Premium
Imprint cytology of high‐grade immature ovarian teratoma: A case report, literature review, and distinction from other ovarian small round cell tumors
Author(s) -
Ramalingam Preetha,
Teague Daniel,
ReidNicholson Michelle
Publication year - 2008
Publication title -
diagnostic cytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.417
H-Index - 65
eISSN - 1097-0339
pISSN - 8755-1039
DOI - 10.1002/dc.20849
Subject(s) - medicine , pathology , germ cell tumors , differential diagnosis , cytopathology , teratoma , cytology , not otherwise specified , frozen section procedure , neoplasm , ovarian teratoma , chemotherapy
Immature ovarian teratoma (IOT) is a rare and aggressive malignant neoplasm characterized by immature neural tissue. The cytomorphologic features have only rarely been described. We herein describe an additional case and review the literature regarding this entity. To the best of our knowledge, this is the first reported case with imprint cytology. A 35‐year‐old woman presented with a pelvic mass which was resected and sent for frozen section evaluation. Imprint smears and frozen section of the mass were diagnostic of IOT. IOT has diagnostic cytologic features which show complete concordance with histology. Differential diagnoses include other small round cell neoplasms such as ovarian neuroblastoma, small cell carcinoma of hypercalcemic type, primitive neuroectodermal tumor, Wilm's tumor, desmoplastic small round cell tumor, and Non‐Hodgkin lymphoma. Distinguishing IOT from these tumors can be challenging however if diligent morphologic study and/or ancillary studies are performed accurate diagnosis is possible. Diagn. Cytopathol. 2008; 36: 595–599. © 2008 Wiley‐Liss, Inc.