Gamma heavy chain disease: cytological diagnosis of a rare lymphoid malignancy facilitated by correlation with key laboratory findings.

The 2008 World Health Organization (WHO) Classification of Tumours of Haematopoietic and Lymphoid Tissues defines gamma heavy chain disease (gHCD) as a B-cell neoplasm that produces monoclonal gamma immunoglobulin (IgG) heavy chain without corresponding light chains. Since its original description in the 1960s, fewer than 200 cases have been reported… CONTINUE READING