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Soft Tissue Pathology: Diagnostic Challenges, An Issue of Surgical Pathology Clinics, E-Book

Soft Tissue Pathology: Diagnostic Challenges, An Issue of Surgical Pathology Clinics, E-Book

Leona A. Doyle

(2015)

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Book Details

Abstract

This issue of Surgical Pathology Clinics is devoted to Soft Tissue Tumors, the first in this series was presented in 2011. This issue addresses the most difficult diagnostic challenges and focuses on differential diagnosis in soft tissue tumors. Each presentation is accompanied by abundant histologic slides to display the diagnostic differences. Additionally, authors selected two to five diagnoses they find can be particularly difficult, with an emphasis on how to approach such lesions on biopsy samples where relevant and the role of ancillary studies. Topics include coverage of diagnostically challenging: Vascular lesions; Retroperitoneal “Fatty” tumors of adults; Smooth muscle neoplasms; Chondro-osseous lesions of soft tissue; Pediatric tumors; Epithelioid tumors; Spindle cell neoplasms of the retroperitoneum; and Peripheral nerve sheath tumors. Also presented are: Non-mesenchymal mimics of benign and malignant soft tissue tumors; Soft tissue tumors with overlapping molecular findings; Recently characterized soft tissue tumors; Benign mimics of sarcoma; Advances in molecular methods in the analysis of soft tissue tumors and therapeutic implications; and Myoepithelial tumors: an update. Leona Doyle and Karen Fritchie lead this issue of experts in soft tissue pathology.

