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Anterior cutaneous nerve entrapment syndrome (ACNES) is a nerve entrapment condition that causes chronic pain of the abdominal wall. [1] It occurs when nerve endings of the lower thoracic intercostal nerves (7–12) are 'entrapped' in abdominal muscles, causing a severe localized nerve (neuropathic) pain that is usually experienced at the front of the abdomen.
A positive test indicates the increased likelihood that the abdominal wall and not the abdominal cavity is the source of the pain (for example, due to rectus sheath hematoma instead of appendicitis). [ 3 ] [ 4 ] A negative Carnett's sign is said to occur when the abdominal pain decreases when the patient is asked to lift the head; this points ...
A rectus sheath hematoma is an accumulation of blood in the sheath of the rectus abdominis muscle.It causes abdominal pain with or without a mass.. The hematoma may be caused by either rupture of the epigastric artery or by a muscular tear.
While many causes of lower left abdominal pain can be managed at home through lifestyle changes and over-the-counter remedies, persistent or severe symptoms require professional medical evaluation ...
Diastasis recti, or rectus abdominis diastasis, is an increased gap between the right and left rectus abdominis muscles. [1] The increased distance between the muscles is created by the stretching of the linea alba , a connective collagen sheath created by the aponeurosis insertions of the transverse abdominis , internal oblique , and external ...
The rectus abdominis is divided centrally (mid-line) by the fibrous linea alba. [33] In pregnancies that experience rapid fetus growth or in women with weak abdominal muscles, this pressure can cause the rectus abdominis muscle to separate along the linea alba, creating a split between the left and right sides of the rectus abdominis. [ 34 ]
It is a hyaline degeneration of skeletal muscles such as rectus abdominis and diaphragm, and occurs in severe toxaemia as typhoid fever. It is also seen in electrical burns. [1] Grossly the muscles appear pale and friable; microscopically, the muscle fibres are swollen, have a loss of cross striations, and show a hyaline appearance.
The rectus sheath (also called the rectus fascia [1]) is a tough fibrous compartment formed by the aponeuroses of the transverse abdominal muscle, and the internal and external oblique muscles. It contains the rectus abdominis and pyramidalis muscles, as well as vessels and nerves.