SECTION 1: SKIN
SPONGIOTIC AND PSORIASIFORM DERMATOSES
4 Pityriasis Rosea
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
6 Contact Dermatitis
George R. Collins, DO
10 Atopic Dermatitis
Wang L. Cheung, MD, PhD and Karen S. Thompson, MD
12 Perniosis
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
14 Seborrheic Dermatitis
Karen S. Thompson, MD, Angelica R. Putnam, MD, and Wang L. Cheung, MD, PhD
INFLAMMATORY/INTERFACE DERMATOSES
16 Erythema Multiforme and Related Disorders
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
20 Pityriasis Lichenoides
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
VESICOBULLOUS DERMATOSES
24 Acropustulosis of Infancy
Larissa V. Furtado, MD
26 Dermatitis Herpetiformis
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
28 Epidermolysis Bullosa, Inherited
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
32 Erythema Toxicum Neonatorum
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
34 Hailey-Hailey Disease
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
36 Chronic Bullous Disease of Childhood
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
38 Transient Neonatal Pustular Melanosis
Larissa V. Furtado, MD
VASCULAR AND RELATED DISEASES
40 Urticaria and Variants
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
44 Leukocytoclastic Vasculitis
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
PANNICULITIDES
48 Erythema Nodosum
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
52 Subcutaneous Fat Necrosis of Newborn
Jessica M. Comstock, MD and Angelica R. Putnam, MD
54 Sclerema Neonatorum
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
CONNECTIVE TISSUE
56 Lupus Erythematosus
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
62 Morphea/Scleroderma
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
66 Dermatomyositis
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
METABOLIC/DEPOSITION DISEASES
70 Calcinosis Cutis
Dirk Elston, MD and Carly A. Elston, MD
NONINFECTIOUS GRANULOMATOUS DISEASES
74 Chalazion
Larissa V. Furtado, MD
76 Granuloma Annulare
Angelica R. Putnam, MD
PILOSEBACEOUS DISEASE
78 Acne Vulgaris
Viseslav Tonkovic-Capin, MD
ALOPECIAS
80 Trichotillomania
Garth Fraga, MD
DISORDERS OF EPIDERMAL MATURATION AND KERATINIZATION
84 Ichthyosis
Michael W. Peterson, DO
86 Darier Disease
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
88 Porokeratosis
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
92 Incontinentia Pigmenti
Christine J. Ko, MD
DISORDER OF COLLAGEN
94 Aplasia Cutis Congenita
Michael W. Peterson, DO, Nathan Peterson, DO, and Karen S. Thompson, MD
BACTERIAL INFECTIONS
96 Impetigo
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
100 Staphylococcal Scalded Skin Syndrome
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
102 Ecthyma and Ecthyma Gangrenosum
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
104 Cat-Scratch Disease
Irina Margaritescu, MD, PhD and Bruce R. Smoller, MD
110 Atypical Mycobacterial Infections
Cary Chisholm, MD and Karen S. Thompson, MD
VIRAL INFECTIONS
112 Molluscum Contagiosum