Table of Contents

Section Title Page Action Price
Front Cover Cover
Soft Tissue Pathology:\rDiagnostic Challenges\r i
Copyright\r ii
Contributors iii
CONSULTING EDITOR iii
EDITORS iii
AUTHORS iii
Contents v
Preface: Diagnostic Challenges and Recent Developments in Soft Tissue Pathology\r v
Diagnostically Challenging Epithelioid Soft Tissue Tumors\r v
Diagnostically Challenging Epithelioid Vascular Tumors\r v
Diagnostically Challenging Spindle Cell Neoplasms of the Retroperitoneum\r v
Diagnostically Challenging “Fatty” Retroperitoneal Tumors\r v
Selected Diagnostically Challenging Pediatric Soft Tissue Tumors\r vi
Chondro-Osseous Lesions of Soft Tissue\r vi
Myoepithelial Tumors: An Update\r vi
The New Kids on the Block: Recently Characterized Soft Tissue Tumors\r vi
Non-mesenchymal Mimics of Sarcoma\r vii
Genetics of Gastrointestinal Stromal Tumors: A Heterogeneous Family of Tumors?\r vii
Advances in the Molecular Analysis of Soft Tissue Tumors and Clinical Implications\r vii
SURGICAL PATHOLOGY CLINICS\r viii
FORTHCOMING ISSUES viii
December 2015 viii
March 2016 viii
June 2016 viii
RECENT ISSUES viii
June 2015 viii
March 2015 viii
December 2014 viii
Preface\r ix
Diagnostically Challenging Epithelioid Soft Tissue Tumors 309
ABSTRACT 309
OVERVIEW 309
EPITHELIOID SARCOMA 309
GROSS FEATURES 309
MICROSCOPIC FEATURES 310
DIAGNOSIS 311
DIFFERENTIAL DIAGNOSIS 311
PROGNOSIS 312
ALVEOLAR SOFT PART SARCOMA 313
GROSS FEATURES 313
MICROSCOPIC FEATURES 314
DIAGNOSIS 314
DIFFERENTIAL DIAGNOSIS 314
PROGNOSIS 316
CLEAR-CELL SARCOMA 317
GROSS FEATURES 317
MICROSCOPIC FEATURES 317
DIAGNOSIS 318
DIFFERENTIAL DIAGNOSIS 318
PROGNOSIS 318
OSSIFYING FIBROMYXOID TUMOR 319
GROSS FEATURES 319
MICROSCOPIC FEATURES 320
DIAGNOSIS 321
DIFFERENTIAL DIAGNOSIS 321
PROGNOSIS 322
MALIGNANT EXTRARENAL RHABDOID TUMOR 323
GROSS FEATURES 323
MICROSCOPIC FEATURES 323
DIAGNOSIS 324
DIFFERENTIAL DIAGNOSIS 324
PROGNOSIS 325
ACKNOWLEDGMENTS 325
REFERENCES 325
Diagnostically Challenging Epithelioid Vascular Tumors 331
ABSTRACT 331
OVERVIEW 331
EPITHELIOID HEMANGIOMA 331
CUTANEOUS EPITHELIOID ANGIOMATOUS NODULE 336
EPITHELIOID HEMANGIOENDOTHELIOMA 338
EPITHELIOID SARCOMALIKE HEMANGIOENDOTHELIOMA (PSEUDOMYOGENIC HEMANGIOENDOTHELIOMA) 342
EPITHELIOID ANGIOSARCOMA 346
SUMMARY 349
REFERENCES 349
Diagnostically Challenging Spindle Cell Neoplasms of the Retroperitoneum 353
ABSTRACT 353
OVERVIEW 353
DEDIFFERENTIATED LIPOSARCOMA 353
INTRODUCTION 353
GROSS FEATURES 354
MICROSCOPIC FEATURES 354
DIAGNOSIS AND DIFFERENTIAL DIAGNOSIS 356
PROGNOSIS 357
CELLULAR SCHWANNOMA 357
INTRODUCTION 357
GROSS FEATURES 358
MICROSCOPIC FEATURES 358
DIAGNOSIS AND DIFFERENTIAL DIAGNOSIS 358
PROGNOSIS 360
MALIGNANT PERIPHERAL NERVE SHEATH TUMOR 360
INTRODUCTION 360
GROSS FEATURES 361
MICROSCOPIC FEATURES 361
DIAGNOSIS AND DIFFERENTIAL DIAGNOSIS 362
PROGNOSIS 363
DEEP LEIOMYOMA 364
