RSNA2018读片会、每日病例挑战答案公布
近日，本号发布了RSNA2018读片会及每日病例挑战共83个病例的资料，并已在相应的留言区发布了病例的答案。现将这83个病例的答案集中发布，以飨读者。
另外，本号第一次使用语音朗读功能，附上由 讯飞快读小程序 提供的语音朗读音频，方便大家跟读。
RSNA2018读片会病例挑战（1）：男，10岁，发热、疲乏5天，意识障碍
Autoimmune Glial Fibrillary Acidic Protein (GFAP) Astrocytopathy
RSNA2018读片会病例挑战（2）：女，37岁，左乳进行性无痛性增大1年
Giant Pseudoangiomatous Stromal Hyperplasia (PASH)
Sarcoid-like granulomatosis of the lung
RSNA2018读片会病例挑战（4）：57岁女性，劳累后气短三月，伴疲劳及游走性背痛
Erdheim-Chester (non-Langerhans-cell histiocytosis)
RSNA2018读片会病例挑战（5）：66岁，慢性腹痛急性加重，既往有痛风、高血压及“先天性肺气肿”病史
Proteus Syndrome
RSNA2018读片会病例挑战（6）：63岁女性，右腹痛，体重下降5kg，既往有长期癫痫史
Perivascular epithelioid cell tumor (PEComa)
RSNA2018病例（7）：男，60余岁，全身疼痛、疲乏、肌力弱及步态异常数年，有多发骨折、前列腺癌史，右大腿疼痛不适2-3年
Phosphaturic Mesenchymal Tumor
RSNA2018读片会病例挑战（8）：女，2岁，腹胀、肾脏异常，活检病理报“Wilms瘤”
PIK3CA-Related Overgrowth Spectrum (PROS): CLOVES Syndrome
RSNA2018：Sunday Case of the Day（Unknown Cases）
1、Galactocele in a breast-feeding woman；
2、AORPA (Anomalous origin of the right pulmonary artery from the ascending aorta)；
3、Epipericardial fat necrosis；
4、Bouveret’s syndrome；
5、Hepatosplenic candidiasis with mycotic hepatic artery pseudoaneurysm；6、Tension hematocele causing testicular ischemia；
7、Giant Cell Arteritis
8、Recurrent prostate carcinoma with right pelvic lymph node metastasis and coexisting Paget’s disease；
9、Retained RAY-TEC Sponge (Gossypiboma/Textiloma)
10、Invasive Aspergillosis；
11、Complex Regional Pain Syndrome (Reflex Sympathetic Dystrophy)；
12、Tuberous sclerosis；
13、Alobar holoprosencephaly
14、C. External source of radiation being partially blocked by the edge of thecamera crystal；
15、Hepatic adenoma, likely inflammatory subtype given demographics and presence of metabolic syndrome and hepatic steatosis
RSNA2018：Monday Case of the Day（Unknown Cases）
1、Extreme weight loss (cachexia)；
2、Carney complex with left atrial myxoma and pituitary adenoma；
3、Tracheal Amyloidosis；
4、Left acetabulum, superior/inferior rami fractures and traumatic arteriovenous fistula；
5、NSAID Enteropathy/Diaphragm Disease；
6、B-cell lymphoma
7、Midaortic S (Williams Syndrome)
8、Recurrent well differentiated carcinoid tumor；
9、Erdheim-Chester Disease (Lipid Granulomatosis)；
10、Susac Syndrome；
11、Lipomatous hypertrophy of the interatrial septum (LHIS)；
12、Twin to twin transfusion syndrome；
13、Malrotation with midgut volvulus
14、Correct Answer: c. Tissue Harmonic Imaging；
15、Acute appendicitis diagnosed on transvaginal ultrasound
RSNA2018：Tuesday Case of the Day（Unknown Cases）
1、Primary osteosarcoma of the breast；
2、Endocardial Fibroelastosis (EFE)；
3、Pulmonary Hemosiderosis；
4、Penetrating gallbladder trauma
5、Zollinger-Ellison syndrome secondary to gastrinoma；
6、Zinner Syndrome；
7、Insulinoma；
8、Breast carcinoma with left axillary and mediastinal lymph node metastasis and sternal metastasis
9、Brodie’s Abscess；
10、Posterior fossa craniopharyngioma；
11、Cardiac amyloidosis with history of renal transplant；
12、Placenta percreta
13、Subcutaneous granuloma annulare (SGA)；
14、B. Signal void due to T2 shortening at higher gadolinium concentrations.
15、Nephroptosis
RSNA2018：Wednesday Case of the Day（Unknown Cases）
1、Metastatic lung carcinoma to breast and mediastinal lymph nodes；
2、Caseous Calcification of the Mitral Annulus；
3、Pulmonary Langerhans Cell Histiocytosis（PLCH）；
4、Craniocervical dissociation with right type III occipital condyle fracture and atlantoaxial dislocation；
5、Annular Pancreas
6、Buschke-Lowenstein Tumor (Giant Condyloma Acuminatum) with malignant transformation to squamous cell carcinoma；
7、Klippel-Trenaunay Syndrome
8、consistent with Dementia with Lewy bodies (DLB)；
9、Tophaceous Gout；
10、CLIPPERS (Chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids)；
11、Peritoneal Carcinomatosis in the setting of metastatic breast carcinoma
12、Congenital high airway obstruction syndrome (CHAOS)；
13、Spinal osteoid osteoma；
14、B - Patient’s Hair is the cause of Artifact in 2D-FFDM
15、Deep Pelvic Endometriosis
RSNA2018：Thursday Case of the Day（Unknown Cases）
1、Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL)；
2、Twisted LVAD outflow graft causing flow obstruction；
3、Actinomycosis
4、Bilateral thrombophlebitis of superior ophthalmic vein secondary to sinusitis；
5、Anorectal Leiomyoma；
6、Birt-Hogg-Dube Syndrome (with multiple right renal chromophobe tumor and lung cysts)；
7、Ruptured/bleeding angiomyolipoma in patient with tuberous sclerosis
8、ATTR Cardiac Amyloidosis, confirmed by genetic testing；
9、Dissociated right hip arthroplasty acetabular cup liner；
10、Walker-Warburg Syndrome
11、Immune Checkpoint Inhibitor Related Pneumonitis(Immune-Related Adverse Event)；
12、triplet gestation with spontaneous rupture of uterus and extrusion of one of the fetuses；
13、Recurrent respiratory papillomatosis；
14、Motion artifact
15、Appendiceal mucocele due to low-grade appendiceal mucinous neoplasm