All Stories

  1. Reply: Retro-orbital alveolar softpart sarcoma in a 76-year-old female: case report and review of the literature
  2. Top Ten Differentials to Mull Over for Head and Neck Myoepithelial Neoplasms
  3. Retro-orbital alveolar soft-part sarcoma in a 76-year-old female: case report and review of the literature
  4. Alterations in key signaling pathways in sinonasal tract melanoma. A molecular genetics and immunohistochemical study of 90 cases and comprehensive review of the literature
  5. Mucoepidermoid carcinoma may be devoid of squamoid cells by immunohistochemistry: expanding the histologic and immunohistochemical spectrum of MAML2 ‐ rearranged salivary gland tumours
  6. Low-grade non-intestinal-type sinonasal adenocarcinoma: a histologically distinctive but molecularly heterogeneous entity
  7. Radiotherapy for pediatric adrenocortical carcinoma – Review of the literature
  8. Middle Ear and Temporal Bone Papilloma: A Clinicopathologic Study and Comprehensive Literature Review of 57 Cases
  9. Epstein-Barr Virus-Associated Smooth Muscle Tumors of Larynx: A Clinicopathologic Study and Comprehensive Literature Review of 12 Cases
  10. Data set for reporting of carcinoma of the adrenal cortex: explanations and recommendations of the guidelines from the International Collaboration on Cancer Reporting
  11. Data set for the reporting of pheochromocytoma and paraganglioma: explanations and recommendations of the guidelines from the International Collaboration on Cancer Reporting
  12. Algorithmic Approach to Fibroinflammatory Sinonasal Tract Lesions
  13. Proliferative Verrucous Leukoplakia: An Expert Consensus Guideline for Standardized Assessment and Reporting
  14. Extragonadal Non-gestational Choriocarcinoma with Tonsillar Presentation
  15. Is thyroid core needle biopsy a valid compliment to fine-needle aspiration?
  16. Lobular to Lobule: Metastatic Breast Carcinoma to Olfactory Neuroblastoma
  17. Orbit Solitary Fibrous Tumor: A Proposed Risk Prediction Model Based on a Case Series and Comprehensive Literature Review
  18. Lymphoepithelial Carcinoma of Salivary Gland EBV-association in Endemic versus Non-Endemic Patients: A Report of 16 Cases
  19. Biphenotypic Branchioma: A Better Name Than Ectopic Hamartomatous Thymoma for a Neoplasm with HRAS Mutation
  20. Recurrent DICER1 Hotspot Mutations in Malignant Thyroid Gland Teratomas
  21. Histologic Classification and Molecular Signature of Polymorphous Adenocarcinoma (PAC) and Cribriform Adenocarcinoma of Salivary Gland (CASG)
  22. Don't stop the champions of research now: a brief history of head and neck pathology developments
  23. Primary Thyroid Gland Alveolar Soft Part Sarcoma
  24. Desmoid-Type Fibromatosis
  25. IgG4-Related Sialadenitis
  26. Oral Syphilis
  27. Noninvasive Follicular Thyroid Neoplasm With Papillary-Like Nuclear Features
  28. Inflammatory Myofibroblastic Tumor
  29. Odontoma
  30. Oropharyngeal Squamous Cell Carcinoma in 390 Patients: Analysis of Clinical and Histological Criteria Which Significantly Impact Outcome
  31. Sclerosing Polycystic “Adenosis” of Salivary Glands: A Neoplasm Characterized by PI3K Pathway Alterations More Correctly Named Sclerosing Polycystic Adenoma
  32. Triweekly carboplatin as a potential de-intensification agent in concurrent chemoradiation for early-stage HPV-associated oropharyngeal cancer
  33. NCOA4-RET and TRIM27-RET Are Characteristic Gene Fusions in Salivary Intraductal Carcinoma, Including Invasive and Metastatic Tumors
  34. Tongue Schwannoma: A Clinicopathologic Study of 19 Cases
  35. Impact of chemotherapy regimen on treatment outcomes in patients with HPV-associated oropharyngeal cancer with T4 disease treated with definitive concurrent chemoradiation
  36. Early squamous cell carcinoma of the oral tongue with histologically benign lymph nodes: A model predicting local control and vetting of the eighth edition of the American Joint Committee on Cancer pathologic T stage
  37. Sporadic Neurofibroma of the Tongue Unassociated with Neurofibromatosis Type I: A Clinicopathologic Study of Ten Cases
  38. Interobserver Variability in the Histopathologic Assessment of Extrathyroidal Extension of Well Differentiated Thyroid Carcinoma Supports the New American Joint Committee on Cancer Eighth Edition Criteria for Tumor Staging
  39. Rethinking Malignancy Risk in Indeterminate Thyroid Nodules with Positive Molecular Studies: Southern California Permanente Experience
