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Infantile digital fibromatosis (IDF), also termed inclusion body fibromatosis or Reye's tumor, usually occurs as a single, small, asymptomatic, nodule in the dermis on a finger or toe [1] of infants and young children. [2] IMF is a rare disorder with approximately 200 cases reported in the medical literature as of 2021. [3]
Subtypes of juvenile fibromatosis include: [3] Infantile myofibromatosis: solitary tumors commonly occurring in the head and neck regions; multiple tumors occurring in the skin, subcutaneous tissue, muscles, and/or less commonly bones; or, rarely, tumors occurring in an internal organ(s). [4] Aponeurotic fibroma; Infantile digital fibromatosis
Juvenile hyaline fibromatosis, also termed fibromatosis hyalinica multiplex juvenilis and the Murray–Puretic–Drescher syndrome, an autosomal recessive inherited genetic disease. [9] Infantile digital fibromatosis, also termed inclusion body fibromatosis [10] or Reye tumor [11] Fibroma of tendon sheath [12]
The largest study to date examined 197 cases of FHI. In this study, most individuals presented with a slowly growing, symptomless, subcutaneous mass although rarely these masses were rapidly growing, and/or were tender, painful, warm, and/or were accompanied by skin changes, pigmentation, sweat gland enlargement, and/or increased hair overlaying the tumor.
Infantile myofibromatosis (IMF) is a rare tumor found in 1 in 150,000 to 1 in 400,000 live births. It is nonetheless the most common tumor derived from fibrous connective tissue that occurs primarily in infants and young children.
The cystic fibroma (fibroma cysticum) has central softening or dilated lymphatic vessels. The myxofibroma (fibroma myxomatodes) is produced by liquefaction of the underlying soft tissue. The cemento-ossifying fibroma is hard and fibrous, most frequently seen in the jaw or mouth, sometimes in connection with a fracture or another type of injury.
Diffuse infantile fibromatosis is a rare condition affecting infants during the first three years of life. This condition is a multicentric infiltration of muscle fibers with fibroblasts resembling those seen in aponeurotic fibromas, presenting as lesions and tumors confined usually to the muscles of the arms, neck, and shoulder area [1]: 607 Diffuse infantile fibromatosis is characterized by ...
This condition is characterised by abnormal growth of hyalinized fibrous tissue with cutaneous, mucosal, osteoarticular and systemic involvement. Clinical features include extreme pain at minimal handling in a newborn, gingival hypertrophy, subcutaneous nodules, painful joint stiffness and contractures, muscle weakness and hypotonia.