alpha-heavy chain disease https://www.malacards.org/card/alpha_chain_disease https://www.malacards.org/card/alpha_heavy_chain_disease_2 alpha chain disease Alpha-heavy chain disease (alpha-HCD) is a type of HCD characterized by the production of incomplete monoclonal alpha-heavy chains without associated light chains. Alpha-HCD is considered to be a subtype of immunoproliferative small intestinal disease (IPSID). The clinical presentation includes chronic diarrhea with evidence of malabsorption. Mediterranean abdominal lymphoma ICDO:9764/3 Orphanet:100025 Mediterraneanl lymphoma MEDGEN:7039 NCIT:C3132 DOID:0060126 GARD:0019742 Immunoproliferative small intestinal disease IPSID MESH:D007161 Seligmann's disease Mediterranean lymphoma MONDO:0015045 Alpha heavy chain disease ICDO:9760/3 icd11.foundation:680227490 Alpha-HCD UMLS:C0021071 heavy chain disease