  40. Inter-observer Variability in the Diagnosis of Proliferative Verrucous Leukoplakia: Clinical Implications for Oral and Maxillofacial Surgeon Understanding: A Collaborative Pilot Study
  41. Noninvasive Follicular Thyroid Neoplasm with Papillary-Like Nuclear Features (NIFTP): Update and Diagnostic Considerations—a Review
  42. Data Set for the Reporting of Carcinomas of the Hypopharynx, Larynx, and Trachea: Explanations and Recommendations of the Guidelines From the International Collaboration on Cancer Reporting
  43. Genetic Characteristics of Aldosterone-Producing Adenomas in Blacks
  44. Meaningful Value Added by Standardized, Internationally Validated, and Evidence-Based Pathology Data Sets for Cancer Reporting of Head and Neck Sites Coordinated by the International Collaboration on Cancer Reporting
  45. The HTN3-MSANTD3 Fusion Gene Defines a Subset of Acinic Cell Carcinoma of the Salivary Gland
  46. Thyroid Gland Solitary Fibrous Tumor: Report of 3 Cases and a Comprehensive Review of the Literature
  47. Hypothalamic Vasopressin-Producing Tumors
  48. A Rainbow of Colors and Spectrum of Textures: An Approach to Oral Mucosal Entities
  49. Radiographic nodal prognostic factors in stage I HPV‐related oropharyngeal squamous cell carcinoma
  50. Data Set for the Reporting of Carcinomas of the Major Salivary Glands: Explanations and Recommendations of the Guidelines From the International Collaboration on Cancer Reporting
  51. Data Set for the Reporting of Ear and Temporal Bone Tumors: Explanations and Recommendations of the Guidelines From the International Collaboration on Cancer Reporting
  52. Data Set for the Reporting of Mucosal Melanomas of the Head and Neck: Explanations and Recommendations of the Guidelines From the International Collaboration on Cancer Reporting
  53. Data Set for the Reporting of Carcinomas of the Nasal Cavity and Paranasal Sinuses: Explanations and Recommendations of the Guidelines From the International Collaboration on Cancer Reporting
  54. Data Set for the Reporting of Carcinomas of the Nasopharynx and Oropharynx: Explanations and Recommendations of the Guidelines From the International Collaboration on Cancer Reporting
  55. Data Set for the Reporting of Nodal Excisions and Neck Dissection Specimens for Head and Neck Tumors: Explanations and Recommendations of the Guidelines From the International Collaboration on Cancer Reporting
  56. Data Set for the Reporting of Oral Cavity Carcinomas: Explanations and Recommendations of the Guidelines From the International Collaboration of Cancer Reporting
  57. Molecular Profiling of Salivary Gland Intraductal Carcinoma Revealed a Subset of Tumors Harboring NCOA4-RET and Novel TRIM27-RET Fusions
  58. CAIX and pax-8 Commonly Immunoreactive in Endolymphatic Sac Tumors: A Clinicopathologic Study of 26 Cases with Differential Considerations for Metastatic Renal Cell Carcinoma in von Hippel-Lindau Patients
  59. A review of the cytomorphological features of NIFTP
  60. Ectomesenchymal Chondromyxoid Tumor
  61. Measuring Depth of Invasion in Early Squamous Cell Carcinoma of the Oral Tongue: Positive Deep Margin, Extratumoral Perineural Invasion, and Other Challenges
  62. Noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) in thyroid tumor classification
  63. Diagnostic Approach to Fine Needle Aspirations of Cystic Lesions of the Salivary Gland
  64. An International Interobserver Variability Reporting of the Nuclear Scoring Criteria to Diagnose Noninvasive Follicular Thyroid Neoplasm with Papillary-Like Nuclear Features: a Validation Study
  65. Head and Neck Kaposi Sarcoma: Clinicopathological Analysis of 11 Cases
  66. Induction chemotherapy followed by concurrent chemoradiation versus concurrent chemoradiation alone in the definitive management of p16-positive oropharyngeal squamous cell carcinoma with low-neck or N3 disease
  67. Epithelial-Myoepithelial Carcinoma
  68. Noninvasive Follicular Thyroid Neoplasm With Papillary-Like Nuclear Features (NIFTP): Achieving Better Agreement By Refining Diagnostic Criteria
  69. Localized Nasopharyngeal Amyloidosis: A Clinicopathologic Series of 7 Cases with a Literature Review
  70. Sinonasal Tract Solitary Fibrous Tumor: A Clinicopathologic Study of Six Cases with a Comprehensive Review of the Literature
  71. Sinonasal Leiomyosarcoma: Clinicopathological Analysis of Nine Cases with Emphasis on Common Association with Other Malignancies and Late Distant Metastasis
