Appendiceal actinomycosis mimicking malignant tumor: a rare case report.

Introduction: Actinomycosis is an uncommon bacterial infection caused by bacteria that typically progresses slowly and leads to the formation of masses. Although it commonly affects the cervicofacial area, about 20% of cases occur in the abdominopelvic region. Because the disease can be mistaken for a tumour due to its infiltrative mass-like nature on imaging, over 90% of cases are only diagnosed following surgery and histological confirmation.

Persistent Asymptomatic Isolated Microscopic Hematuria in Adolescents is not Associated With an Increased Risk for Early Onset Urinary Tract Cancer.

Objective: To elucidate the association between adolescent microscopic hematuria and early onset urothelial carcinoma and renal cell carcinoma.

Methods: Nationwide, population-based, retrospective cohort study using medical data of 970,366 adolescents aged 16 through 19 years (58.6% male) examined for fitness for military service between 1980 and 1997.