INTRODUCTION 364
GROSS FEATURES 364
MICROSCOPIC FEATURES 364
DIAGNOSIS AND DIFFERENTIAL DIAGNOSIS 364
PROGNOSIS 366
LEIOMYOSARCOMA 366
INTRODUCTION 366
GROSS FEATURES 367
MICROSCOPIC FEATURES 367
DIAGNOSIS AND DIFFERENTIAL DIAGNOSIS 367
PROGNOSIS 369
MAMMARY-TYPE MYOFIBROBLASTOMA 369
INTRODUCTION 369
GROSS FEATURES 370
MICROSCOPIC FEATURES 370
DIAGNOSIS AND DIFFERENTIAL DIAGNOSIS 370
PROGNOSIS 372
SUMMARY 372
REFERENCES 372
Diagnostically Challenging “Fatty” Retroperitoneal Tumors 375
ABSTRACT 375
OVERVIEW 375
PATTERN 1: MATURE ADIPOSE TISSUE AND ATYPICAL HYPERCHROMATIC STROMAL CELLS 376
PATTERN 2: MATURE ADIPOSE TISSUE WITHOUT CYTOLOGIC ATYPIA 380
PATTERN 3: MATURE ADIPOSE TISSUE WITH ATYPICAL HYPERCHROMATIC STROMAL CELLS ADMIXED WITH UNDIFFERENTIATED PLEOMORPHIC SARCOMA 381
PATTERN 4: MATURE ADIPOSE TISSUE WITH LOW-GRADE SPINDLE-CELL PROLIFERATION 385
PATTERN 5: MYXOID SARCOMA WITH A FATTY COMPONENT 389
SUMMARY 396
REFERENCES 396
Selected Diagnostically Challenging Pediatric Soft Tissue Tumors 399
ABSTRACT 399
SUPERFICIAL EWING SARCOMA: OVERVIEW 399
GROSS FEATURES 399
MICROSCOPIC FEATURES 399
DIFFERENTIAL DIAGNOSIS 400
DIAGNOSIS 404
PROGNOSIS 405
POORLY DIFFERENTIATED CHORDOMA 406
OVERVIEW 406
GROSS FEATURES 406
MICROSCOPIC FEATURES 406
DIFFERENTIAL DIAGNOSIS 406
DIAGNOSIS 409
PROGNOSIS 410
NASAL CHONDROMESENCHYMAL HAMARTOMA 411
OVERVIEW 411
GROSS FEATURES 413
MICROSCOPIC FEATURES 413
DIFFERENTIAL DIAGNOSIS 415
DIAGNOSIS 416
PROGNOSIS 416
REFERENCES 416
Chondro-Osseous Lesions of Soft Tissue 419
ABSTRACT 419
OVERVIEW 419
MYOSITIS OSSIFICANS AND RELATED TUMORS 420
RADIOGRAPHIC FEATURES 421
GROSS FEATURES 421
MICROSCOPIC FEATURES 421
PROGNOSIS 423
GENETIC FEATURES 423
OSSIFYING FIBROMYXOID TUMOR 423
RADIOGRAPHIC FEATURES 424
GROSS FEATURES 425
MICROSCOPIC FEATURES 426
PROGNOSIS 427
GENETIC FEATURES 427
EXTRASKELETAL OSTEOSARCOMA 427
INTRODUCTION 427
RADIOGRAPHIC FEATURES 428
GROSS FEATURES 428
MICROSCOPIC FEATURES 428
PROGNOSTIC FEATURES 429
GENETIC FEATURES 429
SOFT TISSUE CHONDROMA 431
RADIOGRAPHIC FEATURES 431
GROSS FEATURES 431
MICROSCOPIC FEATURES 431
PROGNOSTIC FEATURES 434
GENETIC FEATURES 434
SYNOVIAL CHONDROMATOSIS 435
RADIOGRAPHIC FEATURES 435
GROSS FEATURES 435
MICROSCOPIC FEATURES 435
PROGNOSTIC FEATURES 436
GENETIC FEATURES 436
MESENCHYMAL CHONDROSARCOMA 436
RADIOGRAPHIC FEATURES 436
GROSS FEATURES 438
MICROSCOPIC FEATURES 438
PROGNOSTIC FEATURES 439
GENETIC FEATURES 439
EXTRASKELETAL MYXOID CHONDROSARCOMA 439
RADIOGRAPHIC FEATURES 439
GROSS FEATURES 439
MICROSCOPIC FEATURES 440
PROGNOSTIC FEATURES 441
GENETIC FEATURES 441
REFERENCES 442
Myoepithelial Tumors 445
ABSTRACT 445
The New Kids on the Block 467
ABSTRACT 467
OVERVIEW 467
SUPERFICIAL CD34-POSITIVE FIBROBLASTIC TUMOR 467
PATHOLOGIC FEATURES 468
DIFFERENTIAL DIAGNOSIS 469
FIBROSARCOMA-LIKE LIPOMATOUS NEOPLASM 470
PATHOLOGIC FEATURES 470