  72. Improving margin revision: Characterization of tumor bed margins in early oral tongue cancer
  73. Pathologic Reporting of Tall-Cell Variant of Papillary Thyroid Cancer: Have We Reached a Consensus?
  74. Noninvasive follicular thyroid neoplasm with papillary-like nuclear features: a review for pathologists
  75. Ectopic Hamartomatous Thymoma: A Review Of The Literature With Report Of New Cases And Proposal Of A New Name: Biphenotypic Branchioma
  76. Metastases to the Parathyroid Glands: A Comprehensive Literature Review of 127 Reported Cases
  77. Sinonasal Tract Alveolar Rhabdomyosarcoma in Adults: A Clinicopathologic and Immunophenotypic Study of Fifty-Two Cases with Emphasis on Epithelial Immunoreactivity
  78. Nasopharyngeal Angiofibroma: A Clinical, Histopathological and Immunohistochemical Study of 42 Cases with Emphasis on Stromal Features
  79. New tumor entities in the 4th edition of the World Health Organization classification of head and neck tumors: Nasal cavity, paranasal sinuses and skull base
  80. Thyroglossal Duct Cyst Carcinomas in Pediatric Patients: Report of Two Cases with a Comprehensive Literature Review
  81. Laryngeal Dysplasia, Squamous Cell Carcinoma, and Variants
  82. Update From the 4th Edition of the World Health Organization Classification of Head and Neck Tumours: Tumours of the Ear
  83. Small round blue cell tumors of the sinonasal tract: a differential diagnosis approach
  84. Thyroglossal Duct Cyst Carcinomas: A Clinicopathologic Series of 22 Cases with Staging Recommendations
  85. Cervical lymph node metastasis in adenoid cystic carcinoma of oral cavity and oropharynx: A collective international review
  86. Template for Reporting Results of Biomarker Testing of Specimens From Patients With Thyroid Carcinoma
  87. Nomenclature Revision for Encapsulated Follicular Variant of Papillary Thyroid Carcinoma
  88. Subsets of salivary duct carcinoma defined by morphologic evidence of pleomorphic adenoma,PLAG1orHMGA2rearrangements, and common genetic alterations
  89. Ninety-four cases of encapsulated follicular variant of papillary thyroid carcinoma: A name change to Noninvasive Follicular Thyroid Neoplasm with Papillary-like Nuclear Features would help prevent overtreatment
  90. Inter-Observer Variation in the Pathologic Identification of Extranodal Extension in Nodal Metastasis from Papillary Thyroid Carcinoma
  91. A Clinicopathologic Series of 685 Thyroglossal Duct Remnant Cysts
  92. Update on follicular variant of papillary thyroid carcinoma with an emphasis on new terminology: noninvasive follicular thyroid neoplasm with papillary-like nuclear features
  93. Inter-Observer Variation in the Pathologic Identification of Minimal Extrathyroidal Extension in Papillary Thyroid Carcinoma
  94. Cervical Lymph Node Metastasis in Adenoid Cystic Carcinoma of the Larynx: A Collective International Review
  95. Cervical Lymph Node Metastasis in High-Grade Transformation of Head and Neck Adenoid Cystic Carcinoma: A Collective International Review
  96. Update on Select Benign Mesenchymal and Meningothelial Sinonasal Tract Lesions
  97. Salivary acinic cell carcinoma: reappraisal and update
  98. Early Oral Tongue Squamous Cell Carcinoma
  99. Sinonasal renal cell–like adenocarcinomas: robust carbonic anhydrase expression
  100. Low-Grade Fibromyxoid Sarcoma of the Head and Neck: A Clinicopathologic Series and Review of the Literature
  101. Orphan tumor: High grade transformation of acinic cell carcinoma
  102. In Reply
  103. Adenoid cystic carcinoma of the head and neck – An update
  104. Angioleiomyoma of the Sinonasal Tract: Analysis of 16 Cases and Review of the Literature
  105. Molecular Characterization of Apocrine Salivary Duct Carcinoma
  106. Sox10—A Marker for Not Only Schwannian and Melanocytic Neoplasms But Also Myoepithelial Cell Tumors of Soft Tissue
  107. Salivary Duct Carcinoma
  108. Rhabdomyoblastic Differentiation in Head and Neck Malignancies Other Than Rhabdomyosarcoma
  109. Papillary Cystadenoma of Minor Salivary Glands: Report of 11 Cases and Review of the English Literature
