Primary non-Hodgkin's lymphoma arising in an intramammary lymph node.

Non-Hodgkin's lymphoma (NHL) of the breast may be primary or secondary. Both are rare and there are no morphological criteria to make the differential diagnosis. Benign intramammary lymph nodes are often encountered, but the development of either primary or secondary lymphoma within an intramammary lymph node is extremely rare.

Acute large bowel pseudo-obstruction due to multiple myeloma.

Involvement of the gastrointestinal (GI) tract by multiple myeloma (MM) is extremely rare. The small intestine and stomach are the most frequent sites of spread. We report 1 case of a 61-year-old woman who presented with clinical and radiographic features of an acute large bowel pseudo-obstruction.

Primary anaplastic large cell lymphoma of the kidney.

Primary renal lymphoma is a rare disease. There is still no agreement on its development primarily in this non-lymphoid organ. Some of the reported cases are questionable because of the incomplete staging of extrarenal disease.