Janusz Adam Adamski descended the peak on the Nepali side of the mountain that straddles the border with China.
Spaniard Kilian Jornet Burgada summited Mount Everest in 26 hours, the fastest-known time.
An Australian climber also died while approaching the summit and a Slovakian climber perished in the so-called “death zone.”
The calls comes after an 85-year-old man had a heart attack on the mountain side and died.
Imja Tsho has been rapidly expanding due to climate change.
A Dutch man and an Australian woman died while descending from the summit.
Chinese border patrols lurk on the Tibetan side, ready to shoot anyone illegally crossing the pass.
The avalanche was triggered by the 7.9-magnitude earthquake that has left thousands dead in Nepal.
"The toll could go up, it may include foreigners as well as sherpas," an official said.
The Army is setting out to deal with Everest’s notorious trash problem.
The government vowed safety improvements after dozens die last year, but tour operators say the measures aren’t enough.
The successful climb highlight the tragedies that have recently befallen climbers, and their guides, on the Earth's highest peak
"There was a big chunk of snow that fell over us and swept us away. It looked like clouds, all white," a survivor said
"They were very strong and skilled climbers. It is a natural disaster and no one could do anything about it," the owner of a hiking group said