This epithelioid malignant peripheral nerve sheath tumor shows loss of INI1/SMARCB1, a feature of this type of neoplasm....

Autoimmune enteropathy pattern of injury. What is absent can be as important as what is present in gastrointestinal biopsies. Missing in...

Probably as a result of intussusception, this benign Peutz-Jeghers polyp has undergone impressive enteritis cystica profunda changes that...