Primary hydatid disease of muscle is very rare. This was encountered in the muscles of posterior triangle of the neck in a 12-year-old boy. Hydatid Cyst of neck was excised and was followed by albendazole for six weeks. Rarity of this disease in muscles warrants the need for this case report.

Background: Acute abdominal pain is a common complaint among emergency department patients. Diagnostics of one of the most common pathologies behind acute abdominal pain, acute appendicitis, has radically changed over the last decades. Methods: The source of data was from pretested proforma which takes into account clinical history, general physical examination, relevant investigations, imaging modalities. Results: In our study appendix diameter test sensitivity was 95.02%, specificity was 86.24 %, positive predictive value was 97.24%, negative predictive value was 64.66% and diagnostic accuracy was 94.00%.              Conclusion: Measuring appendix diameter by USG pre-operatively reducing the rate of negative explorations Keywords: Appendix diameter, Appendectomy, negative explorations