An omphalolith, also known as a umbolith, omphalith, navel stone, or umbilical concretion is a periumbilical mass that may form due to the accumulation of sebum and keratin. The colour is black or brown, and may be related to the skin type of the patient. It may resemble a malignant melanoma. It may be caused by poor hygiene, and may form in retracted navels in obese people.
Etymology
The name was derived from the Greek words omphalos (Greek: ομφαλός), meaning navel, and lithos (Greek: λίθος), meaning stone.
References
- Ichiki, Y.; Kitajima, Y. (April 17, 2009). "Omphalith". Clinical and Experimental Dermatology. 34 (3): 420–421. doi:10.1111/j.1365-2230.2008.02959.x. PMID 19120385. S2CID 221545259 – via PubMed.
- ^ Plewig, Gerd; Kligman, Albert M. (April 17, 2000). "Omphalolith: The Ugly Navel Stone". In Plewig, Gerd; Kligman, Albert M. (eds.). ACNE and ROSACEA. Springer. p. 553. doi:10.1007/978-3-642-59715-2_72. ISBN 9783642597152 – via Springer Link.
- ^ Mihara, Kip (November 17, 2016). "Omphalolith: An Umbilical Concretion to Recognize". Journal of General Internal Medicine. 31 (11): 1396. doi:10.1007/s11606-016-3708-0. PMC 5071274. PMID 27114363.
- Kumar, Sampath K. L.; Reddy, C. Obula; Reddy, Keertinmayee (June 17, 2011). "Omphalolith". The Indian Journal of Surgery. 73 (3): 238–239. doi:10.1007/s12262-010-0143-z. PMC 3087053. PMID 22654343.
- Fisher, Alexander A.; Rietschel, Robert L.; Fowler, Joseph F. (1995). Fisher's Contact Dermatitis. Williams & Wilkins. ISBN 978-0-683-07282-2.
- Houghton, Andrew R.; Gray, David (2010-05-28). Chamberlain's Symptoms and Signs in Clinical Medicine, An Introduction to Medical Diagnosis. CRC Press. ISBN 978-1-4822-1378-2.
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