Growth hormone-producing giant pituitary adenoma with marked cellular atypia.
スポンサーリンク
概要
- 論文の詳細を見る
<B><I>Background</I>:</B> Some cases of pituitary adenoma must be differentiated from carcinoma. We report a case of giant pituitary adenoma showing marked cellular atypia, which required a careful differential diagnosis from carcinoma.<BR><B><I>Case</I>:</B> The patient was a 21-year-old female who was admitted complaining of headache and nausea. CT scan and MRI examinations revealed a large tumor mass measuring 5.7×4.3×4.0cm. The tumor was sharply demarcated, but showed suprasellar extension in the region of the sella turcica, and minimal invasion in the right cavernous sinus. Laboratory examinations revealed an elevated growth hormone level. Imprint cytology of the tumor disclosed that the tumor cells were round to polygonal with light-green or pale stained cytoplasm. Nuclear size was variable and often accompanied by marked atypism and pleomorphism with one or two prominent nucleoli. Multinucleated giant cells and nuclear inclusion bodies were also encountered, but no mitotic cells were found. Neoplastic cells were positive for chromogranin A, cytokeratin, and growth hormone on immunohistochemistry.<BR><B><I>Conclusion</I>:</B> Pituitary adenoma often shows considerable cellular atypia. For the differential diagnosis from carcinoma, the presence of mitosis and growth activity of cells, in addition to clinical information, is important.
- 特定非営利活動法人 日本臨床細胞学会の論文
特定非営利活動法人 日本臨床細胞学会 | 論文
- Cytology of Carcinoid of Digestive Organs
- T-cell rich B-cell large cell lymphoma.
- Symposium on borderline lesions. 1. Aspiration cytology of lymph nodes with special reference to malignant lymphoma.
- A case of endometrioid adenocarcinoma, so-called secretory variant.
- Significant factors influencing the accuracy of PTCD bile cytology for bile duct lesions.