E-payment is the key function for any e-business as it is rising exponentially in today's business world as e-business grows. E-payments made it easier for people to survive and helped them save a lot of money and time. Using various forms and devices, our payments are more exciting and convenient to press on your mobile phone and pay for your orders. In order to obtain better results in e-business, it must be linked to e-payments. E-payments have many systems and opportunities in the field of e-business, but it is facing many risks and challenges. This paper presents an overview study for e-payments opportunities, challenges and different risks for e-payments specially fraud as it is one of the most critical threats to e-payments field and it is causing huge losses. Paper also discusses different types of epayments, benefits and the future of e-payment.

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Background In the literature, the reported parotid duct stones that did not respond to the conservative measures are few. The present work reported and described the diagnosis and treatment of a case of impacted parotid duct stone that was surgically removed through minimally invasive transoral per punctum approach. Case presentation On examination of a 27-year-old male with left intermittent parotid swelling and pain for 1 year, a stone was palpated in the left buccal mucosa region near the orifice of the parotid duct. Ultrasonography (US) showed left Stensen’s duct distal stone. Under general anesthesia and oral intubation, the stone measuring about 1 cm in length was felt transversely located (directed at a right angle with the orifice of the duct). A small mucosal incision was done at the upper lateral part of the punctum; pus came out, and then the stone bulged from the orifice and was pushed outside. Recovery was event-less; postoperative paracetamol was sufficient to relieve pain, and the patient was discharged a few hours after the surgery. Conclusion The transoral per punctum excision of an impacted parotid duct stone appears to be a reliable minimally invasive effective and safe procedure. The unfavorable direction of the parotid duct stone might be a cause of failure of the conservative treatment for this stone.