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Article Synopsis
  • Superficial mucoceles (SM) are benign, small vesicles in the oral mucosa caused by salivary gland duct rupture, often found on the lower lip.
  • Immune checkpoint blockade treatments used in cancer can lead to skin-related side effects in 40-50% of patients, with severe cases occurring in 1-2%, such as Stevens-Johnson syndrome.
  • A case study highlighted the successful treatment of multiple SM in a patient with squamous cell carcinoma, utilizing plasma and electrocoagulation methods, and aimed to improve understanding of mucosal reactions to cancer therapies.
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Background: Therapeutic modalities used in bladder lesions/neoplasms (electrocautery, fulguration, and laser) could produce morphologic alterations leading to diagnostic challenges. While often seen on histology, they can present in urine cytology as atypia or even raise the concern for malignancy. Herein, we present clinicopathologic findings of four patients with cautery artifact in urine cytology.

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Introduction And Importance: Ureteric stump syndrome [USS] is a series of febrile recurrent lower abdominal pain, urinary tract infections, and hematuria that sometimes present with empyema as a rare complication. The ureteric stump is left after ureteric re-implantation due to an impacted stone at the Vesical-ureteric junction [VUJ], or after nephrectomy of a non-functional kidney due to a distal stone; the ureteral stump forms a source of infection to the urinary bladder, in addition to long-term obstructive stones left at the ureteric stamp. This usually cause chronic irritation of the mucosa and potentially change to metaplasia, dysplasia and malignancy.

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Background: Submucosal pseudoinvasion and squamous metaplasia (SM) are incidental and special morphological findings in colorectal adenomas, and both can mimic invasive carcinoma. The coexistence of these two findings further increases the risk of misdiagnosis, posing a great diagnostic challenge to pathologists. From 1979 to 2022, only 8 cases have been reported, which was extremely rare.

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