Talley Whang, MD
114 Herpesvirus
Christopher Lum, MD, Amity Tran, BA, and Emily Leibovitch, BA
FUNGAL INFECTIONS
116 Candidiasis
Irina Margaritescu, MD, PhD and Bruce R. Smoller, MD
ARTHROPODS/PARASITES
120 Bite Reactions
Atsuko Kodama, MD
124 Scabies
Gonzalo De Toro, MD
CYSTS
126 Epidermal Inclusion Cyst
Larissa V. Furtado, MD
128 Dermoid Cyst
Larissa V. Furtado, MD
SECTION 2: SOFT TISSUE
134 Necrotizing Fasciitis
Brian J. Hall, MD
136 Tumoral Calcinosis
Karen S. Thompson, MD
SECTION 3: BONE AND JOINT
CONGENITAL/GENETIC/HEREDITARY
140 Osteogenesis Imperfecta
Karen S. Thompson, MD
144 Chondrodysplasia Punctata
Karen S. Thompson, MD
148 Thanatophoric Dysplasia
Karen S. Thompson, MD
TRAUMA/INJURY/REACTIVE
150 Bone Fracture and Repair
Karen S. Thompson, MD
154 Osteomyelitis
Karen S. Thompson, MD and Angelica R. Putnam, MD
158 Stress and Costochondral Junction
Karen S. Thompson, MD
160 Juvenile Idiopathic Arthritis
Karen S. Thompson, MD
SECTION 4: SKELETAL MUSCLE
CONGENITAL/GENETIC/HEREDITARY
166 Spinal Muscular Atrophy
Hannes Vogel, MD
168 X-Linked Muscular Dystrophy: Duchenne and Becker
Hannes Vogel, MD
172 Congenital Myopathies
Karen S. Thompson, MD
SECTION 5: CENTRAL NERVOUS SYSTEM
CONGENITAL/GENETIC/HEREDITARY
176 Cerebral Heterotopia and Ectopia
Larissa V. Furtado, MD
178 Focal Cortical Dysplasia
B. K. Kleinschmidt-DeMasters, MD
192 Myelomeningocele
Brock Kaya, MD
194 Encephalocele
Brock Kaya, MD
196 Tethered Cord
Brock Kaya, MD
198 Cerebral Arteriovenous Malformations
Brock Kaya, MD and Angelica R. Putnam, MD
202 Cerebral Cavernous Malformation
Brock Kaya, MD and Angelica R. Putnam, MD
TRAUMA/INJURY/REACTIVE
206 Hypoxic-Ischemic Encephalopathy
Bahig M. Shehata, MD, Cynthia T. Bunting, BS, and Phillip Quigley, BS
210 Periventricular Leukomalacia
Bahig M. Shehata, MD, Nancy Elawabdeh, BS, and Caitlin Cundiff, BS
214 Arachnoid Cysts
Tarik Tihan, MD, PhD and Karen S. Thompson, MD
216 Meningioangiomatosis
Brock Kaya, MD
222 Germinal Matrix-Intraventricular Hemorrhage
Bahig M. Shehata, MD and Nancy Elawabdeh, BS
INFECTIOUS
226 Bacterial Meningoencephalitis
Brock Kaya, MD
232 Fungal Meningoencephalitis
Brock Kaya, MD
238 Viral Meningoencephalitis
Brock Kaya, MD
242 Protozoal Meningoencephalitis
Brock Kaya, MD
SECTION 6: ENDOCRINE
CONGENITAL/GENETIC/HEREDITARY
248 Adrenal Cytomegaly
Arthur S. Tischler, MD
250 Adrenal Heterotopia
Arthur S. Tischler, MD
252 Adrenal Hypoplasia and Malformations
Arthur S. Tischler, MD and Karen S. Thompson, MD
254 Adrenal Cortical Hyperplasia
Arthur S. Tischler, MD
258 Dyshormonogenetic Goiter
Vania Nosé, MD, PhD
264 Ectopic Thyroid
Vania Nosé, MD, PhD
266 Thyroglossal Duct Cyst
Vania Nosé, MD, PhD
268 Cystic Fibrosis, Pancreas
Mari Mino-Kenudson, MD
TRAUMA/INJURY/REACTIVE
270 Stress Reactions in Adrenal Gland
Bahig M. Shehata, MD, Holly C. Jordan, BS, and Erica J. Colvin, MD
272 Hemorrhagic Necrosis of Adrenal Gland
Bahig M. Shehata, MD, Holly C. Jordan, BS, and Sydney R. Archer, BS
274 Chronic Lymphocytic Thyroiditis
Bahig M. Shehata, MD, Brent M. Cone, BS, and Cynthia T. Bunting, BS
278 Graves Disease
