Proteus mirabilis, Proteus vulgaris, and Morganella morganii are the most common organisms isolated; less common organisms include Ureaplasma urealyticum and some species of Providencia, Klebsiella, Serratia, and Enterobacter. These infection stones are commonly observed in people who have factors that predispose them to urinary tract infections, such as those with spinal cord injury and other forms of neurogenic bladder, ileal conduit urinary diversion, vesicoureteral reflux, and obstructive uropathies. They are also commonly seen in people with underlying metabolic disorders, such as idiopathic hypercalciuria, hyperparathyroidism, and gout. Infection stones can grow rapidly, forming large calyceal staghorn (antler-shaped) calculi requiring invasive surgery such as percutaneous nephrolithotomy for definitive treatment.Struvite stones (triple-phosphate/magnesium ammonium phosphate) have a coffin lid morphology by microscopy. Uric acid stones
About 5–10% of all stones are formed from uric acid. People with certain metabolic abnormalities, including obesity, may produce uric acid stones. They also may form in association with conditions that cause hyperuricosuria (an excessive amount of uric acid in the urine) with or without hyperuricemia (an excessive amount of uric acid in the serum). They may also form in association with disorders of acid/base metabolism where the urine is excessively acidic (low pH), resulting in precipitation of uric acid crystals.
Signs and symptoms
The signs and symptoms of non-Hodgkin lymphoma vary depending upon its location within the body. Symptoms include enlarged lymph nodes, fever, night sweats, weight loss, and tiredness. Other symptoms may include bone pain, chest pain, or itchiness. Some forms are slow growing, while others are fast growing. Enlarged lymph nodes may cause lumps to be felt under the skin when they are close to the surface of the body. Lymphomas in the skin may also result in lumps, which are commonly itchy, red, or purple. Lymphomas in the brain can cause weakness, seizures, problems with thinking, and personality changes.While an association between non-Hodgkin lymphoma and endometriosis has been described, these associations are tentative. Causes
The many different forms of lymphoma probably have different causes. These possible causes and associations with at least some forms of NHL include:

Infectious agents:
Epstein–Barr virus: associated with Burkitts lymphoma, follicular dendritic cell sarcoma, extranodal NK-T-cell lymphoma and diffuse large B-cell lymphoma. Human T-cell leukemia virus: associated with adult T-cell lymphoma. Helicobacter pylori: associated with gastric lymphoma. HHV-8: associated with primary effusion lymphoma, multicentric Castleman disease. Hepatitis C virus: associated with splenic marginal zone lymphoma, lymphoplasmacytic lymphoma and diffuse large B-cell lymphoma. HIV infection. Some chemicals, like polychlorinated biphenyls (PCBs), diphenylhydantoin, dioxin, and phenoxy herbicides. Medical treatments, like radiation therapy and chemotherapy. Genetic diseases, like Klinefelter syndrome, Chédiak–Higashi syndrome, ataxia–telangiectasia syndrome. Autoimmune diseases, like Sjögren syndrome, celiac disease, rheumatoid arthritis, and systemic lupus erythematosus. Bone trauma and microfractures associated with diffuse large B-cell lymphoma originating in bone marrow.