Qap (Anatomical Pathology) 

QAP Peer Review

AP311
Case History: F/67. Goitre, total thyroidectomy
Intended diagnosis: Extranodal marginal zone B cell lymphoma (MALT lymphoma) with background Hashimoto thyroiditis. Contributed by:JKCC
Code Diagnosis Comment Score
anonymous MALToma (100%) arising from lymphocytic thyroiditis Immunostaining for CD20 is positive in the MALToma area.  100
anonymous Hashimoto thyroiditis with plasmacytoma nil  70
anonymous Extramucosal marginal zone B cell lymphoma of MALT type and Hashimoto thyroiditis nil  95
anonymous Extranodal marginal zone B cell lymphoma (MALT lymphoma) with background Hashimoto thyroiditis (100%). Confirm with immunohistochemical stain for B marker (CD20) and Kappa/ Lambda for light chain restriction.  100
anonymous Extranodal marginal zone B-cell lyphoma of MALT type arising from Hashimoto's thyroiditis Confirm B lineage by IHC.  100
anonymous Low-grade lymphoma (favors MALToma) in background of Hashimoto thyroiditis (100%) nil  100
anonymous Thyroid - Low grade Malignant Lymphoma arising in a background of Hashimoto's thyroiditis 100% To do a panel of lymphoid markers for tumour classification (DDx extranodal marginal zone B lymphoma or lymphoplasmacytic lymphoma)  95
anonymous Hashimoto's thyroiditis and low grade lymphoma, compatible with MALToma nil  100
anonymous Malignant lymphoma consistent with extranodal marginal zone lymphoma of MALT type. 100% nil  80
anonymous Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma), associated with Autoimmune thyroiditis. nil  100
anonymous THYROID, total thyroidectomy - EXTRANODAL MARGINAL ZONE B-CELL LYMPHOMA (MALT lymphoma) in background of HASHIMOTO'S THYROIDITIS. nil  100
anonymous Hashimoto thyroiditis with low grade malignant lymphoma. Perform immunohistochemical stains for B-cell and T-cell. Molecular study including TCR and IgH is also helpful to delineate the monoclonal proliferation of lymphoid cells.  95
anonymous Extranodal marginal zone lymphoma arising in Hashimoto thyroiditis. (100%) nil  100
anonymous malignant lymphoma, favor extranodal marginal zone B-cell lymphoma of MALT-type with plasmacytic differentiation, background of Hashimoto's thyroiditis (100%) perform immunostaining for confirmation  100
anonymous HASHIMOTO’S THYROIDITIS complicated by MALIGNANT LYMPHOMA (100% probability), in favor of MALTOMA. nil  100
anonymous MALT lymphoma complicating lymphocytic thyroiditis nil  95
anonymous Extranodal marginal zone lymphoma of MALT arising from subacute thyroiditis 100% CD20, kappa and lambda light chains, CD10, bcl-6, CD43, CD5, cyclin D1, and bcl-2.  90
anonymous Thyroid - Extranodal marginal zone lymphoma, surrounding thyroid show features suggestive of lymphocytic thyroiditis. nil  95