Vania Nosé, MD, PhD
284 Hypertrophy of Pancreatic Islets
Jessica M. Comstock, MD
SECTION 7: RESPIRATORY
CONGENITAL/GENETIC/HEREDITARY
288 Bronchogenic Cyst
Bahig M. Shehata, MD, Nancy Elawabdeh, BS, and Charlotte A. Cooper, BS
290 Congenital Alveolar Capillary Dysplasia
Bahig M. Shehata, MD, Ryan J. Cone, BS, and Charlotte A. Cooper, BS
294 Congenital Lobar Emphysema
Jessica M. Comstock, MD and Karen S. Thompson, MD
296 Congenital Pulmonary Lymphangiectasis
Billie Fyfe, MD
298 Diffuse Pulmonary Lymphangiomatosis
Monica P. Revelo, MD, PhD and Brandon T. Larsen, MD, PhD
302 Congenital Pulmonary Airway Malformation
Jessica M. Comstock, MD and Karen S. Thompson, MD
306 Congenital Surfactant Deficiency
Billie Fyfe, MD and Eileen Margaret McKay, MD
310 Cystic Fibrosis
Monica P. Revelo, MD, PhD and Brandon T. Larsen, MD, PhD
314 Sequestrations
Jessica M. Comstock, MD
TRAUMA/INJURY/REACTIVE
316 Aspiration
Monica P. Revelo, MD, PhD and Brandon T. Larsen, MD, PhD
320 Asthma
Angelica R. Putnam, MD
322 Bronchopulmonary Dysplasia
Larissa V. Furtado, MD and Karen S. Thompson, MD
326 Hyaline Membrane Disease
Larissa V. Furtado, MD
328 Interstitial Pulmonary Emphysema
Larissa V. Furtado, MD and Angelica R. Putnam, MD
330 Persistent Pulmonary Hypertension
Larissa V. Furtado, MD
332 Idiopathic Pulmonary Hemosiderosis
Saul Suster, MD
334 Pulmonary Venoocclusive Disease/Pulmonary
Capillary Hemangiomatosis
Bahig M. Shehata, MD, Angelica R. Putnam, MD, and Charlotte A. Cooper, BS
338 Nonspecific Interstitial Pneumonia
Saul Suster, MD
340 Hypersensitivity Pneumonitis
Cesar A. Moran, MD, Neda Kalhor, MD, and Karen S. Thompson, MD
342 Eosinophilic Pneumonia
Cesar A. Moran, MD and Neda Kalhor, MD
INFECTIOUS
346 Adenovirus
Saul Suster, MD and Karen S. Thompson, MD
348 Human Metapneumovirus
Bahig M. Shehata, MD, Samuel N. Jactel, BS, and Nancy Elawabdeh, BS
352 Respiratory Syncytial Virus
Bahig M. Shehata, MD, Samuel N. Jactel, BS, and Nancy Elawabdeh, BS
MISCELLANEOUS
354 Neuroendocrine Cell Hyperplasia of Infancy
Karen S. Thompson, MD
SECTION 8: CARDIOVASCULAR
CONGENITAL/GENETIC/HEREDITARY
358 Arrhythmogenic Right Ventricular Cardiomyopathy
Jagdish Butany, MBBS, MS, FRCPC and Karen S. Thompson, MD
362 Hypertrophic Cardiomyopathy
Vidhya Nair, MBBS, MD, FRCPC
364 Dilated Cardiomyopathy
Jennifer Pogoriler, MD, PhD
368 Fabry Disease
Monica P. Revelo, MD, PhD
372 Fatty Acid Metabolic Disorders
Monica P. Revelo, MD, PhD
374 Glycogen Storage Diseases
Monica P. Revelo, MD, PhD
376 Mitochondrial Myopathies
Monica P. Revelo, MD, PhD
380 Capillary Malformations
Angelica R. Putnam, MD
384 Lymphatic Malformations
Angelica R. Putnam, MD
388 Venous Malformations
Angelica R. Putnam, MD
392 Arteriovenous Malformations and Fistulas
Angelica R. Putnam, MD
TRAUMA/INJURY/REACTIVE
396 Endocardial Fibroelastosis
Monica P. Revelo, MD, PhD
INFECTIOUS
398 Lymphocytic Myocarditis
Monica P. Revelo, MD, PhD
402 Acute Pericarditis
Monica P. Revelo, MD, PhD
406 Acute Rheumatic Fever
Monica P. Revelo, MD, PhD
410 Kawasaki Disease
Vidhya Nair, MBBS, MD, FRCPC
414 COVID-19-Related Pathology and Pediatric
