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Antrochoanal polyps (ACPs) are an infrequent clinical entity. Cholesterol granulomas (CGs) are commonly associated with chronic middle ear disease but are rare in the paranasal sinuses. We describe a case of a 10-year-old girl with a concomitant CG in an ACP which was surgically excised by nasosinusal endoscopic surgery. To our knowledge, there are only five previously published cases of CGs in ACPs and of these, only two were pediatric cases. We describe a third case in the youngest patient yet reported. Increased intrasinus pressure may affect venous and lymphatic drainage, leading to hemorrhages with hemolysis and deposition of cholesterol crystals and their esters initiating the formation of granulomas in the polyp. In addition, the insufficient lymphatic drainage prevents the complete elimination of lipids, contributing to the formation of cholesterol granulomas. The treatment and the outcome of an ACP associated with a CG are the same as for usual ACPs., (Copyright © 2018 Sociedad Española de Anatomía Patológica. Publicado por Elsevier España, S.L.U. All rights reserved.)

Pasteurella multocida is a common cause of infection in humans subsequent to bites or scratches by dogs and, particularly, cats. This infection usually results in superficial skin and soft tissue infections. Sonography can be used for diagnosing inflammatory conditions affecting tendons, including acute and chronic tenosynovitis. P. multocida tenosynovitis is rare, and the diagnosis can be missed if adequate tests are not performed. We report 2 cases of P. multocida tenosynovitis of the hand and wrist in which sonography played a valuable role in assessing the affected tissues and guiding fine-needle aspiration of fluid accumulations in the involved tendon sheaths. The diagnosis was confirmed microbiologically in each case., (Copyright 2003 Wiley Periodicals, Inc. J Clin Ultrasound 31:159-162, 2003)

Objective: To analyze the role of transrectal ultrasound in the diagnosis of diverticula of the female urethra., Methods/results: Transrectal ultrasound assessment was performed with a biplanar 5 MHz probe and translabial ultrasound was performed with a 7 MHz linear or 3.5 MHz sectorial transducer in 9 women suspected to have urethral diverticula. Cystourethrography was also performed in three patients. Eleven diverticula were found in these 9 patients., Conclusions: The incidence of diverticula of the female urethra has been reported to range from 0.5-6%. Diagnosis is confirmed by urethroscopy or imaging methods. Transrectal ultrasound is the method of choice in the assessment of urethral diverticulum.