A case of borderline clear cell fibroadenoma / 대한산부인과학회지

Clear cell tumor of borderline malignancy has been reported to account for 5 to 8% of all clear cell neoplasms, and <1% of borderline malignancies of the ovary. Borderline clear cell fibroadenoma with or without microinvasion mostly occurs in women with middle age, and the presenting symptoms associated with this tumor are non-specific. The clinico-pathologic features of borderline clear cell fibroadenoma are not well known because of its rarity. Furthermore, there is no consensus for treating the disease. Thus, we report a case of borderline clear cell fibroadenoma presenting as ovarian fibroadenoma with a review of literature.

Clear Cell "Sugar" Tumor of the Lung: A Well-Enhanced Mass with an Early Washout Pattern on Dynamic Contrast-Enhanced Computed Tomography

Clear cell tumor of the lung is a rare and very unusual benign pulmonary tumor. As clear cell tumor of the lung contains abundant cytoplasmic glycogen, this tumor is called "sugar tumor". We report a case of sugar tumor in a 64-yr-old man presenting as a round pulmonary nodule. On dynamic computed tomography (CT) scans, the solitary pulmonary nodule showed early wash-in enhancement with an early washout pattern like a lung malignancy. The patient underwent wedge resection for the tumor. Pathologic examination, including immunohistochemical studies, revealed that the nodule was a benign clear cell tumor, so-called "sugar tumor". Because only a small number of cases have been reported previously, clinical aspects, radiological characteristics on dynamic contrast-enhanced CT, and differential diagnosis of the tumor are not well established. Herein we present a clear cell tumor of the lung and discuss the clinical, radiological, and pathological features of the tumor.

Benign clear cell tumor of the lung: A case report.

A case of benign clear cell tumor of the lung in Thai male patient 22 years of age is presented. It is rare tumor with uncertain histogenesis. The perivascular epithelioid cells are proposed to be the proliferating cell type in the group of clear cell tumor, angiomyolipoma and lymphangio-leiomyomatosis. Most of clear cell tumor of the lung is benign and cured by tumor resection.

A Case of Epithelioid Trophoblastic Tumor / 대한부인종양콜포스코피학회잡지

We report a rare case of epithelioid trophoblastic tumor. The patient was initially thought to have endometrial carcinoma with high possibility of clear cell carcinoma on endometrial biopsy and pelvic MRI. The Pap smear showed feature of squamous cell carcinoma and was not consistent with the physical findings. The serum beta-hCG was 33.26 mIU/ml. The initial biopsy and pelvic MRI findings lead the clinicians to misdiagnose the case as a carcinoma.