Case introduction Patient age: 50 years old patient gender: The male is treated for treatment for more than one month due to white crystals throughout the body and foul odor. Past history: I have suffered from uremia for 11 years and have regular dialysis treatment twice a week.

case introduction

Patient age: 50 years old

Patient gender: male

Seeking medical treatment for more than one month due to white crystals throughout the body with foul odor.

Past history:

Past suffering from uremia 11 years, with regular dialysis twice a week. I have a private complaint that I can urinate on my own and interrupted the dialysis treatment by myself in the past month. There is no speciality in personal history and family history.

body check:

blood pressure 160/108 mm Hg. There were no obvious abnormalities in the heart, lung and abdomen examinations. Edema in both lower limbs. Dermatological examination: A large number of fine grayish-white columnar crystals can be seen at the mouth of the hair follicles on the face, scalp, and trunk.

auxiliary examination:

serum urea nitrogen 58.2 mmol/L (normal reference value 2.86-7.14 mmol/L), creatinine 741.6μmol/L (44-133μmol/L). The crystalline fragments were taken and diluted in normal saline, and the urea nitrogen concentration was tested to be 60.3 mmol/L, which was close to the serum urea nitrogen level.

Initial diagnosis:

urea cream

Treatment:

Recovery Hemodialysis treatment, and the signs of urea cream disappeared after 2 weeks.

================================================================================================ urure cream in patients with chronic kidney disease is 3%. With the popularity of dialysis treatment for , urea cream patients are becoming increasingly rare. When the urea nitrogen level in the blood is 71 mmol/L, the concentration of urea in sweat is greatly increased. The nitrogen-containing compounds or other metabolic waste accumulated in the body can be excreted through the sweat glands, and crystalline powder is formed on the surface of the skin. . Urea cream needs to be distinguished from retention keratosis, atopic dermatitis, , etc. In order to verify the component of crystals, crystal fragments can be taken and diluted in normal saline to test whether the urea level is comparable to the blood urea level, and then diagnose it.

Past Notes

2022-10-02