Fibromatose digital infantil: relato de caso / Infantile digital fibromatosis: case report

Introdução: A fibromatose digital infantil é uma proliferação nodular, assintomática, rara e benigna do tecido fibroso, que ocorre quase exclusivamente na região dorsal e lateral dos dedos das mãos e pés. O artigo relata um caso de fibromatose digital infantil, também conhecida como tumor de Reye. Relato de Caso: Trata-se de um caso diagnosticado por meio de exames clínico, de imagem e histopatológico. O paciente apresentou-se ao Setor de Ortopedia do Hospital, queixando-se de uma lesão nodular, eritematosa, indolor, no segundo pododáctilo do pé esquerdo, existente havia quatro anos. Durante o exame físico, notava-se uma deformidade no II pododáctilo, causada por uma lesão nodular, eritematosa, indolor, de aproximadamente 1,5 cm, que não acarretava alterações funcionais. O exame de ultrassom revelou a presença de uma imagem nodular sólida, hipoecogênica, envolvendo o tendão do extensor do II pododáctilo na falange média. O diagnóstico inicial era de fibroma ou sinovioma. Pelas características clínicas da lesão, por seu tempo de evolução e pelos achados de imagem, a equipe optou por uma biópsia. No entanto, devido ao pequeno tamanho da lesão, sendo a biópsia aberta, realizou-se a exérese cirúrgica. O exame histopatológico confirmou o diagnóstico de fibromatose digital infantil. Conclusão: Esse tumor constitui uma entidade clínica rara, que deve ser diferenciada de outras lesões encontradas nos dedos das mãos e dos pés. O diagnóstico correto raramente é feito antes da operação, devido, principalmente, à falha em reconhecer essa entidade. Por essa razão, é essencial considerar essa lesão em diagnósticos diferenciais.

Introduction: Infantile digital fibromatosis, also known as Reye tumor, is a rare, asymptomatic, benign nodular proliferation of fibrous tissue, which occurs almost exclusively in the dorsolateral region of the fingers and toes. This article reports a case of infantile digital fibromatosis. Case report: This case was diagnosed by clinical, imaging, and histopathological examination. The patient presented at the rthopedic Department of our hospital, with a 4-year history of a painless, erythematous nodular lesion on the econd toe of the left foot. On physical examination, a deformity of the second toe caused by a nodular, erythematous, painless lesion of approximately 1.5 cm diameter was noted; the lesion did not result in functional changes. Ultrasound examination revealed a solid, hypoechoic nodule involving the extensor tendon in the middle phalanx of the second toe. The initial diagnosis was fibroma or synovioma. Due to the clinical characteristics of the lesion, its evolution, and the imaging findings, the team chose to perform a biopsy. However, due to the small size of the lesion, upon open biopsy, surgical excision was performed. Histopathological examination confirmed the diagnosis of infantile digital fibromatosis. Conclusion: Infantile digital fibromatosis is a rare clinical entity, which should be differentiated from other lesions found in the fingers and toes. The correct diagnosis is rarely made pre-operatively, due mainly to a failure to recognize this entity. For this reason, it is essential to onsider this lesion in the differential diagnosis of digital nodules.

A Case of Infantile Digital Fibromatosis in a 12-Year-Old Child, and This Was Treated with a CO2 Laser / 대한피부과학회지

Infantile digital fibromatosis is a rare benign fibrous tumor that may typically present as a solitary or multiple lesions on the fingers and toes with the histopathological features of fibroblasts with intracytoplasmic inclusion bodies. It commonly presents at the time of birth or it develops within the first year. We reported here on a case of a 12-year-old female with a solitary asymptomatic dome-shaped, firm erythematous nodule on the left 5th finger of 3 years duration. The lesion was histopathological diagnosed as infantile digital fibromatosis. We treated the lesion with a CO2 laser and recurrence was not identified during the 10-month follow-up period.

A Case of Infantile Digital Fibromatosis

We report a case of infantile digital fibromatosis in a 34 month-old boy, who presented with a painless subcutaneous tumor on the medial aspect of the left third toe. A histological examination showed scattered small, round eosinophilic inclusion bodies in the cytoplasm of the tumor cells, which was consistent with infantile digital fibromatosis. A'immunohistochemical study revealed that desmin, a-smooth muscle actin, and vimentin were clearly positive in the cytoplasm of the tumor cells, but the inclusions themselves showed negative staining, thus indicating a hollow-like staining pattern. Electron microscopy showed either well-defined or ill-demarcated dense bodies in the cytoplasm of the tumor cells. In some areas, small vesicles and intracellular organells were observed' in the inclusions. In the course of conservative treatment, a new lesion developed on the lateral aspect of the left third toe, seven months after the appearance of the initial lesion.

A case of Infantile Digital Fibromatosis Locaated on Hypothenar Area Showing Spontaneous Regression

Infantile digital fibromatosis(IDF) is a rare, benign fibrous tumor, first described in 1965 by Reye. IDF may occur single or multiple lesions exclusively on the fingers or toes, rare occurrence outside the digit have been reported. This tumor grow slowly and may adhere to the deeper tissue, and may lead to deformity of the digit, but do not distant metastasis or dissemination. There is a marked tendency for recurrence after surgical excision. Up to now, only 6 cases have been reported in the literature showing spontaneous regression. We experienced a case of infantile digital fibromatosis located on hypothenar area at birth. Also that spontaneous regressed at 13 months of age. We reported a case of IDF showing spontaneous regression with brief review of related literature.

A Case of Infantile Digital Fibromatosis Treated with Skin Graft / 대한피부과학회지

Infantile digital fibromatosis is a rare benign tumor on the fingers and toes of infants and childhood which is characterized by fibroblastic proliferation. Usually the lesions occur singly or severally on the dorsal or lateral aspects of the distal phalanges of the toes and fingers. The thumb and great toe are usually spared. These asymptomatic, firm, red, smooth nodules, some lcm diameter, occur during the first year of life. Forty-seven percent occur in the first month of life. This disease can occur after trauma. The lesions do not metastasize. Occasionally, spontaneous regression has been reported. After excision, recurrence can be possible. A 2 years old female infant had three large bean sized erythematous masses on the left 2,3,4th fingers. The erythematous aacule was developed at 6 months old and grew slowly. We could find inclusion body stained bright red with Massons trichrome and purple with PTAH in cytoplasm of fibroblast. The patient was treated with a simple excision followed by a skin graft. During 5 rnonths after operation, recurrence was not occurred.

Two Cases of Infantile Digital Fibromatosis ; Recurred or Regressed Spontaneously / 대한피부과학회지

Infantile digital fibromatoais is a rare benign tumor on fingers and toes of infants and childhood characterized by fibroblaatic proliferation. A 6 months old male infant had a bean sized, flesh nodule on th left 3rd finger. The lesion was noted at 3 days after birth and surgically removed at 7 months old, However, a new lesion developed at the margin of the ald lesion 2 months later. The second patient was a 21 months old female who had two bean sized, flesh nodules on the right 4th snd 5th fingers. The lesion was first noted at 12 months and regressed spontaneously at 30 months without specific interventiona. Histopathological examination of the two cases showed eosinophiric ntracytoplasmic inclusion bodies, charateristic for infantile digital fibromatosis.