Myringotomy and tympanostomy, in parallel with the general distinction between an -otomy (cutting) and an -ostomy (creating a stoma with some degree of permanence or semipermanence). In this distinction, only a tympanostomy involves tympanostomy tubes and creates a semipermanent stoma. This distinction in usage is not always made. The word "tympanocentesis" specifies that centesis (aspiration for sampling) is being done. Etymologically, "myringotomy" ("myringo-", from Latin "myringa" "eardrum", + "-tomy") and "tympanotomy" ("tympano-" + "-tomy") both mean "eardrum cutting", and "tympanostomy" ("tympano-" + "-stomy" means "making an eardrum stoma". In 1649, Jean Riolan the Younger accidentally pierced a patient's ear drum while
Cherney incision Cherney incision The Cherney incision is an incision used in gynecologic surgery. It is similar to the Pfannenstiel incision but allows access to the space of Retzius and gives a larger area in which to operate. The Cherney incision begins when the skin is cut 2-3 centimeters above the pubic symphysis and the surgeon dissects down to the rectus abdominis muscle. The surgeon then uses blunt dissection with the fingers to separate the tendons from the bladder before cutting the tendons 1-2 centimeters above the pubic symphysis. The muscles are then lifted away, toward the patient's head (cephalad). Then, the