Lung India

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

Ignotum per ignotius


Milind Baldi, Sahajal Dhooria, Ritesh Agarwal, Inderpaul Singh Sehgal 
 Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, Punjab, India

Correspondence Address:
Dr. Inderpaul Singh Sehgal
Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, Punjab
India




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


How to cite this URL:
Baldi M, Dhooria S, Agarwal R, Sehgal IS. Ignotum per ignotius. Lung India [serial online] 2019 [cited 2019 Oct 20 ];36:274-274
Available from: http://www.lungindia.com/text.asp?2019/36/3/274/256913


Full Text



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

1Baldi M, Dhooria S, Agarwal R, Sehgal IS. “Pearl” in the lung: Hydatid membrane. Lung India 2019;36:176.
2McDougall C, Aguilera F, Moase P, Lucas JS, Degnan BM. Pearls. Curr Biol 2013;23:R671-3.