  110. Sinonasal Tract Neurofibroma: A Clinicopathologic Series of 12 Cases with a Review of the Literature
  111. Parotid Gland Nodular Fasciitis: A Clinicopathologic Series of 12 Cases with a Review of 18 Cases from the Literature
  112. Nuclear expression and gain-of-function β-catenin mutation in glomangiopericytoma (sinonasal-type hemangiopericytoma): insight into pathogenesis and a diagnostic marker
  113. Functional Histology of Salivary Gland Pleomorphic Adenoma: An Appraisal
  114. Salivary duct carcinoma and the concept of early carcinoma ex pleomorphic adenoma
  115. Paraneoplastic syndromes in patients with laryngeal neuroendocrine carcinomas: clinical manifestations and prognostic significance
  116. Spindle Cell Lipoma of the Tongue: A Clinicopathologic Study of 8 Cases and Review of the Literature
  117. Hotspot activating PRKD1 somatic mutations in polymorphous low-grade adenocarcinomas of the salivary glands
  118. Canalicular Adenoma: A Clinicopathologic and Immunohistochemical Analysis of 67 Cases with a Review of the Literature
  119. NovelPRKDgene rearrangements and variant fusions in cribriform adenocarcinoma of salivary gland origin
  120. Evaluation of PAX2 and PAX8 Expression in Salivary Gland Neoplasms
  121. Oncocytic Lipoadenoma of the Salivary Gland: A Clinicopathologic Analysis of 7 Cases and Review of the Literature
  122. Carcinoma Ex-Schneiderian Papilloma (Malignant Transformation): A Clinicopathologic and Immunophenotypic Study of 20 Cases Combined with a Comprehensive Review of the Literature
  123. Double reporting and second opinion in head and neck pathology
  124. The Sinonasal Tract: Another Potential “Hot Spot” for Carcinomas with Transcriptionally-Active Human Papillomavirus
  125. Acute Necrotizing Herpetic Tonsillitis: A Report of Two Cases
  126. Ameloblastic Fibro–Odontoma
  127. Biopsy Interpretation of the Upper Aerodigestive Tract and Ear, 2nd edition (Biopsy Interpretation Series)
  128. Definitive treatment of androgen receptor-positive salivary duct carcinoma with androgen deprivation therapy and external beam radiotherapy
  129. Sinonasal Tract and Nasopharyngeal Adenoid Cystic Carcinoma: A Clinicopathologic and Immunophenotypic Study of 86 Cases
  130. Sinonasal respiratory epithelial adenomatoid hamartomas: Series of 51 cases and literature review
  131. An Update on Salivary Gland Pathology
  132. Causes of death of patients with laryngeal cancer
  133. Molecular diagnostic alterations in squamous cell carcinoma of the head and neck and potential diagnostic applications
  134. The importance of histological types for treatment and prognosis in laryngeal cancer
  135. Benign neoplasms of the larynx, hypopharynx, and trachea
  136. Intracranial mucocele formation in the context of longstanding chronic rhinosinusitis: A clinicopathologic series and literature review
  137. Endoscopic Management of Recurrent Anterior Skull Base Schwannoma
  138. Preface
  139. Non-neoplastic lesions of the parathyroid gland
  140. Non-neoplastic lesions of the larynx, hypopharynx, and trachea
  141. Malignant neoplasms of the thyroid gland
  142. Malignant neoplasms of the salivary glands
  143. Malignant neoplasms of the parathyroid gland
  144. Malignant neoplasms of the nasal cavity, paranasal sinuses, and nasopharynx
  145. Malignant neoplasms of the larynx, hypopharynx, and trachea
  146. Malignant neoplasms of the ear and temporal bone
  147. Benign neoplasms of the thyroid gland
  148. Benign neoplasms of the parathyroid gland
  149. Benign neoplasms of the nasal cavity, paranasal sinuses, and nasopharynx
  150. Benign neoplasms of the ear and temporal bone
  151. Prognostic biological features in neck dissection specimens
  152. Oral Alveolar Soft Part Sarcoma in Childhood and Adolescence: Report of Two Cases and Review of Literature
  153. Sinonasal Tract Adenoid Cystic Carcinoma Ex-Pleomorphic Adenoma: A Clinicopathologic and Immunophenotypic Study of 9 Cases Combined with a Comprehensive Review of the Literature
