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EPITHELIOID MESOTHELIOMA: PAPILLARY <span class="search-highlight">PATTERN</span>  Complex branching <span class="search-highlight">pattern</span> is p...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA: PAPILLARY PATTERN Figure 3-25 EPITHELIOID MESOTHELIOMA: PAPILLARY PATTERN Complex branching pattern is present at the top and more solid growth is seen at the bottom. More
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EPITHELIOID MESOTHELIOMA:TUBULOPAPILLARY <span class="search-highlight">PATTERN</span>  The tumor forms tubular s...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA:TUBULOPAPILLARY PATTERN Figure 3-24 EPITHELIOID MESOTHELIOMA:TUBULOPAPILLARY PATTERN The tumor forms tubular structures and spaces into which project papillae with fibrovascular cores. Benign-appearing mesothelium is seen at the bottom. More
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EPITHELIOID MESOTHELIOMA: PAPILLARY <span class="search-highlight">PATTERN</span>  The papillae are covered by si...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA: PAPILLARY PATTERN Figure 3-26 EPITHELIOID MESOTHELIOMA: PAPILLARY PATTERN The papillae are covered by single to multiple layers of tumor cells. More
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EPITHELIOID MESOTHELIOMA: SOLID <span class="search-highlight">PATTERN</span>  There are sheets of epithelioid tu...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA: SOLID PATTERN Figure 3-27 EPITHELIOID MESOTHELIOMA: SOLID PATTERN There are sheets of epithelioid tumor cells with pale cytoplasm, round to oval nuclei, small to medium-sized nucleoli, and numerous mitotic figures. An area of necrosis is seen at lower left. More
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EPITHELIOID MESOTHELIOMA: TRABECULAR <span class="search-highlight">PATTERN</span>  The tumor cells form thick co...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA: TRABECULAR PATTERN Figure 3-28 EPITHELIOID MESOTHELIOMA: TRABECULAR PATTERN The tumor cells form thick cords invading loose fibromyxoid stroma. More
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EPITHELIOID MESOTHELIOMA:ADENOMATOID (ACINAR)/MICROCYSTIC <span class="search-highlight">PATTERN</span>  There ar...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA:ADENOMATOID (ACINAR)/MICROCYSTIC PATTERN Figure 3-29 EPITHELIOID MESOTHELIOMA:ADENOMATOID (ACINAR)/MICROCYSTIC PATTERN There are gland-like structures formed by bland mesothelial cells, infiltrating fibrous tissue. More
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EPITHELIOID MESOTHELIOMA:MICROPAPILLARY AND PAPILLARY <span class="search-highlight">PATTERN</span>  The tumor ce...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA:MICROPAPILLARY AND PAPILLARY PATTERN Figure 3-35 EPITHELIOID MESOTHELIOMA:MICROPAPILLARY AND PAPILLARY PATTERN The tumor cells form multiple small papillae, most of which do not have fibrovascular cores, while others do. Mixed patterns are common. More
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EPITHELIOID MESOTHELIOMA:MICROPAPILLARY <span class="search-highlight">PATTERN</span>  The tumor forms micropapil...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA:MICROPAPILLARY PATTERN Figure 3-36 EPITHELIOID MESOTHELIOMA:MICROPAPILLARY PATTERN The tumor forms micropapillary projections into spaces within the stroma. The tumor cells in this case are pleomorphic, with tumor giant cells and prominent nucleoli. More
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EPITHELIOID MESOTHELIOMA:MICROPAPILLARY <span class="search-highlight">PATTERN</span>  Micropapillary clusters of...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA:MICROPAPILLARY PATTERN Figure 3-37 EPITHELIOID MESOTHELIOMA:MICROPAPILLARY PATTERN Micropapillary clusters of mesothelioma cells are seen within dilated lymphatics. More
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EPITHELIOID MESOTHELIOMA  Left: Multiple <span class="search-highlight">patterns</span> are present in this epith...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA Figure 3-21 EPITHELIOID MESOTHELIOMA Left: Multiple patterns are present in this epithelioid mesothelioma, including trabecular, single cell, and adenomatoid/microcystic. The stroma is notably myxoid. Right: In this case, there are areas showing papillary and adenomatoid... More
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EPITHELIOID MESOTHELIOMA  Psammoma bodies are present in this pleural mesot...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA Figure 3-23 EPITHELIOID MESOTHELIOMA Psammoma bodies are present in this pleural mesothelioma with papillary pattern. More
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EPITHELIOID MESOTHELIOMA  The tumor is infiltrating the lung with a desquam...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA Figure 3-49 EPITHELIOID MESOTHELIOMA The tumor is infiltrating the lung with a desquamative interstitial pneumonia (DIP)-like pattern. More
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THORACOLITH  A smooth, partly calcified nodule was removed from the pleural...
