Tumors and cysts can be a cause for concern, although some are harmless,Medical News Todayexplains.

Cysts are often filled with air or with another jot down of cell, forming a fluid.

Tumors are masses of one pop in of cell.

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Anyone concerned by a lump or growth should see a doctor, the medical news outlet informs.

Season five ofThe KardashianspremieresMay 23on Hulu

Nevertheless, Kylie is not pregnant, the source affirmed.

The trailer left viewers divided

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Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

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Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer

Fans Stunned After Kris Jenner Reveals Tumor In New The Kardashians Trailer