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In search of the elusive benign cystic ovarian teratoma: Application of the ultrasound “tip of the iceberg” sign
Author(s) -
Guttman Paul H.
Publication year - 1977
Publication title -
journal of clinical ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.272
H-Index - 61
eISSN - 1097-0096
pISSN - 0091-2751
DOI - 10.1002/jcu.1870050609
Subject(s) - medicine , sign (mathematics) , confusion , adnexal mass , teratoma , ultrasound , mature cystic teratoma , ovarian teratoma , anatomy , pathology , radiology , psychology , mathematical analysis , mathematics , psychoanalysis
The benign cystic ovarian teratoma (dermoid) has distinctive ultrasonic features that differentiate it from other adnexal masses. The most frequent sign is the presence of highly reflective irregular solid components within a fluid‐conentaining adnexal mass. In vitro scans of surgical specimens have shown that the strongly reflective echo pattern is caused by the hair and sebum within the dermoid. Calcium is often sparse or absent. Acoustic shadowing from the hair may totally obscure the back wall of a large, clinically evident mass; hence the term “tip of the iceberg” sign. Recognition of this sign reduces the possibility of a false negative interpretation and confusion with a “bowel gas pattern.”