Cystic hygroma in a female suckling pig, a case report

Renske Holleboom, Delaja Bombosch, Merel Wispels, Giuseppe Giglia, Tijs Tobias

Research output: Contribution to journalArticleAcademicpeer-review


Background: Cystic hygromas (lymphangiomas) are rarely reported in various animal species, humans included. A hygroma is a benign congenital malformation of the lymphatic drainage system, presenting itself as a mass consisting of multiple cysts of various sizes with a watery content.

Case presentation: This report describes clinical, ultrasonographic, and post-mortem findings of a cystic hygroma in a suckling pig. The mass was characterized by a few thin-walled cysts, containing clear yellow serous fluid. Histologically, the central cavity was lined by a single layer of squamous cells, supported by a thick fibrous stroma. On immunohistochemistry, scattered lining cells were weakly positive for Factor-VIII, suggesting their possible endothelial origin.

Conclusions: This case report contributes to raising awareness on this condition in pigs allowing early identification in life so that appropriate care can be provided. The case report attributes to science on hygromas in general, as better understanding of pathologic features, the aetiology and appropriate treatment are needed.
Original languageEnglish
Article number40
JournalPorcine Health Management
Publication statusPublished - 2022


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