Back to search
Publication

Next-generation sequencing assisted diagnosis of a case of leprosy misdiagnosed as erythema multiforme

Abstract

Abstract

Backgroud: Leprosy is a chronic infectious disease caused by Mycobacterium leprae, mainly transmitted through the droplets from the nose and mouth of patients with untreated leprosy. Owing to no specific serological markers and clinical manifestations, leprosy can be easily confused with other skin lesion-related diseases and is difficult to distinguish. Case presentation: This study introduces and summarises the diagnosis and treatment process of leprosy, which was misdiagnosed in the present patient as erythema multiforme for a long time. A 43-year-old female was admitted to our hospital because of "repeated fever with superficial lymphadenopathy and systemic rash in May." The diagnosis of the patient was based on the two main clinical characteristics of superficial lymphadenopathy and systemic pleomorphic erythema, using a combination of multiple samples of lymph nodes and skin, routine pathological examination, immunohistochemistry, acid-fast, silver hexamine, periodic acid-Schiff (PAS) staining, and second-generation gene sequencing of fresh biopsy tissue. The patient was treated with dapsone, rifampicin, and chlorphenamine at the Institute of Dermatology and Venereal Diseases. After treatment for one year, her temperature returned to normal, the area of facial erythema decreased, and the volume of axillary lymph nodes gradually decreased. Conclusions: In conclusion, special pathological staining and second-generation gene sequencing showed promising advantages in distinguishing leprosy from other skin lesion-related diseases.

More information

Type
Miscellaneous