Confused subcutaneous nodules in children: Differential diagnosis of pilomatricoma in children

Abstract

BackgroundPilomatricoma is a common but easily misdiagnosed tumor in children.AimsTo differentiate pilomatricoma from other common subcutaneous nodules in children.Patients/MethodsMisdiagnosed subcutaneous nodules in four children were recorded.ResultsA red mass on a 7‐year‐old boy's head which had been misdiagnosed pyogenic granuloma was proved to be pilomatricoma. A red mass on an 8‐month‐old boy's face which had been misdiagnosed infantile hemangioma also turned to be pilomotricoma. A red mass on a 21‐month‐old girl's breast, which had been misdiagnosed pilomatricoma, was proved to be infantile myofibroma. A subcutaneous nodule under a 13‐month‐old girl's armpit, which had been misdiagnosed pilomatricoma, turned to be BCG‐associated lymphadenitis.ConclusionsWhen a child with a subcutaneous nodule attends, pilomatricoma, vascular tumors, fibrous tumors, and BCG‐associated lymphadenitis should be considered.

Unusual presentation of pilomatricoma: A case report and comprehensive review of the literature

“…In these cases, biopsy and histopathological examination are crucial for diagnosis. The pathological appearance of the lesion includes basophilic cells and shadow cells, potentially accompanied by calcification, hemorrhage, and variable lymphocyte infiltration 4 …”

“…The pathological appearance of the lesion includes basophilic cells and shadow cells, potentially accompanied by calcification, hemorrhage, and variable lymphocyte infiltration. 4 In this study, we present the case of an 8-year-old girl with a large and unusual nodular lesion on her forearm. The lesion had been gradually growing for 6 months prior fects the head, upper limbs, and lower limbs.…”