Quiste de mesenterio (linfangioma)

Mesenteric cyst is defined as a cystic lesion located between the leaflets of the mesentery from the duodenum to the rectum , being most commonly found in ileum level. Since its first description in 1507 by Benevienae until 1993 there are only about 820 cases reported in the literature^4 - 6.

Lymphangiomas are benign tumors, probably congenital, are more common in the cervical and axillary regions. They are unusual in abdominal and pancreas location. Its incidence is estimated at around 1:100,000 and 1:20,000 admissions in adults and in children. The first excision was performed by Tillaux (quoted Chung) only in 1802⁵. Despite the long recognition of this disease, its origin classification and pathology remain controversial. The highest incidence is between the third and fourth decades of life, with 75% of those diagnosed after ten years with a slight female predominance. The term lymphangioma is appropriately used when there is hemodynamic isolation, or the injury is not related to the blood system^10 - 13. Lymphangiomas are a major group of so-called vascular hamartomas, which result from a failure in the evolutionary development of the vascular system, including lymphatic and/or arteries and veins³.

[Tomado de: REIS, Diogo Gontijo Dos; RABELO, Nícollas Nunes  and  ARATAKE, Sidnei Jose.Mesenteric cyst: abdominal lymphangioma. ABCD, arq. bras. cir. dig. [online]. 2014, vol.27, n.2 [cited  2015-12-15], pp. 160-161 . Available from: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-67202014000200160&lng=en&nrm=iso>. ISSN 0102-6720.  http://dx.doi.org/10.1590/S0102-67202014000200016.]

Quiste de colédoco (tipo 1)

Quiste adrenal endotelial / Adrenal entothelial cyst

Adrenal cysts are rare and form a heterogeneous group of lesions that includes (a) parasitic cysts, (b) epithelial cysts, (c) pseudocysts, and (d) endothelial cysts. There is evidence (immunohistochemical and ultrastructural) that both pseudocysts and endothelial cysts are variants of vascular cysts. Adrenal vascular cysts account for 84% of adrenal cysts. They are more common in women and present clinically with abdominal pain or are incidental findings. Their imaging features are not specific. Grossly, both types of adrenal vascular cysts are encapsulated. Pseudocysts are unilocular, thick-walled, and devoid of endothelial lining, whereas endothelial cysts are thin-walled, multilocular, and lined by endothelium. Adrenal vascular cysts probably originate from a preexisting vascular hamartoma. The treatment of choice is surgical excision. The prognosis is excellent. (Arch Pathol Lab Med. 2006;130:1722–1724)

Síndrome de Dandy-Walker

Caracterizado por hipoplasia del vermis cerebeloso, dilatación del cuarto ventrículo y quiste aracnoideo de fosa posterior (dilatación quística de la fosa posterior)