Sabato 27 ottobre 2012 - Pacini Editore
Sabato 27 ottobre 2012 - Pacini Editore
Sabato 27 ottobre 2012 - Pacini Editore
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COmuNiCaziONi ORali<br />
agnostic challenge. As in the present case, a prominent smooth<br />
muscle component with only scattered tumor cells may be<br />
mistaken for a leiomyoma, even though an association between<br />
adenomatoid tumors and leiomyomas seem to be not uncommon.<br />
Moreover, adenomatoid tumors with a solid growth pattern or<br />
cords of cells may be mistaken for an infiltrating malignant epithelial<br />
or mesothelial neoplasm. A differential diagnosis with a<br />
signet ring cell adenocarcinoma should be considered when small<br />
cells with small vacuoles are observed. In conclusion, we underline<br />
the importance to investigate each gynaecological lesion with<br />
great attention, in the aim to avoid over or under treatment in such<br />
challenging cases.<br />
references<br />
1 Goddard MJ, Grant JW. Adenomatoid tomours; a mucin histochemical<br />
and immunohistochemical study. Histopathology 1992;20:57-71.<br />
2 Nogales FF, Isaac MA, Hardisson D, et al. Adenomatoid tumors of the<br />
uterus: an analysis of 60 cases. Int J Gynecol Pathol 2001;21:34-40.<br />
3 Quigley JC, Hart WR. Adenomatoid tumors of the uterus. Am J Clin<br />
Pathol 1981;76:6<strong>27</strong>-35.<br />
4 Young RH, Silva EG, Scully RE. Ovarian and juxtaovarian adenomatoid<br />
tumors: a report of six cases. Int J Gynecol Pathol 1991;10:364-<br />
72.<br />
5 Amre R, Constantino J, Lu S, et al. Pathologic quiz case: a 52-yearold<br />
woman with a uterine mass. Arch Pathol Lab Med 2005;129:77-8.<br />
6 Skinnider BF, Young RH. Infarcted adenomatoid tumor; a report of<br />
five cases of a facet of a benign neoplasm that may cause diagnostic<br />
difficulty. Am J Surg Pathol 2004;28:77-83.<br />
7 Epstein JI. Urologic disorders: Differential Diagnosis in Pathology.<br />
New York, NY: Igasku-Shoin 1992, pp. 173-4.<br />
8 Golden A, Ash JE. Adenomatoid tumors of the genital tract. Am J<br />
Pathol 1945;21:63-79.<br />
9 Tiltman AJ. Adenomatoid tumors of the uterus and adnexa. Histopathology<br />
1980;4:437-43.<br />
10 Hes O, Perez-Montiel P, Alvarado Cabrer I, et al. Thread-like bridging<br />
strands: a morphologic feature present in all adenomatoid tumors.<br />
Ann Diagn Pathol 2003;7:<strong>27</strong>3-7.<br />
11 Phillips V, McCluggage WG, Young RH. Oxyphilic adenomatoid<br />
tumor of the ovary: a case report with discussion of the differential<br />
diagnosis of ovarian tumors with vacuoles and related spaces. Int J<br />
Gynecol Pathol 2007;26:16-20.<br />
12 Irikoma M, Takahashi K, Kurioka H, et al. Uterine adenomatoid<br />
tumors confirmed by immunohistochemical staining. Arch Gynecol<br />
Obstet 2001;265:151-4.<br />
13 Palacios J, Manrique AS, Villaespesa AR, et al. Cystic adenomatoid<br />
tumor of the uterus. Int J Gynecol Pathol 1991;10:296-301.<br />
A new monoclonal antibody kit for detecting HPV<br />
E7 oncoprotein: could it be a suitable, specific<br />
biomarker for hpv infection in cervical biopsies?<br />
G. Crisman1 , A.R. Vitale2 , L. Sollima1 , S. Bonin3 , V. Ciuffetelli4 ,<br />
A. Dal Mas4 , S. Saltarelli4 , L. Muzzolini5 , P. Zago5 , P. Leocata1 1 Anatomia Patologica, Dipartimento di Scienze della Salute, Università<br />
dell’Aquila, L’Aquila, Italia; 2 U.O.C. Anatomia Patologica, P.O. “SS.<br />
Filippo e Nicola”, Avezzano (AQ), Italia; 3 Dip. Univ. Cl. di Scienze Mediche,<br />
Chirurgiche e della Salute, Università di Trieste, Trieste, Italia;<br />
4 U.O.C. Anatomia Patologica, Ospedale Civile “San Salvatore”, L’Aquila,<br />
Italia; 5 Adriacell SpA, Trieste, Italia<br />
Introduction. The association of human papilloma virus (HPV)<br />
infection and cervical intraepithelial neoplasia (CIN) is well<br />
recognized. High-risk human papillomavirus (HR-HPV) infection<br />
are responsible of the vast majority of CINs and cervical<br />
carcinomas (CC) whereas the low-risk HPV(LR-HPV) types are<br />
rarely found.<br />
The different oncogenic potential of HR-HPV and LR-HPV is<br />
due to the different interactions of two major viral oncoproteins,<br />
E6 and E7, with cellular regulatory proteins, p53 and pRb. Interaction<br />
of HPV E6 and E7 oncogenic proteins with key regulatory<br />
cellular proteins leads to up regulation of p16INK4a , a CDK<br />
inhibitor. The overexpression of p16INK4a represents nowadays an<br />
indirect immunohistochemical marker for HPV infection, even<br />
313<br />
Fig. 1. HpV E7 viral oncoprotein expression in CiN1 (a), CiN2 (B) and<br />
CiN3(C) lesions. the expression strongly correlates with the grade of<br />
ciN<br />
though p16 INK4a -negative CINs and CCs are described. Thus, a<br />
more specific biomarker for HPV infection is needed.<br />
We investigated the expression of a new immunohistochemical<br />
monoclonal antibody kit which detects high-risk E7 oncogenic<br />
proteins of the Alpha-Papillomavirus genus (species 5,6,7 and 9)<br />
and compared the results with the p16 INK4a expression in CINs.<br />
Material and methods. Retrospective analysis of 50 paraffinembedded<br />
samples of diagnostic biopsies and surgical materials<br />
was performed by immunohistochemistry using commercially<br />
Fig. 2. a 20-year old woman with a pap smear diagnosis of l-Sil.<br />
Histological features of the cervical biopsy revealed a CiN1 lesion (a),<br />
p16 negative (B), HpV E7 viral oncoprotein positive (C). pCR investigations<br />
confirmed the presence of HpV 31 dNa.