A case of rectal villous tumor with shortness of breath in a 70‐year‐old woman—Uncommon symptom of McKittrick‐Wheelock syndrome

Diagnosis of McKittrick-Wheelock syndrome (MWS) is sometimes difficult because the symptoms are sometimes nonspecific. Physician should be considered MWS in case of severe hyponatremia and hypokalemia are accompanied by prolonged mucous diarrhea.