UNASSIGNED: Mucosa-associated lymphoid tissue (MALT) @entity96 is a very rare condition and thus the diagnosis may be challenging. The clinical presentation is usually variable, ranging from minimal clinical symptoms to severe @entity3851 . In this paper, we describe the clinicopathologic findings in two cases of primary @entity1074 . One case is an 80-year-old female with no underlying @entity409 and the second case is a 30-year-old female with @entity775 complicated by @entity1074 . In both specimens, there was diffuse infiltration of atypical B-lymphocytes that were positive for @entity2225 and @entity7571 , but negative for @entity5893 , @entity12910 and @entity2282 . There were occasional lymphoepithelial lesions involving the hepatocytes or bile ducts. Polymerase chain reaction analysis showed @entity2015 heavy chain gene rearrangement in both cases. The first case was treated with surgery but developed pulmonary recurrence a year after complete resection but went into remission following treatment with rituximab. A second recurrence occurred in the right parotid gland 7 years later, which was treated with @entity13851 . The second case was effectively treated with rituximab. To our knowledge, the second case is the first reported case linked to @entity775 .

Primary mucosa-associated XXXX : A report of two cases and review of the literature.

@entity7571 :: ('973', 'Gene') :: ['CD79a'] @entity13851 :: ('MESH:C552946', 'Chemical') :: ['idelalisib'] @entity96 :: ('MESH:D008113', 'Disease') :: ['lymphoma of the liver'] @entity1074 :: ('MESH:D018442', 'Disease') :: ['MALT lymphoma', 'hepatic MALT lymphoma'] @entity409 :: ('MESH:D008107', 'Disease') :: ['chronic liver disease'] @entity2225 :: ('54474', 'Gene') :: ['CD20'] @entity5893 :: ('921', 'Gene') :: ['CD5'] @entity2282 :: ('4311', 'Gene') :: ['CD10'] @entity12910 :: ('6693', 'Gene') :: ['CD43'] @entity3851 :: ('MESH:D058625', 'Disease') :: ['end stage liver disease'] @entity2015 :: ('MESH:D004406', 'Disease') :: ['monoclonal immunoglobulin'] @entity775 :: ('MESH:D019693', 'Disease') :: ['autoimmune hepatitis']
@entity96 :: (MESH:D008113,Disease) :: ['lymphoid tissue lymphoma of the liver']
