Hydatid cyst (HC) is a disease that occurs due to the parasite Echinococcus (EC) and the most typical infection in humans with hydatid disease is caused by the species granulosus. The most frequent site for cyst development is the liver, followed by the lung which is the second most common location.Therefore, this case report highlights a case of a 75-year-old male who presented with chief complaints of left-sided chest pain, dyspnoea, cough and mucoid expectoration since one month and was initially thought as empyema. A diagnostic assessment was performed involving computed tomography suggested possibility of a hydatid cyst. Serological tests positive for Echinococcus granulosus. The treatment parameters involved both surgical and medical approaches. Thoracotomy was performed along with the postoperative medical treatment that mainly involved antihelminthics (Albendazole) and patient recovered well with treatment. This report highlights that large hydatid cysts can be surgically removed with good outcomes and the importance of realizing that the disease is a burden to public health and is much neglected.