Spigelian hernia Spigelian hernia A Spigelian hernia (or lateral ventral hernia) is a hernia through the Spigelian fascia, which is the aponeurotic layer between the rectus abdominis muscle medially, and the semilunar line laterally. These are generally interparietal hernias, meaning that they do not lie below the subcutaneous fat but penetrate between the muscles of the abdominal wall; therefore, there is often no notable swelling. Spigelian hernias are usually small and therefore risk of strangulation is high. Most occur on the right side. (4th–7th decade of life.) Compared to other types of hernias they are rare. Patients typically present with either an
Inguinal lymph nodes Inguinal lymph nodes Inguinal lymph nodes are the lymph nodes in the inguinal region (groin). They are located in the femoral triangle, and are grouped into superficial lymph nodes, and deep lymph nodes. The superficial lymph nodes have three divisions – the superomedial, superolateral, and inferior superficial lymph nodes. They are divided into three groups: There are approximately ten superficial lymph nodes, and they drain to the deep inguinal lymph nodes. Inguinal lymph nodes may normally be up to 2 cm in size. They receive lymphatic afferents from the following: There can be three, four or five deep inguinal lymph