Table 1 Patterns in LCH (LCH, sinusoidal hemangioma like and IPEH-like patterns) and characteristics of the principal structures typical for IA in the lesion, conditioning its morphology (Morphogenic role of IA).
From: Participation of Intussusceptive Angiogenesis in the Morphogenesis of Lobular Capillary Hemangioma
MORPHOLOGIC PATTERNS | Types | LCH | SINUSOIDAL HEMANGIOMA-LIKE | IPEH | ||
|---|---|---|---|---|---|---|
Incidence | 100% | 24.16% | 20.83% | |||
Extension | Extensive | Focal | Focal | |||
PRINCIPAL STRUCTURES TYPICAL FOR IA IN THE LESION | LOOPS | Number | +++ | ++ | ++ | |
Lumen | narrow | +++ | + | + | ||
wide | + | +++ | +++ | |||
Endothelial contacts | +++ | +/− | +/− | |||
Perforation of the endothelial contacts | +++ | +/− | +/− | |||
PILLARS | Number | ++ | ++ | +++ (Myriad) | ||
Predominant size | Small and thin | Large | Giant, large, and thin | |||
Arrangement | Loop path | Linear, forming septa | Irregular, forming groups | |||
Type and lumen size of vessels in which pillars are predominantly located | Loop Narrow lumen | Mother vessel Wide lumen | Mother vessel Wide lumen | |||
ITSs | Substrate | Interstitial tissue | +++ | + | + | |
Vessel wall components | +/− | +++ | +++ | |||
Fibrin | +/− | + | +++ | |||
Location | Extravascular (non-transported into the vessel lumen) | +++ | +/− | +/− | ||
Intravascular (transported into the vessel lumen) | +/− | +++ | +++ | |||
