Mechanism
Implantation sites can be anywhere in the abdomen but can include the peritoneum outside of the uterus, the rectouterine pouch (culdesac of Douglas), omentum, bowel and its mesentery, mesosalpinx, and the peritoneum of the pelvic wall and the abdominal wall. The growing placenta may be attached to several organs including tube and ovary. Rare other sites have been the liver and spleen, giving rise to a hepatic pregnancy or splenic pregnancy, respectively. Even an early diaphragmatic pregnancy has been described in a patient where an embryo began growing on the underside of the diaphragm. Primary versus secondary implantation
A primary abdominal pregnancy refers to a pregnancy that first implanted directly in the peritoneum, save for the tubes and ovaries; such pregnancies are very rare, only 24 cases having been reported by 2007. Typically an abdominal pregnancy is a secondary implantation which means that it originated from a tubal (less common an ovarian) pregnancy and re-implanted. Other mechanisms for secondary abdominal pregnancy include uterine rupture, rupture of a uterine rudimentary horn and fimbrial abortion. Diagnosis
Suspicion of an abdominal pregnancy is raised when the fetal anatomy can be easily felt, or the lie is abnormal, the cervix is displaced, or there is failed induction of labor. X-rays can be used to aid diagnosis.
Nasal septal hematoma is a condition affecting the nasal septum. It can be associated with trauma.A septal hematoma is blood that collects in the space between the septal cartilage and the overlying perichondrium (a cross section of the cartilaginous portion of the nasal septum). A hematoma may deprive the septal cartilage of its blood supply from the overlying mucosa and can lead to permanent sequelae.The septal cartilage has no blood supply of its own and will receives all of its nutrients and oxygen from the perichondrium. An untreated septal hematoma may lead to the destruction of the septum and immediate drainage is necessary. Timely diagnosis and/or treatment of septal hematomas can cause what is called a saddle nose deformity.This condition is more common in children because the septum is thicker and the lining more flexible. Signs and symptoms
A normal nasal septum is rigid and thin. If you have a septal hematoma, your doctor will be able to press it down with a swab as the area will be soft. A quick check in the nose will show any swelling between the nostrils.Symptoms can include:

blockage in breathing
change in nose shape
painful swelling of nasal septum
nasal congestion.On occasion, it is possible for people with a septal hematoma to experience headache, nausea, vomiting, and fainting. Causes
The most common causes of nasal septal hematomas include:

broken nose (nasal fracture)
medication
surgery or injury to the soft tissue area.In adults, nasal septal hematoma typically occur with significant facial trauma and/or nasal fracture.