A histological study of peroral jejunal biopsies and resection specimens from patients with malignant histiocytosis of the intestine (MHI) has revealed characteristic lesions consisting of intramucosal histiocytic aggregations which invade surface and crypt epithelium. These lesions are found in 'uninvolved' jejunal mucosa in the presence of obvious tumour elsewhere and also in peroral jejunal ...

Abstract Jejunal adenocarcinoma is a rare type of primary small bowel malignancy. It generally diagnosed at late stages and as surgical finding, with abdominal pain or discomfort being the main associated symptom. Cases presenting perforation are even rarer, especially without disseminated disease. The relationship between cancer coronavirus disease 2019 (COVID-19) still studied, well postsurgi...