The Torsion of the Sessile Hydatid of Morgagni

The torsion of the sessile hydatid of Morgagni is a pathology that can occur when the hydatid is not directly inserted at its base and is associated with a pedicle [1,2]. There is a great variety of embryonic formations known as hydatids of Morgagni or Rosenmüller organs [3]. The sessile hydatid of Morgagni corresponds to the remnants of the Müllerian duct, presenting in the form of cysts [4]. The Müllerian duct refers to the structures present in the embryo that will give rise to the fallopian tubes and part of the vagina [5,6]. This remnant is located on the head of the epididymis or on an oviduct, another name for the fallopian tube, which connects the ovary to the uterus and allows the passage of the ovum released from the ovary [7,8].