3.2 Malformation Characteristics
Primarily lymphatic malformations, and lymphatic-venous malformations
were noted in this study group.2 Eighteen (75%) were
lymphatic malformations (LM), 20.8% (n=5) were mixed lymphatic-venous
(LVM). The majority of the LM in our patient population were primarily
macrocystic (n=18, 75%) with 20.8% (n=5) being mixed macro-microcystic
and one (4.2%) primarily microcystic (Table 2).
One patient with presumed LVM based on imaging was ultimately found to
have extra-osseus Ewing’s Sarcoma of the abdomen. CT and MRI were
consistent with LVM of the mesentery with multiple macrocysts as well as
microcystic features. However, fluid from the sclerotherapy procedure
was sent for cytology and noted to be consistent with Ewing’s sarcoma.