Multisystem Inflammatory Syndrome
Karen S. Thompson, MD
SECTION 9: ALIMENTARY CANAL
ESOPHAGUS
CONGENITAL/GENETIC/HEREDITARY
426 Inlet Patch
Alexandros D. Polydorides, MD, PhD
430 Tracheoesophageal Fistula and Esophageal Atresia
Alexandros D. Polydorides, MD, PhD
434 Esophageal Duplication Cyst
Alexandros D. Polydorides, MD, PhD
TRAUMA/INJURY/REACTIVE
438 Gastroesophageal Reflux Disease
Alexandros D. Polydorides, MD, PhD
444 Eosinophilic Esophagitis
Alexandros D. Polydorides, MD, PhD
INFECTIOUS
448 Herpes Simplex Virus Esophagitis
Laura W. Lamps, MD
450 Candida
Laura W. Lamps, MD
STOMACH
TRAUMA/INJURY/REACTIVE
452 Chemical Gastropathy
Gregory Y. Lauwers, MD and Alexandros D. Polydorides, MD, PhD
456 Chronic Gastritis
Alexandros D. Polydorides, MD, PhD and Staci Bryson, MD
458 Granulomatous Gastritis
Alexandros D. Polydorides, MD, PhD and Gregory Y. Lauwers, MD
462 Lymphocytic Gastritis
Alexandros D. Polydorides, MD, PhD and Gregory Y. Lauwers, MD
468 Eosinophilic Gastroenteritis
Gregory Y. Lauwers, MD and Karen S. Thompson, MD
470 Fundic Gland Polyp
Gregory Y. Lauwers, MD and Alexandros D. Polydorides, MD, PhD
472 Collagenous Gastritis
Alexandros D. Polydorides, MD, PhD and Gregory Y. Lauwers, MD
INFECTIOUS
476 Helicobacter heilmannii Gastritis
Joel K. Greenson, MD and Alexandros D. Polydorides, MD, PhD
478 Helicobacter pylori Gastritis
Alexandros D. Polydorides, MD, PhD and Gregory Y. Lauwers, MD
SMALL BOWEL
CONGENITAL/GENETIC/HEREDITARY
482 Small Intestine Duplication Cyst
Joel K. Greenson, MD and Alexandros D. Polydorides, MD, PhD
484 Ectopic Pancreas
Alexandros D. Polydorides, MD, PhD and Joel K. Greenson, MD
488 Gastric Heterotopia
Joel K. Greenson, MD and Alexandros D. Polydorides, MD, PhD
490 Meckel Diverticulum
Joel K. Greenson, MD and Alexandros D. Polydorides, MD, PhD
492 Microvillous Inclusion Disease
Joel K. Greenson, MD and Alexandros D. Polydorides, MD, PhD
494 Primary Intestinal Lymphangiectasia
Joel K. Greenson, MD and Karen S. Thompson, MD
496 Abetalipoproteinemia
Florette K. Gray Hazard, MD and Karen S. Thompson, MD
500 Tufting Enteropathy
Alexandros D. Polydorides, MD, PhD and Florette K. Gray Hazard, MD
504 Autoimmune Enteropathy
Alexandros D. Polydorides, MD, PhD and Joel K. Greenson, MD
INFLAMMATORY/IMMUNE DYSFUNCTION
508 Celiac Disease
Alexandros D. Polydorides, MD, PhD and Joel K. Greenson, MD
514 Common Variable Immunodeficiency
Joel K. Greenson, MD, Laura W. Lamps, MD, and Alexandros D. Polydorides, MD, PhD
INFECTIOUS
518 Giardia
Laura W. Lamps, MD
520 Cryptosporidium
Laura W. Lamps, MD
APPENDIX
522 Acute Appendicitis
Laura W. Lamps, MD and Karen S. Thompson, MD
526 Granulomatous Appendicitis
Laura W. Lamps, MD
528 Enterobius Vermicularis Appendicitis
Laura W. Lamps, MD
530 Fibrous Obliteration
Scott R. Owens, MD
COLON
CONGENITAL/GENETIC/HEREDITARY
532 Cystic Fibrosis, Intestinal
Kajsa Affolter, MD and Alexandros D. Polydorides, MD, PhD
534 Colonic Duplications, Cysts, and Congenital
Diverticula
Alexandros D. Polydorides, MD, PhD
538 Hirschsprung Disease
Alexandros D. Polydorides, MD, PhD
