Largest skin cancer screening

According to Official Guinness Records,

The largest skin cancer screening involved 780 participants and was achieved by Kaiser Permanente, San Diego (USA) in San Diego, California, USA, on 4 August 2011.
Patients were screened individually and over 50 biopsies were performed at the event, with many more scheduled for future appointments.

For a complete list of 2011 records, please visit 2011 Guinness Records in United States.

Related Images

Other United States records that might interest you:

• Largest piñata (pinata)
• Largest collection of pizza-related items
• Smallest battery
• Most bounces in a pogo stick marathon (male)
• Shortest donkey
• Tallest cotton plant
• Largest dog biscuit
• Highest vertical height walked on stilts
• Highest score on the Helicopter Game (Flash)
• Most golf holes played in seven days (cart)
• Most expensive hamburger
• Most prolific anthologist of poetry for children