A pleurotomy is the "surgical incision of the pleura to permit drainage of exuded liquids," with the Spanish equivalent being "pleurotomía" or "pleurostomía"

This radiography result likely makes reference to a surgical incision from a pleurotomy that left stitches, or in this case one stitch given that the word "punto" is in the singular.

A definition of "pleurotomía" in Spanish: "la técnica quirúrgica utilizada para comunicar la cavidad pleural al exterior mediante la utilización de un tubo o dren"

I would guess that the result, as used here, is in the imperative (often used with the infinitive in writing), giving a direction to remove something found during the course of the radiography, in this case a stitch.