[Pulmonary trunk hydatidosis secondary to lung involvement; A sheperdys tale]

Hydatid cyst of the heart is a rare disease which seems endemic among rural areas and countries exporting muttow. The established theory regarding heart involvement in hydrated cyst is because of involvement of the coronary arteries due to Echinococcus granulosis disease. Here a case is reported where hydrated cyst initially affected the areas adjacent to the pulmonary valve, later spreading to the right and left pulmonary arteries and eventually metastasizing to both lungs, and because of this rare course, this spread in this patient could be considered as a retrograde spread [from heart to lungs]. The site of origin and the spread raises this question as to whether E.granulosa can directly station itself at the pulmonary valve and resist the blood current and thus produces the mother cyst at that particular site