Clinical manifestations of Behçet’s disease in a large cohort of Chinese patients: gender- and age-related differences

Malignant atrophic papulosis: Two case reports

BACKGROUND

Malignant atrophic papulosis is a rare and potentially lethal thrombo-occlusive microvasculopathy characterized by cutaneous papules and gastrointestinal perforation. The precise pathogenesis of this disease remains obscure.

CASE SUMMARY

We describe the case of a 67-year-old male patient who initially presented with cutaneous aubergine papules and dull pain in the epigastrium. One week after symptom onset, he was admitted to the hospital for worsening abdominal pain. Exploratory laparotomy showed patchy necrosis and subserosal white plaque lesions on the small intestinal wall, along with multiple perforations. Histological examination of the small intestine showed extensive hyperemia, edema, necrosis with varying degrees of inflammatory reactions in the small bowel wall, small vasculitis with fibrinoid necrosis and intraluminal thrombosis in the mesothelium. Based on the mentioned evidence, a diagnosis of malignant atrophic papulosis was made. We also present the case of a 46-year-old man with known cutaneous manifestations, abdominal pain, nausea and vomiting. His physical examination showed positive rebound tenderness. A computed tomography scan revealed free intraperitoneal air. He required surgical intervention on admission and then developed an esophageal perforation. He ultimately died of a massive hemorrhage.

CONCLUSION

In previously published cases of this disease, the cutaneous lesions initially appeared as small erythematous papules. Subsequently, the papules became porcelain-white atrophic depression lesions with a pink, telangiectatic peripheral rim. In one of the patients, the cutaneous lesions appeared as aubergine papules. The other patient developed multiple perforations in the gastrointestinal tract. Due to malignant atrophic papulosis affecting multiple organs, many authors speculated that it is not a specific entity. This case series serves as additional evidence for our hypothesis.

Behçet's Syndrome in a Chinese Pedigree of NLRP3-Associated Autoinflammatory Disease: A Coexistence or Novel Presentation?

Objectives:NLRP3-associated autoinflammatory disease (NLRP3-AID) and Behçet's syndrome (BS) both belong to autoinflammatory diseases and rarely co-occur. Here we reported a Chinese pedigree of NLRP3-AID presented with BS.

Methods: We recorded a Chinese pedigree of NLRP3-AID presented with BS. Whole-exome sequencing was performed to find the hereditary susceptibility gene, and Sanger sequencing was performed on a consecutive cohort of 30 BS patients. We also reviewed the English literature on vasculitis associated with NLRP3-AID.

Results: The proband was a 45-year-old Chinese Han woman. She and her 12-year-old daughter presented with recurrent fevers, cold-induced urticaria, oral, and genital ulcers, conjunctivitis, uveitis, optic atrophy, erythema nodosum, headache, and hearing loss. They were initially suspected of having BS, and both responded poorly to corticosteroids and immunosuppressants, while anti-TNF therapy was moderately effective. Pedigree analysis revealed another four relatives with similar symptoms, and a heterozygous NLRP3 gene mutation c.1316C>T, p.Ala439Val was identified by whole-exome sequencing and Sanger sequencing. However, we did not discover NLRP3 gene mutation by Sanger sequencing in a confirmative cohort of 30 BS cases. A few case reports of vasculitis coexisting with NLRP3-AID, including a case of glomerulonephritis, and five cases of retinal vasculitis, were summarized through literature review.

Conclusions: Our study is the first report of NLRP3-AID associated with BS. The coexistence of NLRP3-AID and BS reveals the extensive heterogeneity of the pathogenesis of systemic autoinflammatory diseases and calls for specific therapeutics.

Patients characteristics in Behçet's Syndrome and their associations with major organ involvement: a single-centre experience of 2118 cases

Objectives: To evaluate the demographic and clinical characteristics of patients with Behçet's syndrome (BS), and to define their associations with the presence of major organ involvement (MOI).Method: Medical records of 2118 patients (964 males, 1154 females) were analysed retrospectively. MOI was defined as the presence of at least one of vascular, eye, nervous, or gastrointestinal system involvement. Univariable and multivariable binary and ordinal logistic regression analyses were applied to assess the factors that were potentially associated with MOI.Results: The mean ± sd age at diagnosis was 30.5 ± 9.4 years. Genital ulcer and joint involvement were more common in females (both p < 0.001), while MOI was more frequent in males (p < 0.001). Genital ulcer (p < 0.001) and vascular involvement (p = 0.006) were more common in patients with a younger age at diagnosis, while joint involvement was more common in older patients. A total of 1097 patients (51.8%) had at least one MOI, 322 (15.2%) at least two MOIs, and 48 (2.3%) at least three MOIs. Male gender, smoking history, and absence of genital ulcer were significantly associated with MOI in multivariable binary logistic regression. Multivariable ordinal regression analyses confirmed the association between MOI and male gender and smoking, but not the protective effect of genital ulcers. In both regression analyses, we found no significant effects of age, human leucocyte antigen-B51, skin involvement, or joint involvement on MOI.Conclusion: Male gender and positive smoking history have a significant influence on the presence of MOI in patients with BS.