User contributions
21 August 2013
File:IPLab7Melanoma7.jpg
This is a high-power photomicrograph of the main tumor mass with the cells growing as poorly formed nests and sheets of cells. There is little if any pigment in this section.
File:IPLab7Melanoma6.jpg
This is a higher magnification showing the abundant extracellular melanin surrounding the tumor cells (brown pigment).
File:IPLab7Melanoma5.jpg
This is a higher-magnification showing the abundant extracellular melanin (arrows) surrounding the tumor cells. This section of neoplasm shows the numerous cells with abundant cytoplasm and brown pigment within the cytoplasm of some of these cells.
File:IPLab7Melanoma4.jpg
This higher-power photomicrograph shows the remaining portion of lymph node (arrow). The rest of the lymph node is invaded by a neoplasm composed of cells with lighter eosinophilic cytoplasm and pigment.
File:IPLab7Melanoma3.jpg
This is a low-power photomicrograph of lymph node that is almost completely replaced/filled with tumor. This lymph node has a capsule (1) and some remaining lymphocytes (2) but the remainder of the node is replaced by tumor cells.
File:IPLab7Melanoma2.jpg
This is a gross photograph of lymph nodes almost entirely replaced by black pigment (melanin).
File:IPLab7Melanoma1.jpg
This is a gross photograph of skin with melanoma. Note the black pigment, multiple satellite nodules, and focal ulceration. Some of the satellite nodules affect the nipple.
IPLab:Lab 7:IDC
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab7IDC1.jpg|This is a gross photograph of the surgical specimen of breast with infiltrating duct carcinoma. Note ..."
File:IPLab7IDC8.jpg
This is a high-power photomicrograph demonstrating the growth pattern of the tumor. The tumor consists of malignant duct-lining cells growing in cords, solid cell nests, tubules, and glands. The cytologic detail of tumor cells varies from small cells w...
File:IPLab7IDC7.jpg
This is a section taken at the periphery of the tumor showing bands of tumor cells infiltrating into the fat tissue.
File:IPLab7IDC6.jpg
This is a section of breast tumor with abundant fibrous tissue throughout the tumor (desmoplasia, scirrhous carcinoma).
File:IPLab7IDC5.jpg
This is a high-power photomicrograph showing the cellular and nuclear features of the tumor cells. The large epithelial cells form glands and are medium-sized with a moderate amount of cytoplasm, vesicular nuclei, and nucleoli.
File:IPLab7IDC4.jpg
This is a higher-magnification showing abundant groups of tumor cells dissecting through the breast parenchyma - tumor infiltration (infiltrating duct cell carcinoma).
File:IPLab7IDC3.jpg
This is a section of breast with small groups of carcinoma cells throughout the breast tissue and invading through the dermis.
File:IPLab7IDC2.jpg
These are sections of normal breast (lower) and breast tissue with infiltrating duct carcinoma (upper). Note the increased cellularity (increased blue staining due to the increased number of nuclei) in the tumor tissue.
File:IPLab7IDC1.jpg
This is a gross photograph of the surgical specimen of breast with infiltrating duct carcinoma. Note the tumor tissue under the area of the nipple. The tumor infiltrates in an irregular fashion into the breast parenchyma. Note the nipple retraction cau...
IPLab:Lab 7:Metastatic Adenocarcinoma
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab7Metastatic1.jpg|This gross photograph of the liver from this case demonstrates multiple, variably-sized pale/w..."
File:IPLab7Metastatic9.jpg
This is a high-power photomicrograph of the edge of the tumor nodule in the lung. The tumor cells area growing in a glandular pattern. The area of necrosis is evident at the right side of the image.
File:IPLab7Metastatic8.jpg
This is a high-power photomicrograph of the edge of the tumor nodule in the lung. The tumor cells are infiltrating into the lung parenchyma (1). Even at this power you can see the glandular formation of this adenocarcinoma. There is a large area of nec...
File:IPLab7Metastatic7.jpg
This is a photomicrograph of a tumor nodule in the lung. The tumor cells are infiltrating into the lung parenchyma (1). There is a large area of necrosis in the center of the tumor (2).
File:IPLab7Metastatic6.jpg
This is a high-power photomicrograph of tumor cells that are forming glands (arrows).
File:IPLab7Metastatic5.jpg
This is a higher-power photomicrograph showing how the tumor cells (arrows) have infiltrated into the liver parenchyma.
File:IPLab7Metastatic4.jpg
This is a photomicrograph taken at the interface between the tumor (top) and the normal liver parenchyma (bottom).
