Mw. Stanley et al., CYTOLOGY OF GERM-CELL TUMORS - EXTRAGONADAL, EXTRACRANIAL MASSES AND INTRAOPERATIVE PROBLEMS, Cancer cytopathology, 81(4), 1997, pp. 220-227
BACKGROUND. Germ cell tumors (GCTs) and their metastases may be found
in numerous sites that are accessible to cytologic sampling, and many
are responsive to chemotherapy. METHODS. The authors reviewed 20 examp
les of GCT cytology from 16 males and 3 females ranging in age from 1.
5 to 61 years (median, 34 years). With two exceptions, one benign cyst
ic ovarian teratoma in which intraoperative cytology was used to diagn
ose an associated adult-type carcinoma and one undescended testis in w
hich seminoma presented as an abdominal mass, the material reviewed in
cluded no examples of primary gonadal GCT. RESULTS. The authors studie
d 7 primary and 13 metastatic GCTs; these studies were based on 13 in
vivo aspirations, 4 intraoperative preparations, and 3 samples of body
cavity fluids. All samples were correctly interpreted as malignant, a
nd only one was incorrectly classified as a non-GCT malignancy. CONCLU
SIONS. Clinical and cytologic findings are useful in the diagnosis of
GCTs and their metastases. Incorrect interpretation of these neoplasms
as poorly differentiated malignancies of other types may deprive the
patient of effective chemotherapy. Air-dried, Romanowsky-stained smear
material and cell block sections may contribute to the resolution of
diagnostic dilemmas. (C) 1997 American Cancer Society.