“…In a survey of the literature, several cases of CSH in various lymphoproliferative B-cell disorders were found; all of them showing plasma cell differentiation and the production of different classes of immunoglobulins. [1][2][3][4][5][6][7][8][9]11,13,14,18,[23][24][25][26][27][28][29][30] The diseases associated with CSH include MM, light-chain disease, solitary plasmacytoma, lymphoplasmacytoid lymphoma and others. In almost all cases (including this one) the light chain found associated with CSH is kappa, this contrasting with the fact that the lambda type of light chain is found more frequently in cases of amyloid deposition.…”