DIFFERENTIAL DIAGNOSIS 470
ANGIOFIBROMA OF SOFT TISSUE 473
PATHOLOGIC FEATURES 473
DIFFERENTIAL DIAGNOSIS 475
LOW-GRADE SINONASAL SARCOMA WITH NEURAL AND MYOGENIC FEATURES 476
PATHOLOGIC FEATURES 476
DIFFERENTIAL DIAGNOSIS 479
MALIGNANT GASTROINTESTINAL NEUROECTODERMAL TUMOR 479
PATHOLOGIC FEATURES 480
DIFFERENTIAL DIAGNOSIS 480
HEMOSIDEROTIC FIBROLIPOMATOUS TUMOR 483
PATHOLOGIC FEATURES 483
DIFFERENTIAL DIAGNOSIS 483
EPITHELIOID INFLAMMATORY MYOFIBROBLASTIC SARCOMA 484
PATHOLOGIC FEATURES 486
DIFFERENTIAL DIAGNOSIS 488
RECENT MOLECULAR FINDINGS IN SOFT TISSUE TUMORS 489
REFERENCES 489
Non-mesenchymal Mimics of Sarcoma 493
ABSTRACT 493
OVERVIEW 493
MALIGNANT MELANOMA 493
MELANOMA AND MALIGNANT PERIPHERAL NERVE SHEATH TUMOR 495
MELANOMA AND CLEAR CELL SARCOMA 496
METASTATIC MELANOMA WITH NO KNOWN PRIMARY 496
CARCINOMA TYPES THAT MAY MIMIC SARCOMA (AND VICE VERSA) 497
SARCOMATOID CARCINOMA OF BREAST 497
SARCOMATOID SQUAMOUS CELL CARCINOMA OF SKIN 499
RENAL CELL CARCINOMA, ADRENOCORTICAL CARCINOMA, AND MESENCHYMAL MIMICS 502
HEMATOLYMPHOID NEOPLASMS 503
ACUTE LYMPHOBLASTIC LYMPHOMA VERSUS ROUND CELL SARCOMA 504
HISTIOCYTIC SARCOMA 506
LYMPHOMA WITH SPINDLE CELL FEATURES 506
MALIGNANT MESOTHELIOMA 511
SUMMARY 511
REFERENCES 511
Genetics of Gastrointestinal Stromal Tumors 515
ABSTRACT 515
OVERVIEW 515
GENOTYPES OF GASTROINTESTINAL STROMAL TUMOR 515
KIT MUTATIONS 515
PLATELET-DERIVED GROWTH FACTOR RECEPTOR ALPHA MUTATIONS 516
FAMILIAL GASTROINTESTINAL STROMAL TUMOR SYNDROME 518
SO-CALLED KIT/PLATELET-DERIVED GROWTH FACTOR RECEPTOR ALPHA–WILD-TYPE GASTROINTESTINAL STROMAL TUMORS 518
SUCCINATE DEHYDROGENASE B–DEFICIENT GASTROINTESTINAL STROMAL TUMORS 518
CARNEY-STRATAKIS SYNDROME–RELATED GASTROINTESTINAL STROMAL TUMORS 519
CARNEY TRIAD–RELATED GASTROINTESTINAL STROMAL TUMORS 519
SPORADIC SUCCINATE DEHYDROGENASE–DEFICIENT GASTROINTESTINAL STROMAL TUMORS 520
BRAF-MUTATED GASTROINTESTINAL STROMAL TUMORS 521
NEUROFIBROMATOSIS TYPE 1-ASSOCIATED GASTROINTESTINAL STROMAL TUMORS 522
“QUADRUPLE WILD-TYPE” GASTROINTESTINAL STROMAL TUMORS 522
SUMMARY 522
REFERENCES 522
Advances in the Molecular Analysis of Soft Tissue Tumors and Clinical Implications 525
ABSTRACT 525
OVERVIEW 525
APPLICATIONS OF MASSIVELY PARALLEL SEQUENCING TECHNOLOGIES 527
MASSIVELY PARALLEL SEQUENCING (SO-CALLED NEXT-GENERATION SEQUENCING OR NGS) 527
CANCER GENOME SEQUENCING 528
TARGETED SEQUENCING (CANCER GENE PANELS AND EXOME SEQUENCING) 529
WHOLE GENOME SEQUENCING (WGS) 530
TRANSCRIPTOME SEQUENCING (RNA-SEQ) 531
NON–SEQUENCING-BASED HIGH-THROUGHPUT MOLECULAR TECHNIQUES 532
ARRAY-BASED TECHNOLOGIES 532
LOW-THROUGHPUT TECHNOLOGIES 532
SINGLE GENE SEQUENCING ASSAYS 532
FLUORESCENCE IN SITU HYBRIDIZATION 532
IMMUNOHISTOCHEMISTRY AS A SURROGATE FOR MOLECULAR ALTERATIONS 533
DRUG TARGET IDENTIFICATION 533
CONCLUDING REMARKS 534
REFERENCES 534