We have posted updated reviews of the following topics:Bladder, ureter & renal pelvis > Cystitis > Cystitis cystica and cystitis glandularis
by Lindsey Durowoju, M.D., Maria Tretiakova, M.D., Ph.D.
Topic summary: Proliferative or reactive changes occurring in von Brunn nests which acquire luminal spaces, become cystically dilated (cystitis cystica), undergo glandular metaplasia (cystitis glandularis) or intestinal type metaplasia. Extremely common. Benign mimickers of invasive carcinoma.
Breast > Other benign tumors > Myofibroblastoma
by Samaneh A. Motanagh, M.D., Kristen E. Muller, D.O.
Topic summary: Benign spindle cell tumor with fibroblasts and myofibroblasts and recurrent monoallelic loss of 13q14 region including RB1. Well circumscribed with short fascicles of bland spindled cells and dense hyalinized collagen bundle.
Colon tumor > Polyps > Polyps-general
by Anna Sarah Erem, M.D. Candidate 2020, Benjamin J. Van Treeck, M.D., Christopher Hartley, M.D.
Topic summary: Updated topic with extensive discussion of current treatment options.
Liver & intrahepatic bile ducts nontumor > Noninfectious hepatitis > Nonalcoholic fatty liver disease
by Yoshihiro Ikura, M.D.
Topic summary: Nonalcoholic fatty liver disease (NAFLD) is hepatic steatosis generated in association with overweight / obesity, type 2 diabetes mellitus or other metabolic dysregulations. Macrovesicular hepatosteatosis accentuated on zone 3, potentially accompanying fibroinflammatory changes in metabolic patients. Histologic grade is assessed using a scoring system including steatosis, lobular inflammation and ballooning degeneration.
Lymphoma & related disorders > Follicular lymphoma > Primary follicular lymphoma of testis (PFLT)
by Mahsa Khanlari, M.D., Roberto N. Miranda, M.D.
Topic summary: Disease limited to the testis, with favorable course despite aggressive histology. Must distinguish from diffuse large B cell lymphoma and reactive follicular hyperplasia.