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Pediatric cardiac tumors, although rare, may underlie some cases of unexplained sudden infant death. Autopsy is a crucial diagnostic step in these cases, as both gross and microscopic examination of the heart may uncover occult cardiac tumors. Rhabdomyomas are the most common cardiac tumors in childhood and may result in arrythmia and sudden death. We present a case of sudden death in a healthy 5-month-old infant which initially appeared \u201cSIDS-like\u201d until thorough histological analysis revealed an underlying cardiac rhabdomyoma. The case is of particular importance in that the gross examination of the heart was considered completely normal, and the tumor only involved certain portions of the heart microscopically. Had a single random section of myocardium been the only heart section examined microscopically, the diagnosis might have been missed. This case emphasizes the importance of thorough microscopic examination in infant cases, especially in cases where the heart appears grossly normal.<\/jats:p>","DOI":"10.1007\/s12024-023-00737-9","type":"journal-article","created":{"date-parts":[[2024,7,4]],"date-time":"2024-07-04T08:15:06Z","timestamp":1720080906000},"page":"977-982","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Cardiac rhabdomyoma: an uncommon culprit in sudden infant death"],"prefix":"10.1007","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-0346-1678","authenticated-orcid":false,"given":"Kori L.","family":"Mecklenburg","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erik K.","family":"Mitchell","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4754-4799","authenticated-orcid":false,"given":"Joseph A.","family":"Prahlow","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,7,4]]},"reference":[{"issue":"1","key":"737_CR1","doi-asserted-by":"publisher","first-page":"223","DOI":"10.1007\/S00246-007-9083-1","volume":"29","author":"S Stratemann","year":"2008","unstructured":"Stratemann S, Dzurik Y, Fish F, Parra D. 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