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The objective of the study was to determine whether Hounsfield Unit density would differentiate between cholesteatoma and other causes of opacification, such as granulation tissue in previously operated ears. Temporal bone computer tomography (CT) scans of 47 patients, who had revision mastoid surgeries, were evaluated retrospectively. A circular 5 mm2 region of interest (ROI) was placed at aditus ad antrum to measure Hounsfield Unit (HU) density. There was no statistically significant difference between cholesteatoma and non-cholesteatoma groups in terms of HU densities. Intraclass correlation coefficient test showed an intraclass correlation of 0.41 between measurements done by radiologists and otorhinolaryngologists, which showed poor reliability. Contrary to previous studies in unoperated ears, in operated ears HU density at aditus level cannot be a reliable diagnostic adjunct. Moreover, when it is considered that interrater reliability was poor between radiologists' and otolaryngologists' measurements, a need for further studies arise to solidify findings in this study. Key Words: Cholesteatoma diagnostic imaging, Middle ear surgery, Revision mastoidectomy.

Objectives: We aimed to remind and emphasize the importance of male breast cancer with radiological and histopathological results of the patients diagnosed in our institution., Methods: Men who had proven breast cancer by histopathological analysis between February 2010-April 2018 were reviewed retrospectively. The mammographic, ultrasonographic, magnetic resonance and positron-emission-tomography imaging features and histopathological results of the masses were noted., Results: Twenty-five men were included in this study. Mean age of the patients was 62.9 (min:42; max: 82) with a mean size of lesions was 26.4 mm (min:10 mm; max: 70 mm). All the lesions were presented as a palpable mass. According to imaging features of the five patients who had mammography, all the four patients were presented as a mass but one patient as asymmetrical density. According to imaging features of the 20 patients who had an ultrasound, 16 (80%) lesions were presented as hypoechoic solid masses with irregular margins, while four (20%) were presented as complex-cystic masses with irregular margins. All the patients were diagnosed as invasive ductal cancer with luminal subtype by histopathological analysis., Conclusion: Even at young ages, the palpable lesion may be the only symptom of male breast cancer. Male breast cancer is generally presented as retroareolar mass and detected in advanced stages, probably due to low awareness and lack of screening programme. Invasive ductal cancer is the most common type of male breast cancer with the luminal subtype., Competing Interests: Conflict of Interest: None declared., (Copyright: © 2019 by The Medical Bulletin of Sisli Etfal Hospital.)

Although Langerhans cell histiocytosis (LCH) may arise from any bone, flat bones (skull, ribs, scapula, clavicle, and mandible) are more commonly involved.The overall reported incidence of scapular involvement by LCH is nearly 3% in the literature. Intra-lesional corticosteroid injection can be given for lesions that cause pain or postural deformity. We, herein, report a 26-year male with scapular LCH who was suffering from right shoulder pain and right arm weakness. The patient received intra-lesional methylprednisolone under CT-guidance for treatment. On follow-up imaging, almost total regression was observed. We suggest that percutaneous CT-guided intra-lesional steroid injection is an efficient method for the treatment of LCH located in bone. Key Words: Bone, Langerhans cell histiocytosis, Local treatment, Corticosteroid.