  154. Incisional or core biopsies of salivary gland tumours: how far should we go?
  155. Middle Ear Adenomas Stain for Two Cell Populations and Lack Myoepithelial Cell Differentiation
  156. Sinonasal tumors: a clinicopathologic update of selected tumors
  157. Ectopic Sphenoid Sinus Pituitary Adenoma (ESSPA) with Normal Anterior Pituitary Gland: A Clinicopathologic and Immunophenotypic Study of 32 Cases with a Comprehensive Review of the English Literature
  158. Sinonasal Tract Mucoepidermoid Carcinoma: A Clinicopathologic and Immunophenotypic Study of 19 Cases Combined with a Comprehensive Review of the Literature
  159. Biomarkers predicting malignant progression of laryngeal epithelial precursor lesions: a systematic review
  160. Parotid Gland Solitary Fibrous Tumor: A Case Report and Clinicopathologic Review of 22 Cases from the Literature
  161. Lymphadenoma of the salivary gland: clinicopathological and immunohistochemical analysis of 33 tumors
  162. Orbital Infantile Myofibroma: a Case Report and Clinicopathologic Review of 24 Cases from the Literature
  163. Compound Odontoma
  164. Intradural, extramedullary spinal cord granular cell tumor: A case report and clinicopathologic review of the literature
  165. Primary Paraganglioma of the Parathyroid: A Case Report and Clinicopathologic Review
  166. Olfactory Neuroblastoma
  167. Primary Extracranial Meningiomas: An Analysis of 146 Cases
  168. Malacoplakia of the tongue: a case report and clinicopathologic review of 6 cases
  169. Larynx
  170. What is a small round blue cell tumour anyway?
  171. Ceruminous Gland Carcinomas: A Clinicopathologic and Immunophenotypic Study of 17 Cases
  172. Epstein–Barr Virus and Human Herpes Virus-8 are not Associated with Juvenile Nasopharyngeal Angiofibroma
  173. Solitary Fibrous Tumor of the Larynx
  174. Update on Nasopharyngeal Carcinoma
  175. Sinonasal Tract Angiosarcoma: A Clinicopathologic and Immunophenotypic Study of 10 Cases with a Review of the Literature
  176. Routine Histologic Examination is Unnecessary for Tonsillectomy or Adenoidectomy
  177. Head and Neck Pathology. Edited by Lester D. R. Thompson, M.D., Elsevier Publishing, 2006
  178. Sinonasal carcinomas
  179. Pheochromocytoma
  180. Diffuse Sclerosing Variant of Papillary Thyroid Carcinoma: A Clinicopathologic and Immunophenotypic Analysis of 22 Cases
  181. Polymorphous Low-Grade Adenocarcinoma
  182. Management of melanotic neuroectodermal tumor of infancy
  183. HIV-Associated Hodgkin Lymphoma : A Clinicopathologic and Immunophenotypic Study of 45 Cases
  184. Endoscopic Management of Intratracheal Ectopic Thyroid
  185. Kimura Disease
  186. Ceruminous Adenomas
  187. Mesenchymal chondrosarcoma of sinonasal cavity: a case report and brief literature review
  188. Squamous cell carcinoma variants of the head and neck
  189. Nasal glial heterotopia: a clinicopathologic and immunophenotypic analysis of 10 cases with a review of the literature
  190. Malignant transformation of a dysembryoplastic neuroepithelial tumor after radiation and chemotherapy
  191. Adrenal Cortical Neoplasms in the Pediatric Population
  192. Sinonasal-Type Hemangiopericytoma
  193. Polymorphous hemangioendothelioma of the neck
  194. Sinonasal Tract and Nasopharyngeal Melanomas: A Clinicopathologic Study of 115 Cases With a Proposed Staging System
  195. Mesenchymal Chondrosarcoma of the Sinonasal Tract: A Clinicopathological Study of 13 Cases With a Review of the Literature
