1

A lung that's found to have Ababuot (pustules) even if they're very large - if they're filled with air or a clear liquid or a moistness that's viscous like honey or so forth or a moistness that's dry and hard even like a stone - behold she's permitted. But if there's found in them a putrid moistness or a liquid that's putrid or cloudy - behold he's treif.

Rema: And many rule it kosher even if cloudy or putrid (Rosh, Ran, Rashba, Tur, Maharil, and see above #36:16 a"p). Likewise it's the custom to rule kosher any Boah (cyst, Chullin 46b), if they're not sticky.

2

If a Sirkha (adhesion, a sticky thing) hangs coming out from the bubble it's treif.

Rema: The same rule applies to a bubble that's located where there's another Re'uta (demotion) - even though it would be kosher without this, for example on a Gabshushit (a mound) or at a place where a sound is heard, or the bubble itself makes sound, it's treif.

3

If it has two adjacent pustules it's forbidden even if they're filled with clear fluid. And if it's a single one that looks like two then you puncture it from one of its sides; if they drain to one place she's kosher and if not they're two and it's treif. This we say if there's Mugla (pus) or fluid in them. But if they're hard growths - Rema: The same rule applies to a Mursa (abcess, ulcer) in the lung, namely the lung's membrane covers it and it's not higher than the lung flesh (MHRY"W and other Achronim) - even if they're adjacent it's kosher.

Rema: And they're not called adjacent unless there isn't two hairbreadths between them after inflating the lung (Tosafot and Hagahot Ashir"i and A"F), provided that what's between them has the appearance of lung (M"K and BD"Y in the name of MHRA"K). And there are those that rule it kosher even if it's two adjacent pustules if the fluid in them is pure, clear and sweet (Rashbam, Rivash, Mordekhai, A"P and MHRY"W), and this can be followed depending on custom (ד"ע דקדק במהרי"ל שכ"כ בשיפולי) or if there's a big loss or pressure. And pustules in the lower parts of the lung that contain clear fluid, their rule is as with the adjacent ones (D"A from the implication of the Poskim). A pustule in a furrow or fold is treif since it constitutes two adjacent pustules (M"K). Two pustules facing each other from two lobes is kosher. But a pustule against a Tinri (a hard rock-like growth) is Treif, since the Tinri is hard and would puncture the pustule facing it (M"K). But a pustule and a Tinri adjacent is kosher (D"A).

4

A pustule found on the lower parts of the lung, the practice is we forbid them if there isn't some amount of flesh surrounding all sides (specifically [excluding] Boah, but Tinri is flesh in the lower parts of the lung) (D"A, MHR"Y and H"M).

And Shipulei (lower parts) means the lower bronchioles or the lobe, but not the cuts between the lobes.

Rema: And some say that any place that has Chidud (rigidness) is called Shipulei Reah (MHRY"W, SM"K and Kol Bo), therefore we should rule treif even higher up, where the lung is clung to the spine or it's against the cuts of the lobes, as the lungs is still Chad there and called Shipulei. But against the lobes it's kosher, as there wouldn't be Shipulei there, for there the lung is wide (B'bedikot). This should be conducted according to the custom. And if there's no line of flesh surrounding it we inflate it and feel on the side of the Boah; if thereby a line of flesh surrounds it then it's kosher (Beit Yosef); this applies if that flesh has the appearance of lung (BD"Y in the name of MHRA"K), otherwise if it's not surrounded by the appearance of flesh and they returned later and checkers and experts and they inflated and felt it, and by their beautiful expertise and power, that they inflated it thoroughly, expertly causing there to be a surrounding of flesh then it's kosher (B"Y #39 in the name of responsa of RYB"N and Rosh, actual story).

5

A cyst in the lung that's recognizable in another part, even though it's not Shofekhot L'hadadei (draining [venting through?] to that side) it's kosher.

Rema: That's if it's not standing in the space of the bronchia but if it's standing in the place of the bronchia namely 2 thumbwidths from the Shipulei in a small cattle or 4 thumbwidths in a large one, the custom is to rule it treif (MHRY"V and see S"K 23). One should not deviate from this, even if it's clear fluid in the cyst (MHRY"K shoresh 36 and D"A); this is specifically when it drains to there, but if it doesn't drain to there it's kosher (MHRY"W, ibid.), even if cloudy or putrid (ד"ע וכ"פ הפו'). A cyst that's below a Warda at [its] thin part (stem?) when there's a bronchus there it's treif, since it's recognizeable from one part to the other (M"K and MHRY"W). A Tinri that's recognizable from one part to the other, has the same rule as a cyst (Bedikot Yeshanim). And see below, Siman 42 regarding what's called Shofkhot L'hadadei (draining to that side).

6

A pustule that's found with a hole, where the hand of the slaughterer touches it and it's unknown whether it was punctured while alive or after dying, it's treif.

7

A Boah or Sirkha found in the trachea, the heart, or any place other than the lung, is kosher (and see below, end of Siman 46).