Endoscopic findings in Cowden syndrome

 

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Cowden syndrome is characterized by diffuse hamartomas involving the whole digestive tract. The gastrointestinal expression of the disease is inconstant, but hamartomatous polyposes are frequent. In a multicenter study we studied the endoscopic appearance of Cowden syndrome – as defined by fulfillment of international consortium criteria – in 10 patients. In 6 of the 10 patients the connection with Cowden syndrome was made retrospectively on the basis of the gastrointestinal endoscopic findings. All patients had upper and lower gastrointestinal tract involvement. Mean follow-up duration was 9.5 years (range: 2 – 26 years). Mean age was 37 years (range: 18 – 56 years). Polyps of the upper gastrointestinal tract were hamartomas, ganglioneuromas, lipomas, and adenomas. Diffuse glycogenic acanthosis was reported in nine patients. Besides the classical hamartomatous polyposis, diffuse macroscopic esophageal acanthosis and microscopic ganglioneuromatosis are other key findings associated with a diagnosis of Cowden syndrome. Physicians should be aware of these characteristics in order to diagnose Cowden syndrome early.

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1 Note: R. Coriat and M. Mozer contributed equally to this work.

R. CoriatMD, MSc 

Gastroenterology and Endoscopy Unit
Université Paris Descartes, AP-HP
Hôpital Cochin

27, rue du faubourg Saint Jacques
75014 Paris
France

Fax: +33-1-797348 81

Email: romain.coriat@cch.aphp.fr