Background: The eyebrows play an important role in emotional facial expressions, nonverbal communication, and facial esthetics. A comprehensive understanding of the mechanisms underlying eyebrow aging is vital in allowing plastic surgeons to appropriately address these age-related changes and to recreate an aesthetically desirable outcome for patients seeking brow rejuvenation. The aim of this study is to summarize the current literature on eyebrow height changes with aging. Methods: A comprehensive search was conducted across several databases to identify all published studies that reported changes of eyebrow position or height with aging, from 1946 to January 2019. Studies that reported eyebrow position at the level of medial canthus, mid-pupil, and lateral canthus were included in a meta-analysis. Results: A total of 346 articles were initially identified, of which 19 met our inclusion criteria. Of 3,634 patients who were identified, 2,237 (64%) were females and 1,274 (36%) were males. Eyebrow height showed significant increase with aging at the level of medial canthus (mean difference 1.4 mm; 95% CI: 0.22–2.59; P = 0.02), and the level of mid-pupil (mean difference 1.17 mm; 95% CI: 0.54–1.8; P = 0.0002). However, no significant difference was found at the level of lateral canthus (mean difference 0.19 mm; 95% CI: −0.87 to 1.25; P = 0.72). Conclusions: Based on the reviewed literature to date, the medial eyebrow height increases with age, whereas it remains stable at the level of the lateral canthus. These results should be considered when considering eyebrow rejuvenation.

Background Benign Multicystic Peritoneal Mesothelioma (BMPM) is one of the rarest diseases in medicine with only more than 200 cases worldwide. This paper aims to report a case of Benign Multicystic Peritoneal Mesothelioma that strangely arose from the liver and was long treated as Hydatid cyst. The case also had many risk factors including asbestos exposure that had not yet been linked with Benign Multicystic Peritoneal Mesothelioma. Case presentation We report a case of a 62 years old male with a history of a perforated peptic ulcer and a cystic mass in the liver that was misdiagnosed as hydatid cyst 7 years ago. He presented with generalized abdominal pain and bloating. Image studies showed many cystic formations filled with clear fluid. An en bloc surgery was performed and a pathologic study showed a multiloculated mass lined by flat or cuboidal epithelium leading to the diagnosis of BMPM. A follow up was scheduled after 3 months revealed total recurrence. Conclusion BMPM resembles many other cystic lesions in the abdomen and should be taken into consideration when dealing with nontypical cystic formations. Its diagnostic and treatment methods are still hazy making this disease difficult to approach.

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Background: Omental alveolar rhabdomyosarcoma in adults is a very hazardous tumor. Its pathogenesis is still under discussion and many studies consider it different from its pediatric counterpart. This tumor can arise from any soft tissue in the body thus it can be found anywhere, but it's found mainly in the head and neck region. Omentum as the primary site was reported only by six studies in the English literature before. In this paper we aim to report the seventh case and perform a review of all paperworks that pertains to this topic. Case Presentation: we present a case of a 52 years old smoker male. His medical record was not significant. He presented with dull pain in the right iliac fossa. He had suffered from generalized abdominal pain in the past several months but this time the pain was unbearable. On examination he had a palpable mass in the region. CT revealed a mass arising from omentum. A laparotomy was performed and biopsies were taken, stained, examined and led to the diagnosis of ARMS. The patient was put on radio and chemo-therapy. He missed some appointments after that. When he was admitted 2 months later he was suffering from neurological symptoms which after performing lumbar puncture turned out to be tumor metastasis. Regrettably the patient died after his second cycle of chemotherapy.Conclusion: Adult rhabdomyosarcomas are rare tumors that can arise from any soft tissue including omentum and should be taken into consideration when we deal with primary tumors originating from that area. The studies and our understanding for this neoplasm is still so limited and should be expanded widely.

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