Comorbidities of hidradenitis suppurativa (acne inversa) were reviewed by extracting original and review publications included in MEDLINE, EMBASE and COCHRANE libraries using the terms “hidradenitis,” “Verneuil” and “acne inversa.” Follicular occlusion disorders, inflammatory bowel diseases, especially Crohn disease, spondylarthropathy, other hyperergic diseases, genetic keratin disorders associated with follicular occlusion and squamous cell carcinoma were the most common hidradenitis suppurativa comorbid diseases. A first classification of these major comorbidities and their possible genetic background reveals a list of chromosome loci and genes, which could be hidradenitis suppurativa candidates. Most of these diseases belong to the group of autoinflammatory disorders, where th17 cell cytokines seem to play a central role.
“Two major groups of disorders are possibly comorbid with HS, namely chronic hyperergic inflammatory diseases and acquired and inherited follicular occlusion disorders. Interestingly, the reported inflammatory diseases and acquired follicular occlusion disorders have been previously associated with autoimmune phenomena, while currently with hyperactive neutrophils implicating neutrophil dysfunction.”Acne Inversa Case Study Comorbidity Diagnosis Genetics Pathology Psychology