544 Intestinal Motility Disorders
Scott R. Owens, MD
TRAUMA/INJURY/REACTIVE
546 Diversion Colitis
Alexandros D. Polydorides, MD, PhD and Joel K. Greenson, MD
548 Pneumatosis Intestinalis
Alexandros D. Polydorides, MD, PhD
554 Solitary Rectal Ulcer Syndrome/Mucosal Prolapse
Alexandros D. Polydorides, MD, PhD
560 Necrotizing Enterocolitis
Joel K. Greenson, MD and Alexandros D. Polydorides, MD, PhD
INFLAMMATORY/IMMUNE DYSFUNCTION
562 Eosinophilic/Allergic Colitis
Alexandros D. Polydorides, MD, PhD
568 Focal Active Colitis
Alexandros D. Polydorides, MD, PhD and Joel K. Greenson, MD
570 Crohn Disease
Alexandros D. Polydorides, MD, PhD
582 Ulcerative Colitis
Alexandros D. Polydorides, MD, PhD and Scott R. Owens, MD
590 Collagenous Colitis
Alexandros D. Polydorides, MD, PhD
INFECTIOUS
598 Cytomegalovirus
Laura W. Lamps, MD
604 Entamoeba Histolytica
Laura W. Lamps, MD and Karen S. Thompson, MD
606 Adenovirus
Karen S. Thompson, MD and Laura W. Lamps, MD
608 Acute Infectious Colitis
Laura W. Lamps, MD
610 Pseudomembranous Colitis
Staci Bryson, MD and Angelica R. Putnam, MD
SECTION 10: LIVER/GALLBLADDER
CONGENITAL/GENETIC/HEREDITARY
616 Congenital Hepatic Fibrosis
Romil Saxena, MBBS, MD, FRCPath and Hanlin L. Wang, MD, PhD
618 Caroli Disease
Romil Saxena, MBBS, MD, FRCPath and Joseph Misdraji, MD
620 Cystic Fibrosis, Hepatic
Joseph Misdraji, MD
624 Dubin-Johnson Syndrome
Joseph Misdraji, MD
626 Gilbert Disease
Joseph Misdraji, MD
628 Progressive Familial Intrahepatic Cholestasis
Joseph Misdraji, MD
636 Biliary Atresia
Romil Saxena, MBBS, MD, FRCPath and Grace E. Kim, MD
642 Syndromic Paucity of Intrahepatic Bile Ducts
(Alagille Syndrome)
Romil Saxena, MBBS, MD, FRCPath and Joseph Misdraji, MD
646 Paucity of Intrahepatic Bile Ducts (Nonsyndromic)
Romil Saxena, MBBS, MD, FRCPath and Joseph Misdraji, MD
650 Autoimmune Hepatitis
Lisa Yerian, MD and Karen S. Thompson, MD
656 α-1-Antitrypsin Deficiency
Kari D. Caradine, MD and Angelica R. Putnam, MD
660 Glycogen Storage Disease
Joseph Misdraji, MD, Lisa Yerian, MD, and Grace E. Kim, MD
666 Niemann-Pick Disease
Joseph Misdraji, MD
668 Tyrosinemia
Joseph Misdraji, MD
670 Gaucher Disease
Joseph Misdraji, MD
672 Neonatal Hemochromatosis
Matthew M. Yeh, MD, PhD
674 Wilson Disease
Joseph Misdraji, MD
680 Choledochal Cyst
Laura W. Lamps, MD
TRAUMA/INJURY/REACTIVE
682 Intestinal Failure-Associated Liver Disease (Total
Parenteral Nutrition Injury)
Florette K. Gray Hazard, MD and Angelica R. Putnam, MD
686 Neonatal Hepatitis
Romil Saxena, MBBS, MD, FRCPath and Grace E. Kim, MD
690 Reye Syndrome
Romil Saxena, MBBS, MD, FRCPath and Laura W. Lamps, MD
692 Nonalcoholic Fatty Liver Disease and Nonalcoholic
Steatohepatitis
Matthew M. Yeh, MD, PhD and Karen S. Thompson, MD
696 Primary Sclerosing Cholangitis
Hanlin L. Wang, MD, PhD
700 Venoocclusive Disease
Sanjay Kakar, MD
702 Drug-Related Acute Hepatitis
Sanjay Kakar, MD and Angelica R. Putnam, MD
INFECTIOUS
706 Viral Hepatitis
Lisa Yerian, MD
710 Epstein-Barr Virus
Hanlin L. Wang, MD, PhD and Angelica R. Putnam, MD
714 Herpes Simplex Virus Hepatitis
Sanjay Kakar, MD
716 Cytomegalovirus
