Lump on Back: A Rare Case of Parosteal Lipoma of Scapula

Table 1

Types of parosteal lipoma based on degree of chondroid modulation and endochondral ossification [1, 3].

No ossification or chondroid modulation	Lipoma rests directly on the cortex without cartilage or bone elements
Pedunculated exostosis mimic	Narrow bony stalk with a lucent lipomatous cap
Sessile exostosis	Densely ossified broad-based osteochondromatous element beneath the lipomatous cap
Patchy chondroosseous modulation	Foci of calcification, cartilage, or bone throughout the lipomatous mass