Indra M. Newman,Jae Kim,Laleh Melstrom,Massimo D’Apuzzo,Paul Wong, Underestimating the Burden of Disease in Sarcomatoid Carcinoma of The Lung: A Case Report and Literature Review Global Surgery Case Reports 2019 2733-2535 http://dx.doi.org/10.31487/j.GSCR.2019.01.03 https://www.sciencerepository.org/underestimating-the-burden-of-disease-in-sarcomatoid-carcinoma-of-the-lung-a-case-report-and-literature-review_GSCR-2019-1-103 Abstract: Acute appendicitis is one of the most common emergency surgical procedure, yet atypical presentation sometimes can be challenging for clinician. I present a case of 19-year-old gentleman that initially presented with 1day history of bilateral testicular pain and lower abdominal pain. His past history includes a positive sexual history. Initial ultrasound of the testis showed bilateral orchitis and an equivocal appendix. With a significantly raised inflammatory marker and highly suspicious for appendicitis, a CT scan was obtained which showed perforated appendicitis and the patient underwent laparoscopic appendicectomy with resolution of symptoms after that. We encourage clinician to be aware of this clinical pitfall as patient can sometimes be managed in other department to minimise any delayed diagnosis or any unnecessary procedureKeywords: Pulmonary sarcomatoid carcinoma, sarcomatoid carcinoma of the lung, gastrointesinal metastasis of pulmonary sarcomatoid carcinoma