Diagnosing cranial fasciitis based on distinguishing radiological features

Area of Science:

• Pediatric Radiology
• Skeletal Pathology
• Surgical Oncology

Background:

• Primary skull lesions in children are rare, typically benign, and present as painless masses.
• Common pediatric skull lesions include epidermoid, dermoid, and Langerhans cell histiocytosis.
• Cranial fasciitis is infrequently considered in the differential diagnosis and often misdiagnosed.

Observation:

• This study retrospectively reviewed four pediatric patients diagnosed with cranial fasciitis via histopathology.
• Lesions presented as firm, non-tender masses, with some cases linked to trauma, vacuum extraction, or prior craniectomy.
• Radiological findings included lytic bone lesions with specific MRI characteristics indicating fibrous and myxoid components.

Findings:

• Histopathological examination confirmed proliferating fibroblasts within a myxoid matrix.
• Cranial fasciitis is a benign, rapidly growing skull lesion in the pediatric population.
• The lesion is histologically similar to nodular fasciitis.

Implications:

• Recognizing the clinical and radiographic features of cranial fasciitis can aid in differentiating it from other skull lesions.
• Earlier and accurate diagnosis of cranial fasciitis can lead to timely and appropriate intervention.
• Understanding the etiology, including potential links to trauma or prior surgery, is crucial for diagnosis.