Published: 01 June 2022
THORACOLITH Figure 8-7 THORACOLITH A smooth, partly calcified nodule was removed from the pleural cavity, which showed the characteristic fibrous pattern of a pleural plaque. More
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PLEURAL PLAQUE  Left: A sharply demarcated, hard, almost waxy plaque lies o...
Published: 01 June 2022
PLEURAL PLAQUE Figure 8-6 PLEURAL PLAQUE Left: A sharply demarcated, hard, almost waxy plaque lies on the parietal pleural surface. Right: The fibrosis shows a lamellar “basket-weave” pattern. More
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EPITHELIOID MESOTHELIOMA:ADENOMATOID (ACINAR)/MICROCYSTIC  The tumor cells ...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA:ADENOMATOID (ACINAR)/MICROCYSTIC Figure 3-34 EPITHELIOID MESOTHELIOMA:ADENOMATOID (ACINAR)/MICROCYSTIC The tumor cells have very low-grade morphology and show a cribriform pattern mixed with solid nests, reminiscent of adenoid cystic carcinoma. More
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EPITHELIOID MESOTHELIOMA:WITH SIGNET RING CELLS  The tumor cells have a cle...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA:WITH SIGNET RING CELLS Figure 3-38 EPITHELIOID MESOTHELIOMA:WITH SIGNET RING CELLS The tumor cells have a clear intracytoplasmic vacuole, giving them a signet ring cell appearance. This pattern puts signet ring cell carcinoma in the differential diagnosis. More
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EPITHELIOID MESOTHELIOMA:NUCLEAR ATYPIA SCORE 3  The tumor nuclei are more ...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA:NUCLEAR ATYPIA SCORE 3 Figure 3-52 EPITHELIOID MESOTHELIOMA:NUCLEAR ATYPIA SCORE 3 The tumor nuclei are more atypical than those seen in grade 2, with markedly enlarged nucleoli, but are not as pleomorphic as is seen in the pleomorphic pattern of epithelioid mesothelioma.... More
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EPITHELIOID MESOTHELIOMA  A: There is strong diffuse staining with antibody...
Published: 01 June 2022
EPITHELIOID MESOTHELIOMA Figure 3-71 EPITHELIOID MESOTHELIOMA A: There is strong diffuse staining with antibody to calretinin. Most tumor cells have the typical pattern of staining of stronger nuclear and weaker cytoplasmic staining. B: There is strong nuclear staining with antibody to WT-1 in t... More
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 11
Publisher: American Registry of Pathology
Published: 01 June 2022
DOI: 10.55418/9781933477190-3
ISBN-10: 1-933477-19-9
ISBN: 978-1-933477-19-0
... a  Crocidolite  Tremolite Zeolite  Erionite a Data from references 32a , 32b , 64 , and 68 . Table 3-3 HISTOLOGIC PATTERNS AND FEATURES OF MESOTHELIOMA a Epithelioid mesothelioma  Architectural patterns (give percentages for EPD/EPP b and document...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 11
Publisher: American Registry of Pathology
Published: 01 June 2022
DOI: 10.55418/9781933477190-7
ISBN-10: 1-933477-19-9
ISBN: 978-1-933477-19-0
...   1997 ; 64 : 68 - 72 . 40. DeMatteo   RP , Lewis   JJ , Leung   D , Mudan   SS , Woodruff   JM , Brennan   MF Woodruff   JM . Two hundred gastrointestinal stromal tumors: recurrence patterns and prognostic factors for survival . Ann Surg   2000 ; 231 : 51 - 8 . 41...