Ganglioneuroma is a rare and benign tumor of the autonomic nerve fibers arising from neural crest sympathogonia, which are completely undifferentiated cells of the sympathetic nervous system. However, ganglioneuromas themselves are fully differentiated neuronal tumors that do not contain immature elements.Ganglioneuromas most frequently occur in the abdomen, however these tumors can grow anywhere sympathetic nervous tissue is found. Other common locations include the adrenal gland, paraspinal retroperitoneum, posterior mediastinum, head, and neck. It is contained within the neuroblastic tumors group, which includes: Ganglioneuroma (benign), Ganglioneuroblastoma (intermediate), Neuroblastoma (aggressive). Symptoms and signs
A ganglioneuroma is typically asymptomatic, and is typically only discovered when being examined or treated for another condition. Any symptoms will depend upon the tumors location and the nearby organs affected.For example, a tumor in the chest area may cause breathing difficulty, chest pain, and trachea compression. If the tumor is located lower in the abdomen, it may cause abdominal pain and bloating. A tumor near the spinal cord may cause spinal deformity or spinal compression, leading to pain and loss of muscle control or sensation in the legs and/or arms.These tumors may produce certain hormones, which can cause diarrhea, an enlarged clitoris (in females), high blood pressure, increased body hair, and sweating. Cause
There are no known risk factors for ganglioneuromas. However, the tumors may be associated with some genetic problems, such as neurofibromatosis type 1. Pathology
Pathologically, ganglioneuromas are composed of ganglion cells, Schwann cells and fibrous tissue. Ganglioneuromas are solid, firm tumours that typically are white when seen with the naked eye.
Electrolysis (used for sodium) fails because of the high solubility of potassium in molten KCl. Physical properties
The crystal structure of potassium chloride is like that of NaCl. It adopts a face-centered cubic structure. Its lattice constant is roughly 6.3 Å.   Crystals cleave easily in three directions. Some other properties are

Transmission range: 210 nm to 20 µm
Transmittivity = 92% at 450 nm and rises linearly to 94% at 16 µm
Refractive index = 1.456 at 10 µm
Reflection loss = 6.8% at 10 µm (two surfaces)
dN/dT (expansion coefficient)= −33.2×10−6/°C
dL/dT (refractive index gradient)= 40×10−6/°C
Thermal conductivity = 0.036 W/(cm·K)
Damage threshold (Newman and Novak): 4 GW/cm2 or 2 J/cm2 (0.5 or 1 ns pulse rate); 4.2 J/cm2 (1.7 ns pulse rate Kovalev and Faizullov)As with other compounds containing potassium, KCl in powdered form gives a lilac flame. Production
Potassium chloride is extracted from minerals sylvite, carnallite, and potash. It is also extracted from salt water and can be manufactured by crystallization from solution, flotation or electrostatic separation from suitable minerals. It is a by-product of the production of nitric acid from potassium nitrate and hydrochloric acid. The vast majority of potassium chloride is produced as agricultural and industrial grade potash in Saskatchewan, Canada, as well as Russia and Belarus. Saskatchewan alone accounted for over 25% of the worlds potash production in 2017. Laboratory methods
Potassium chloride is inexpensively available and is rarely prepared intentionally in the laboratory.