Sj?gren syndrome(SS)is an immune disease mainly characterized by lymphocytes infiltrate in salivary and lacrimal glands,leading to glandular secretion disorders and dryness in the mouth and eyes.In recent years,clinical application of ultrasound elastography(USE)increased widespread,providing a new imaging method for diagnosis of SS.The research progresses of USE in SS were reviewed in this article.

Sj?gren syndrome(SS)is an immune disease mainly characterized by lymphocytes infiltrate in salivary and lacrimal glands,leading to glandular secretion disorders and dryness in the mouth and eyes.In recent years,clinical application of ultrasound elastography(USE)increased widespread,providing a new imaging method for diagnosis of SS.The research progresses of USE in SS were reviewed in this article.

Urachal carcinoma (UrC)is a rare urological malignancy. UrC is not obvious in its early symptoms, and is mostly in the advanced stage at diagnosis, with a poor prognosis. Surgical treatment was preferred by partial cystectomy + resection of complete umbilical and umbilical urinary catheter ± pelvic lymph node dissection, and more than 90% of UrC were confirmed as adenocarcinoma through postoperative pathology. Systemic treatment is often based on treatment protocols for bladder adenocarcinoma or colorectal adenocarcinoma.This article reviews recent domestic and international research on UrC, summarizing its incidence, clinical characteristics, diagnosis, and treatment.