Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- Acknowledgment
- Section 1 Head and neck
- Section 2 Thoracic imaging
- Section 3 Cardiac imaging
- Section 4 Vascular and interventional
- Section 5 Gastrointestinal imaging
- Section 6 Urinary imaging
- Section 7 Endocrine - reproductive imaging
- Section 8 Fetal imaging
- Section 9 Musculoskeletal imaging
- Case 82 Clubfoot
- Case 83 Developmental dysplasia of the hip
- Case 84 Legg–Calve–Perthes disease
- Case 85 Slipped capital femoral epiphysis
- Case 86 Langerhans cell histiocytosis: MRI/PET for diagnosis and treatment monitoring
- Case 87 Congenital syphilis
- Case 88 Medial malleolus avulsion fracture
- Case 89 Triplane fracture
- Case 90 Fibrous dysplasia
- Case 91 Chest wall sarcoma
- Case 92 Campomelic dysplasia
- Case 93 Type II collagenopathy (hypochondrogenesis)
- Case 94 Morel-Lavallée lesions
- Case 95 Infantile myofibromatosis
- Case 96 Osteochondritis dissecans of the capitellum
- Index
- References
Case 94 - Morel-Lavallée lesions
from Section 9 - Musculoskeletal imaging
Published online by Cambridge University Press: 05 June 2014
- Frontmatter
- Contents
- List of contributors
- Preface
- Acknowledgment
- Section 1 Head and neck
- Section 2 Thoracic imaging
- Section 3 Cardiac imaging
- Section 4 Vascular and interventional
- Section 5 Gastrointestinal imaging
- Section 6 Urinary imaging
- Section 7 Endocrine - reproductive imaging
- Section 8 Fetal imaging
- Section 9 Musculoskeletal imaging
- Case 82 Clubfoot
- Case 83 Developmental dysplasia of the hip
- Case 84 Legg–Calve–Perthes disease
- Case 85 Slipped capital femoral epiphysis
- Case 86 Langerhans cell histiocytosis: MRI/PET for diagnosis and treatment monitoring
- Case 87 Congenital syphilis
- Case 88 Medial malleolus avulsion fracture
- Case 89 Triplane fracture
- Case 90 Fibrous dysplasia
- Case 91 Chest wall sarcoma
- Case 92 Campomelic dysplasia
- Case 93 Type II collagenopathy (hypochondrogenesis)
- Case 94 Morel-Lavallée lesions
- Case 95 Infantile myofibromatosis
- Case 96 Osteochondritis dissecans of the capitellum
- Index
- References
Summary
Imaging description
A 17-year-old presented with a rapidly enlarging right hip mass after a fall while skateboarding. An MRI was obtained which demonstrated a fluid collection between the subcutaneous tissues and underlying fascia of the right hip. The fluid collection was hypointense on T1-weighted images and contained a hyperintense lobule of fat (Fig. 94.1a). On T2-weighted images with fat suppression, the fluid was hyperintense and the lobule of fat demonstrated suppressed, hypointense signal (Fig. 94.1b). The appearance was considered to be compatible with a Morel-Lavallée lesion. Conservative management was offered, with eventual resolution of the lesion.
A two-year-old male presented with a left thigh mass two weeks after having his left thigh pinned beneath a wheel of a truck. Initial radiographs were negative for osseous fractures. An ultrasound demonstrated an anechoic fluid collection with debris and septations (Fig. 94.2a). A subsequent MRI revealed a fluid collection beneath the subcutaneous tissues and overlying the fascia of the medial left thigh, compatible with a Morel-Lavallée lesion. The fluid collection was noted to be hypointense on T1-weighted images (Fig. 94.2b) and hyperintense on T2-weighted sequences (Fig. 94.2c, d). Rim enhancement was noted (Fig. 94.2e). This lesion similarly resolved with conservative management.
- Type
- Chapter
- Information
- Pearls and Pitfalls in Pediatric ImagingVariants and Other Difficult Diagnoses, pp. 380 - 383Publisher: Cambridge University PressPrint publication year: 2014
References
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