Case Of Papillary Cell Carcinoma Research Articles

Differential diagnostic value of magnetic resonance diffusion-weighted imaging and apparent diffusion coefficient for renal clear cell carcinoma and non-clear cell carcinoma.

Accurate identification of renal cell carcinoma (RCC) subtypes before surgery is important to determine appropriate surgical methods and clinical prognosis. The objective of the present study was to investigate the differential diagnostic value of magnetic resonance diffusion-weighted imaging (MRI-DWI) and the measured apparent diffusion coefficient (ADC) in clear cell (cc) RCC and non-ccRCC. Imaging data (DWI and ADC) from 100 patients with pathologically confirmed RCC from March 2018 to March 2021 in Affiliated Hospital of Gansu University of Chinese Medicine, (Lanzhou, China) were retrospectively analyzed, including 32 cases of non-ccRCC (21 cases of chromophobe and 11 cases of papillary cell carcinoma) and 68 cases of ccRCC. Patients underwent MRI examination, including high and low B-value DWI, to compare the imaging features of the two RCC subtypes and the ADC values of tumor sites were measured. The results of the DWI and ADC were statistically different between the two RCC subtypes (P<0.01). The DWI of ccRCC was primarily low, equal or slightly high signal. ADC of ccRCC was mainly equal or slightly high signal and the high B-value DWI signal was lower than the low B-value DWI. DWI of non-ccRCC was mostly obviously high signal. ADC of non-ccRCC was mostly uniform, obviously low signal and the high B-value DWI signal was markedly higher than the low B-value DWI. The ADC values of non-ccRCC were lower than those of ccRCC, and the ADC values <1.42±0.48×10-3 mm2/s were mostly non-ccRCC. In conclusion, MRI-DWI and ADC can be used to differentiate subtypes of RCC to determine appropriate surgical methods and clinical prognosis.

Tumor-to-tumor Metastases: Papillary Renal Cell Carcinoma into A Papillary Thyroid Carcinoma: A Case Report

Thyroid malignancies are commonest endocrine malignancy. It can be primary, can be secondary also.Though secondary thyroid malignancies are rare it happens sporadically from kidney, skin, breast andhead-neck tumor. Here we described a case of metastatic papillary thyroid carcinoma. This case wasdiagnosed as a case of papillary cell carcinoma of left kidney 18 months back, underwent radical nephrectomyand received a course of Tyrosine Kinase Inhibitor also and remain symptom free for one year. Thenpresented to us with thyroid swelling along with cervical lymphadenopathy. J MEDICINE 2022; 23: 77-81

Primary Squamous Cell Carcinoma of the Thyroid Gland With Eggshell Calcification

Primary squamous cell carcinoma (SCC) of the thyroid gland is an extremely rare neoplasm with fewer than 55 reported cases. 1 The cancer, which resembles anaplastic carcinoma, tends to be advanced at presentation, with rapid progression and a poor prognosis. 2 Calcification is a common finding on thyroid imaging. Microcalcification is known to be associated with thyroid malignancy. 3 Eggshell or peripheral calcification was once thought to be an indicator that a tumor is benign, with few exceptions. Cases of papillary cell carcinoma, anaplastic carcinoma, and follicular cell carcinoma with this calcified pattern have been reported. 3 - 8 However, from review of the literature in English, no thyroid SCC with eggshell calcification has been reported. Here we report a case of primary SCC of the thyroid gland with eggshell calcification and its sonographic, computed tomographic (CT), and pathologic findings.

Squamous Cell Carcinoma, Adenocarcinoma and Papillary Cell Carcinoma Arising from the Mature Cystic Teratoma of the Ovary: Case Report

The mature cystic teratoma is the most common ovarian neoplasm arising in young women. The vast majority of them is benign, however malignant transformation has been reported to occur in 1~2% of these lesions. The malignant neoplasms arising in mature cystic teratoma are overwhelmingly squamous cell carcinomas. Adenocarcinoma occurs with less frequency. The prognosis does not appear to be improved by range of surgery but depends mainly on the tissues of the primary tumor and the peritoneal deposits. We experienced two cases of squamous cell carcinoma, two cases of adenocarcinoma and one case of papillary cell carcinoma arising in mature cystic teratoma of the ovary and report these cases with a brief review of literature.