  196. Malignant giant cell tumor of the sphenoid
  197. Primary Ear and Temporal Bone Meningiomas: A Clinicopathologic Study of 36 Cases with a Review of the Literature
  198. Metastatic renal cell carcinoma to the thyroid gland
  199. Chondrosarcoma of the Larynx
  200. Pheochromocytoma of the Adrenal Gland Scaled Score (PASS) to Separate Benign From Malignant Neoplasms
  201. Adenoma versus Carcinoid Tumor of the Middle Ear: a Study of 48 Cases and Review of the Literature
  202. Spindle Cell (Sarcomatoid) Carcinomas of the Larynx
  203. Hodgkin-like transformation of a marginal zone B-cell lymphoma of the larynx
  204. Telecytology: Intraobserver and interobserver reproducibility in the diagnosis of cervical-vaginal smears
  205. Giant Cell Tumor of the Larynx: A Clinicopathologic Series of Eight Cases and a Review of the Literature
  206. Corticomedullary mixed tumor of the adrenal gland
  207. Nodular fasciitis of the external ear region: A clinicopathologic study of 50 cases
  208. Mast cell involvement in fibrodysplasia ossificans progressiva
  209. A clinicopathologic and immunohistochemical study of 35 anaplastic carcinomas of the pancreas with a review of the literature
  210. Adenosquamous Carcinoma Of The Pancreas: A Clinicopathologic Series Of 25 Cases
  211. Sinonasal Tract Eosinophilic Angiocentric Fibrosis
  212. Primary osteosarcoma of the head and neck in pediatric patients
  213. Minimally Invasive Follicular Thyroid Carcinoma
  214. A clinicopathologic study of minimally invasive follicular carcinoma of the thyroid gland with a review of the English literature
  215. Sinonasal mucosal malignant melanoma: Report of an unusual case mimicking schwannoma
  216. Renal cell carcinoma to the pancreas in surgical pathology material
  217. Overexpression of cathepsin B and urokinase plasminogen activator is associated with increased risk of recurrence and metastasis in patients with chondrosarcoma
  218. Primary chondrosarcoma of the head and neck in pediatric patients
  219. Malignant Lymphoma of the Thyroid Gland
  220. Extracranial Sinonasal Tract Meningiomas
  221. Primary thyroid teratomas
  222. Kaposi sarcoma of major salivary gland origin
  223. Polymorphous low grade adenocarcinoma
  224. Exophytic and Papillary Squamous Cell Carcinomas of the Larynx: A Clinicopathologic Series of 104 Cases
  225. Basaloid squamous cell carcinoma of the sinonasal tract
  226. Mucinous Cystic Neoplasm (Mucinous Cystadenocarcinoma of Low-Grade Malignant Potential) of the Pancreas
  227. A rationale for conservative management of microscopic papillary carcinoma of the thyroid gland: a clinicopathologic correlation of 90 cases
  228. A clinicopathologic and immunohistochemical study of ten pancreatic lymphangiomas and a review of the literature
  229. The clinical importance of cystic squamous cell carcinomas in the neck
  230. Thyroid papillary carcinoma of columnar cell type
  231. Primary ameloblastoma of the sinonasal tract
  232. Diagnostically challenging lesions in head and neck pathology
  233. Primary smooth muscle tumors of the thyroid gland
  234. Oncocytomas of the submandibular gland: A series of 22 cases and a review of the literature
  235. Peripheral nerve sheath tumors of the thyroid gland: A series of four cases and a review of the literature
  236. Lymphoid Changes of the Nasopharyngeal and Palatine Tonsils that are Indicative of Human Immunodeficiency Virus Infection
  237. Monoclonal Origins of Malignant Mixed Tumors (Carcinosarcomas)