Cholesterol crystal embolism is a rare and easily overlooked cause of colonic ischemia. The gastrointestinal tract is the third most common organ system affected by cholesterol emboli, second only to kidney and skin. Here we present a catastrophic case of gastrointestinal cholesterol crystal embolism leading to extensive post-operative bowel infarction and ultimately death. For a practicing pathologist, careful attention to the vessels of any ischemic bowel and recognition of the subtle but distinct angular imprint of cholesterol crystals facilitates prompt identification of the atheroemboli. In some cases, early identification may help mitigate further tissue damage. In more acute and severe cases, identification of the cholesterol crystal emboli may be important primarily for documentation of procedural complications.
Ben-HorinS, BardanE, BarshackI, ZaksN, LivnehA. Cholesterol crystal embolization to the digestive system: characterization of a common, yet overlooked presentation of atheroembolism. Am J Gastroenterol. 2003;98(7):1471-9. [https://doi.org/10.1111/j.1572-0241.2003.07532.x]. [PMID:12873565]
FukumotoY, TsutsuiH, TsuchihashiM, MasumotoA, TakeshitaA. The incidence and risk factors of cholesterol embolization syndrome, a complication of cardiac catheterization: a prospective study. J Am Coll Cardiol. 2003;42(2):211-6. [https://doi.org/10.1016/S0735-1097(03)00579-5]. [PMID:12875753]
FriesC, RoosM, GaspertA, et al. Atheroembolic disease: a frequently missed diagnosis: results of a 12-year matched-pair autopsy study. Medicine. 2010;89(2):126-32. [https://doi.org/10.1097/MD.0b013e3181d5eb39]. [PMID:20517183]
GhanemF, VodnalaD, K KalavakuntaJ, et al. Cholesterol crystal embolization following plaque rupture: a systemic disease with unusual features. J Biomed Res. 2017;31(2):82-94. [PMID:28808190]
ImanakaK, KyoS, BanS. Possible close relationship between non-occlusive mesenteric ischemia and cholesterol crystal embolism after cardiovascular surgery. Eur J Cardiothorac Surg. 2002;22(6):1032-4. [https://doi.org/10.1016/S1010-7940(02)00590-0]. [PMID:12467838]
BrulsS, QuaniersJ, TrommeP, LavigneJP, Van DammeH, DefraigneJO. Comparison of laparoscopic and open aortobifemoral bypass in the treatment of aortoiliac disease: results of a contemporary series (2003-2009). Acta Chir Belg. 2012;112(1):51-8. [https://doi.org/10.1080/00015458.2012.11680795]. [PMID:22442910]
YantissRK, CuiI, PanarelliNC, JessurunJ. Idiopathic myointimal hyperplasia of mesenteric veins: an uncommon cause of ischemic colitis with distinct mucosal features. Am J Surg Pathol. 2017;41(12):1657-65. [https://doi.org/10.1097/PAS.0000000000000905]. [PMID:28817406]
LouieCY, DiMaioMA, CharvilleGW, BerryGJ, LongacreTA. Gastrointestinal Tract Vasculopathy: Clinicopathology and Description of a Possible “New Entity” With Protean Features. Am J Surg Pathol. 2018;42(7):866-76. [https://doi.org/10.1097/PAS.0000000000001060]. [PMID:29624512]