Cellular resolution ex vivo imaging of gastrointestinal tissues with optical coherence microscopy.

Optical coherence microscopy (OCM) combines confocal microscopy and optical coherence tomography (OCT) to improve imaging depth and contrast, enabling cellular imaging in human tissues. We aim to investigate OCM for ex vivo imaging of upper and lower gastrointestinal tract tissues, to establish correlations between OCM imaging and histology, and to provide a baseline for future endoscopic studies. Co-registered OCM and OCT imaging were performed on fresh surgical specimens and endoscopic biopsy specimens, and images were correlated with histology.

Ovarian carcinoma with thyroid metastases causing clinical hypothyroidism: a case report.

Background: Ovarian cancer is known to metastasize to the thyroid gland. Despite an incidence of ovarian metastasis to the thyroid of 3-15%, clinical hypothyroidism resulting from such metastasis has not yet been reported. We present a case of metastatic ovarian cancer to the thyroid resulting in clinical hypothyroidism.

Ductal carcinoma in situ with basal-like phenotype: a possible precursor to invasive basal-like breast cancer.

Basal-like carcinomas have recently been identified in gene expression profiling studies as a subtype of invasive breast cancer. These lesions are estrogen receptor (ER)-negative, progesterone receptor (PR)-negative, and HER2-negative (triple negative), and typically express basal cytokeratins, epidermal growth factor receptor (EGFR), and/or c-kit. As poorly differentiated invasive ductal carcinomas, they presumably have a ductal carcinoma in situ (DCIS) precursor with similar cytologic and immunophenotypic features.