报道１例误诊为蜂窝织炎的孢子丝菌性下疳。其早期皮损表现为左前臂２ｃｍ×８ｃｍ×１２ｃｍ潮红浸润性斑块，中心凹陷，上覆黑褐色厚痂，挤压后有脓汁溢出。曾在当地３次误诊为蜂窝织炎，并切开引流。其后，左上下肢又出现十几个红色结节，遂转来我院。经活检及真菌培养后确诊为孢子丝菌病。给予抗真菌治疗１月，皮损明显好转。 One case of sporotrichosis caused by cellulitis was misdiagnosed. The early lesions showed the left forearm 2cm × 8cm × 12cm infiltration of flushing plaques, central depression, overlying dark brown thick crust, pus overflow after extrusion. Had 3 misdiagnosed as cellulitis in the local and cut open drainage. Subsequently, a dozen red nodules appeared on the left upper and lower limbs, then transferred to our hospital. After biopsy and fungal culture diagnosed as sporotrichosis. Given antifungal therapy in January, the skin lesions significantly improved.