Common variable immunodeficiency

From Libre Pathology
Jump to navigation Jump to search

Common variable immunodeficiency, abbreviated CVID, is a group of genetic disorders characterized by deficient antibody production.

General

Features:[1]

Labs in a series of 8 patients:[2]

  • IgG 2.5 +/-0.6 g/L.
  • IgA 0.23 +/-0.1 g/L.
  • IgM 0.17 +/-0.1 g/L.

Gross

Duodenum:

  • Nodular mucosa - due to lymphoid hyperplasia.

Microscopic

Features - general:

  • Plasma cells absent (or reduced) - key feature.[1]
  • +/-Lymphoid aggregates.
  • +/-Granulomatous disease ~8-22%.[3]

DDx:

Features by site in the GI tract:[4]

Site Features
Esophagus intraepithelial PMNs & candida +/-abundant intraepithelial lymphocytes
Stomach lack of plasma cells (~2/3 of individuals), lymphoid aggregates (common), +/-lymphocytic gastritis, +/-intraepithelial neutrophils, +/-infections (CMV, H. pylori, cryptosporidium)
Small bowel villous blunting (>80% of individuals), decreased plasma cells (~2/3 of individuals), lymphoid aggregates (~1/2 of individuals), +/-neutrophils + infections (CMV, cryptosporidium)
Large bowel decreased plasma cells, lymphoid aggregates, +/-apparent apoptosis

See also

References

  1. 1.0 1.1 Agarwal S, Smereka P, Harpaz N, Cunningham-Rundles C, Mayer L (July 2010). "Characterization of immunologic defects in patients with common variable immunodeficiency (CVID) with intestinal disease". Inflamm Bowel Dis. doi:10.1002/ibd.21376. PMID 20629103.
  2. 2.0 2.1 Dong, J.; Liang, H.; Wen, D.; Wang, J. (Mar 2016). "Adult Common Variable Immunodeficiency.". Am J Med Sci 351 (3): 239-43. doi:10.1016/j.amjms.2015.12.010. PMID 26992251.
  3. Ardeniz, O.; Cunningham-Rundles, C. (Nov 2009). "Granulomatous disease in common variable immunodeficiency.". Clin Immunol 133 (2): 198-207. doi:10.1016/j.clim.2009.05.001. PMID 19716342.
  4. Daniels, JA.; Lederman, HM.; Maitra, A.; Montgomery, EA. (Dec 2007). "Gastrointestinal tract pathology in patients with common variable immunodeficiency (CVID): a clinicopathologic study and review.". Am J Surg Pathol 31 (12): 1800-12. doi:10.1097/PAS.0b013e3180cab60c. PMID 18043034.