotum per ignotius. Lung India [serial online] 2019 [cited 2019 Jul 19];36:274. Available from: http://www.lungindia.com/text.asp?2019/36/3/274/256913



Sir,

We thank the authors for the interest shown in our article[1] and describing the mechanism of pearl formation in detail. The mechanism of hydatid cyst formation was not the focus of our image, but rather the appearance of the membrane during diagnostic flexible bronchoscopy. Indeed, the hydatid membrane did appear like a pearl on bronchoscopic examination and certainly it is not due to some “light effect.” While the authors describe the pearl formation to a process of mineralization controlled by shell matrix gene, there are also claims that the natural pearl formation in fact is a host reaction to a foreign protein or an antigen most commonly a parasite.[2]

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
   References Top

1.
Baldi M, Dhooria S, Agarwal R, Sehgal IS. “Pearl” in the lung: Hydatid membrane. Lung India 2019;36:176.  Back to cited text no. 1
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2.
McDougall C, Aguilera F, Moase P, Lucas JS, Degnan BM. Pearls. Curr Biol 2013;23:R671-3.  Back to cited text no. 2
    




 

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