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The scrotal wall may be involved in a variety of pathologic processes. Such lesions may rise primarily from the layers of the scrotum or may be due to a process arising from scrotal content. Imaging is not needed in most cases, but it may be useful for making such differentiations and for evaluation of possible involvement of the testes and epididymides in cases of primary wall abnormalities. This pictorial essay will show the imaging findings observed in a variety of pathologic conditions affecting the scrotal wall, both common and unusual ones, with an emphasis on clinically relevant findings and features that lead to a specific diagnosis., (© 2017 by the American Institute of Ultrasound in Medicine.)

Placental adhesion disorder (PAD) comprises placenta accreta, increta and percreta lesions; these are classified according to the depth of uterine invasion. Although PAD is considered a rare condition, its incidence has increased 10-fold in the last 50 years. Ultrasound is the primary imaging modality for the assessment of the placenta and in the majority of cases, it is sufficient for diagnosis; however, when ultrasound findings are suspicious or inconclusive, MRI is recommended as an adjunct imaging technique. Numerous MRI features of PAD have been described, including dark intraplacental bands, disorganized intraplacental vascularity and abnormal uterine bulging. This pictorial review describes and illustrates these characteristics and discusses their implications in planning delivery. In addition, we present a series of "pitfall" cases to aid the interpreting radiologist and discuss management of PAD. PAD is a clinical and diagnostic challenge that is encountered with increasing frequency, requiring a cohesive multidisciplinary approach to its management.

Objectives: The subcommittee on scrotal imaging, appointed by the board of the European Society of Urogenital Radiology (ESUR), have produced guidelines on imaging and follow-up in testicular microlithiasis (TML)., Methods: The authors and a superintendent university librarian independently performed a computer-assisted literature search of medical databases: MEDLINE and EMBASE. A further parallel literature search was made for the genetic conditions Klinefelter's syndrome and McCune-Albright syndrome., Results: Proposed guidelines are: follow-up is not advised in patients with isolated TML in the absence of risk factors (see Key Points below); annual ultrasound (US) is advised for patients with risk factors, up to the age of 55; if TML is found with a testicular mass, urgent referral to a specialist centre is advised., Conclusion: Consensus opinion of the scrotal subcommittee of the ESUR is that the presence of TML alone in the absence of other risk factors is not an indication for regular scrotal US, further US screening or biopsy. US is recommended in the follow-up of patients at risk, where risk factors other than microlithiasis are present. Risk factors are discussed and the literature and recommended guidelines are presented in this article., Key Points: • Follow up advised only in patients with TML and additional risk factors. • Annual US advised for patients with risk factors up to age 55. • If TML is found with testicular mass, urgent specialist referral advised. • Risk factors - personal/ family history of GCT, maldescent, orchidopexy, testicular atrophy.

Sickle cell disease involves long bones in the form of infection or subperiosteal collections. Rare pseudoaneurysm/aneurysm formation is also known to occur in the intracranial and visceral territories. We report a small subperiosteal pseudoaneurysm that developed within a subperiosteal abscess in the tibia in a patient with sickle cell disease. This case adds to the known spectrum of musculoskeletal abnormalities resulting from this condition., ((c) 2009 Wiley Periodicals, Inc.)

Background: A 15-year-old boy presented to hospital with tenderness in his left loin and hypochondrium, and frank hematuria; he was hemodynamically stable. The patient was overweight and had fallen onto his left flank from his bicycle 2 h previously., Investigations: Physical examination, routine blood tests, contrast-enhanced CT of the abdomen and pelvis, renal MRI and percutaneous transfemoral angiography., Diagnosis: Grade V blunt renal trauma, grade IV splenic injury and left renal vein thrombosis., Management: The patient received conservative management with supportive measures followed by percutaneous transfemoral angiography and embolization of the injured left kidney. He recovered well and was able to resume normal activities.