Metastases to the breast: role of fine needle cytology samples. Our experience with nine cases in 2 years.
BACKGROUND
The increased survival due to the introduction of effective antineoplastic regimens has caused a modification of the natural history of numerous malignancies. Follow-up of neoplastic patients often includes the evaluation of masses in various body sites by fine needle cytology (FNC) in order to rule out cancer recurrence. Besides primary neoplasms, the breast can host a number of metastases: these rarely do have a typical presentation, so FNC is requested for their cytomorphological assessment.


METHODS
This report describes nine consecutive cases in which a cytopathological diagnosis of metastasis to the breast was carried out on FNC samples.


RESULTS
Primary sites were identified on cytomorphological and immunocytochemical bases and were represented by the ovary (three cases), melanoma (two cases), endocervix (one case), endometrium (one case), lung (one case) and prostate (one case).


CONCLUSIONS
The cytopathological diagnosis of metastatic neoplasms to the breast is not always straightforward, especially in the absence of a clinical history of cancer. The usage of improved cytopathological criteria combined with immunocytochemistry may be of great diagnostic help in the identification of breast metastases.
Fulciniti
F
F
Section of Pathology, Cytopathology Service, National Cancer Center, Fondazione G. Pascale, Via Mariano Semmola 1, I-80131 Naples, Italy. franco.fulciniti@gmail.com
Losito
S
S
Botti
G
G
Di Mattia
D
D
La Mura
A
A
Pisano
C
C
Pignata
S
S
D000230:Adenocarcinoma / Q000175:diagnosis / Q000556:secondary; D000328:Adult; D000368:Aged; D044963:Biopsy, Fine-Needle; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000556:secondary*; D018567:Breast Neoplasms, Male / Q000175:diagnosis / Q000556:secondary; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis / Q000556:secondary; D018284:Cystadenocarcinoma, Serous / Q000175:diagnosis / Q000556:secondary; D016889:Endometrial Neoplasms / Q000473:pathology; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008175:Lung Neoplasms / Q000473:pathology; D008297:Male; D008545:Melanoma / Q000175:diagnosis / Q000556:secondary; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000473:pathology; D011237:Predictive Value of Tests; D011471:Prostatic Neoplasms / Q000473:pathology; D002583:Uterine Cervical Neoplasms / Q000473:pathology