Periungual warts are warts that cluster around the fingernail or toenail. They appear as thickened, fissured cauliflower-like skin around the nail plate. Periungual warts often cause loss of the cuticle and paronychia. Nail biting increases susceptibility to these warts.Warts of this kind often cause damage to the nail either by lifting the nail from the skin or causing the nail to partially detach. If they extend under the nail, then the patient may suffer pain as a result. Sometimes periungual wart infections resemble the changes that are found in onychomycosis. In worst cases, if the infection causes injury or damage to the nail matrix, deformity in the nail may become permanent. As with other wart types, a number of treatments are available, including laser therapy, cryotherapy, salicylic acid, and other topical treatments. == References ==
Idiopathic pneumonia syndrome is a set of pneumonia-like symptoms that occur with no sign of infection in the lung. Idiopathic pneumonia syndrome is a serious condition that can occur after a stem cell transplant. It occurs between 2.2 and 15 percent of hematopoietic stem cell transplants. The incubation period ranges between 4 and 106 days, but mostly is about 22 days from transplant. Symptoms
The symptoms are like pneumonia, and include fever, chills, coughing, and breathing problems. Lack of oxygen may also occur. Risk factors
Risk factors for IPS can be old age, graft vs host disease, multi organ failure, and multiple organ failure. Diagnosis
Treatment
Treatment is only supportive, with steroids showing no effect. The need for mechanical ventilation is indicative of a poor prognosis. Steroids are often used, though often without effect. References

Idiopathic pneumonia syndrome entry in the public domain NCI Dictionary of Cancer Terms This article incorporates public domain material from the U.S. National Cancer Institute document: "Dictionary of Cancer Terms".