File:IPLab7Metastatic3.jpg
These are low-power photomicrographs of a section of liver (left) and lung (right) containing tumor nodules (arrows).
File:IPLab7Metastatic2.jpg
This gross photograph of the lung from this case also demonstrates multiple, variably sized pale/white-tan nodules scattered throughout the lung.
File:IPLab7Metastatic1.jpg
This gross photograph of the liver from this case demonstrates multiple, variably-sized pale/white-tan nodules scattered throughout the liver.
IPLab:Lab 7:Adenocarcinoma
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab7ColonCA1.jpg|This is a gross photograph of the adenoma from the surgical specimen in this case. Note the large..."
File:IPLab7ColonCA9.jpg
This is a segment of distal colon from another case. Note the annular tumor that severely compromises the lumen of the colon. There is dilation of the colon proximal to the tumor.
File:IPLab7ColonCA8.jpg
This gross photograph from another case demonstrates an ulcerated adenocarcinoma (arrows) at the rectosigmoid junction.
File:IPLab7ColonCA7.jpg
This is a high-power photomicrograph of tumor cells forming glands.
File:IPLab7ColonCA6.jpg
This is a high-power photomicrograph of tumor cells forming glands.
File:IPLab7ColonCA5.jpg
This is a high-power photomicrograph of tumor cells invading the underlying muscularis.
File:IPLab7ColonCA4.jpg
This is a higher-power photomicrograph of the area of transition between the normal (1) and the neoplastic (2) epithelium.
File:IPLab7ColonCA3.jpg
This photomicrograph of the surgical specimen shows the transition between normal mucosa on the left and carcinoma which is invading the wall of the bowel (arrow).
File:IPLab7ColonCA2.jpg
This is a closer view of the previous image demonstrating the raised, annular carcinoma (arrows).
File:IPLab7ColonCA1.jpg
This is a gross photograph of the adenoma from the surgical specimen in this case. Note the large, ulcerated, fungating annular (encircling) carcinoma (1) with areas of hemorrhage (2). Also note the adenomatous polyps (3).
IPLab:Lab 7:Esophagus SCC
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab7EsophSCC1.jpg|This is a gross photograph of the luminal surface of the esophagus with the area of constriction..."
File:IPLab7EsophSCC7.jpg
This is a high-power photomicrograph of the tumor cells that have invaded the adjacent muscle tissue.
File:IPLab7EsophSCC6.jpg
This is a higher-power photomicrograph of bands of tumor cells (arrows) extending between the muscle bundles.
File:IPLab7EsophSCC5.jpg
This is a photomicrograph of bands of tumor cells invading into the adjacent tissues (arrows).
File:IPLab7EsophSCC4.jpg
This is a higher-power photomicrograph showing invasive squamous cell carcinoma. Tongues and islands of tumor cells exhibit areas of central necrosis (arrow).
File:IPLab7EsophSCC3.jpg
This is a high-power photomicrograph demonstrating the normal epithelium undergoing transition to carcinoma (arrows).
File:IPLab7EsophSCC2.jpg
This low-power photomicrograph of a cross-section through the esophagus at the area of constriction shows extensive infiltration of the esophageal wall with squamous cell carcinoma (arrows).
File:IPLab7EsophSCC1.jpg
This is a gross photograph of the luminal surface of the esophagus with the area of constriction (1). The area protrudes into the lumen. There is also a central area of ulceration (2).
IPLab:Lab 7:Lip SCC
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab7LipSCC1.jpg|This is a pre-op photograph of this patient with an ulcerated lesion on his lip (arrow). Also note..."
File:IPLab7LipSCC8.jpg
This is a section of muscle tissue from this biopsy of the lip. Note that the squamous cell carcinoma has infiltrated into the muscle tissue. There are also inflammatory cells within this area of tumor infiltration.
File:IPLab7LipSCC7.jpg
This is a high power photomicrograph of a poorly-differentiated area of tumor. Note the spindle-shaped cells and the irregular pattern of growth.
File:IPLab7LipSCC6.jpg
This is a high power photomicrograph of the well-differentiated squamous cell carcinoma. Note the intracytoplasmic keratinization which gives the cells a glassy appearance. The focal accumulations of keratinized cells are called keratin pearls (arrows).
File:IPLab7LipSCC5.jpg
This is a higher-power photomicrograph of infiltrating squamous cell carcinoma and inflammatory cells.
File:IPLab7LipSCC4.jpg
This is a higher-power photomicrograph of the well-differentiated squamous cell carcinoma and the inflammatory cell infiltration.