Kari D. Caradine, MD
SECTION 11: GENITOURINARY
KIDNEY/URINARY TRACT
GLOMERULAR DISEASES
720 Congenital Nephrotic Syndrome
Mikako Warren, MD
726 Diffuse Mesangial Sclerosis
Mikako Warren, MD
732 Minimal Change Disease
Mikako Warren, MD
740 Focal Segmental Glomerulosclerosis
Mikako Warren, MD and A. Brad Farris, III, MD
752 Acute Postinfectious Glomerulonephritis
Mikako Warren, MD
760 Membranoproliferative Glomerulonephritis
Mikako Warren, MD and A. Brad Farris, III, MD
768 C3 Glomerulonephritis
Lynn D. Cornell, MD
774 Dense Deposit Disease
A. Brad Farris, III, MD
780 Systemic Lupus Erythematosus
Shane Meehan, MB, BCh, Robert B. Colvin, MD, and
Ingeborg Bajema, MD
798 IgA Nephropathy
Mikako Warren, MD
808 Henoch-Schönlein Purpura Nephritis
Mikako Warren, MD
816 Thin Basement Membrane Nephropathy
Mikako Warren, MD
820 Alport Syndrome
Mikako Warren, MD
TUBULOINTERSTITIAL DISEASES
830 Acute Tubular Injury
Shane Meehan, MB, BCh
836 Acute Pyelonephritis
Neeraja Kambham, MD
844 Tubulointerstitial Nephritis With Uveitis
A. Brad Farris, III, MD
848 Primary Hyperoxaluria
Shane Meehan, MB, BCh
VASCULAR DISEASES
850 Fibromuscular Dysplasia (Renal Artery Stenosis)
A. Brad Farris, III, MD
856 Hemolytic Uremic Syndrome, Infection Related and Atypical
Neeraja Kambham, MD and Ivy A. Rosales, MD
862 Vasculitis, ANCA Related
Monica P. Revelo, MD, PhD
CYSTIC AND DEVELOPMENTAL DISEASES
868 Reflux Nephropathy
Sanjay Jain, MD, PhD
872 Polycystic Kidney Disease, Autosomal Recessive
Stephen M. Bonsib, MD
876 Polycystic Kidney Disease, Autosomal Dominant
Anthony Chang, MD
880 Medullary Cystic Kidney Disease/Nephronophthisis
Helen Liapis, MD
882 Renal Dysplasia
Sanjay Jain, MD, PhD and Karen S. Thompson, MD
886 Renal Tubular Dysgenesis
Stephen M. Bonsib, MD
888 Ask-Upmark Kidney
Lynn D. Cornell, MD
REPRODUCTIVE SYSTEM
CONGENITAL/GENETIC/HEREDITARY
890 Accessory Breast Tissue
Jeffrey L. Killeen, MD
892 Cryptorchidism
Steven S. Shen, MD, PhD
896 Testicular Regression Syndrome
Larissa V. Furtado, MD
898 Disorders of Sexual Development
Karen S. Thompson, MD
INFLAMMATORY/IMMUNE DYSFUNCTION
906 Hidradenitis Suppurativa
Jason C. Reutter, MD and Angelica R. Putnam, MD
908 Childhood Behçet Disease
Maria Angelica Selim, MD and Karen S. Thompson, MD
TRAUMA/INJURY/REACTIVE
912 Adnexal (Ovarian) Torsion
Blaise Clarke, MD and Angelica R. Putnam, MD
914 Meconium Periorchitis
Karen S. Thompson, MD
916 Testicular Torsion
Jessica M. Comstock, MD
MISCELLANEOUS
918 Ovarian Cysts
Jeffrey L. Killeen, MD
SECTION 12: HEMATOPOIETIC
LYMPH NODES
REACTIVE LYMPHADENOPATHIES
924 Reactive Follicular Hyperplasia
C. Cameron Yin, MD, PhD and Andrea N. Marcogliese, MD
930 Reactive Paracortical Hyperplasia
C. Cameron Yin, MD, PhD and Andrea N. Marcogliese, MD
938 Progressive Transformation of Germinal Centers
L. Jeffrey Medeiros, MD and Roberto N. Miranda, MD
944 Hyaline-Vascular Castleman Disease
Pei Lin, MD and Andrea N. Marcogliese, MD
950 Dermatopathic Lymphadenitis
Sa A. Wang, MD and Andrea N. Marcogliese, MD
956 Kimura Disease
Roberto N. Miranda, MD, L. Jeffrey Medeiros, MD, and C.
Cameron Yin, MD, PhD
964 Kikuchi-Fujimoto Disease
L. Jeffrey Medeiros, MD and Roberto N. Miranda, MD
974 Rosai-Dorfman Disease
L. Jeffrey Medeiros, MD and Roberto N. Miranda, MD
INFECTIOUS LYMPHADENOPATHIES
984 Infectious Mononucleosis Lymphadenitis
Pei Lin, MD
988 Cat-Scratch Disease
Roberto N. Miranda, MD, L. Jeffrey Medeiros, MD, and Andrea N. Marcogliese, MD
994 Mycobacterial Infection
Tariq Muzzafar, MBBS
1002 Chronic Granulomatous Lymphadenitis
C. Cameron Yin, MD, PhD and Andrea N. Marcogliese, MD
1010 Toxoplasma Lymphadenitis
Carlos E. Bueso-Ramos, MD, PhD and Andrea N. Marcogliese, MD
BLOOD AND BONE MARROW
CONGENITAL/GENETIC/HEREDITARY
1016 Chediak-Higashi Syndrome
David R. Czuchlewski, MD and Andrea N. Marcogliese, MD
1020 Congenital Amegakaryocytic Thrombocytopenia
David R. Czuchlewski, MD and Andrea N. Marcogliese, MD
1024 Congenital Thrombotic Thrombocytopenic Purpura
David R. Czuchlewski, MD and Andrea N. Marcogliese, MD
1028 Congenital Erythrocytosis
David R. Czuchlewski, MD and Andrea N. Marcogliese, MD
1032 Diamond-Blackfan Anemia
David R. Czuchlewski, MD and Andrea N. Marcogliese, MD
1036 Hereditary Spherocytosis
Carla S. Wilson, MD, PhD and Andrea N. Marcogliese, MD
1042 Hereditary Elliptocytosis
Kaaren K. Reichard, MD and Andrea N. Marcogliese, MD
1046 Fanconi Anemia
David R. Czuchlewski, MD and Andrea N. Marcogliese, MD
1050 Pyruvate Kinase Deficiency
Kristin Hunt Karner, MD
1052 Shwachman-Diamond Syndrome
David R. Czuchlewski, MD and Andrea N. Marcogliese, MD
1056 Severe Congenital Neutropenia and Cyclic
Neutropenia
David R. Czuchlewski, MD and Andrea N. Marcogliese, MD
1060 Sickle Cell Anemia
Kristin Hunt Karner, MD
1064 Hemophagocytic Lymphohistiocytosis
Sa A. Wang, MD and Andrea N. Marcogliese, MD
1074 Thalassemia
Kristin Hunt Karner, MD
INFECTIOUS
1080 Infectious Mononucleosis Syndromes
Carla S. Wilson, MD, PhD
1090 Parvovirus B19 Infection
Carla S. Wilson, MD, PhD
MISCELLANEOUS
1094 Transient Erythroblastopenia of Childhood
Kathryn Foucar, MD and Andrea N. Marcogliese, MD
THYMUS
TRAUMA/INJURY/REACTIVE
1096 Acute Thymic Involution
Jessica M. Comstock, MD
