The cover shows ALK rearranged renal cell carcinoma, which demonstrates heterogeneous morphology. For more information, see the paper by Kuroda et al, this issue (p 2564).

The cover shows SARS immunohistochemical staining in lung and airways from a patient with COVID-19 (SARS-CoV-2 infection). For more information, see the paper by Schaefer et al, p 2104, this issue.

The cover shows histologic examination of a xanthogranulomatous epithelial tumor, revealing a circumscribed lesion with a fibrous capsule and surrounding lymphoid aggregates. For more information, see the paper by Fritchie et al, this issue (p 1889).

Images used to create a virtual immunohistochemistry neural network training set (left to right, top to bottom): Hematoxylin and eosin staining of formalin-fixed paraffin-embedded tissue; immunohistochemistry; registering and processing of images; creation of a ground truth mask. For more information, see the paper by Jackson et al, p 1640, this issue.

The cover shows Gleason grade 4 cribriform and glomeruloid growth patterns in prostate cancer. For more information, see the paper by Hollemans et al, p 1618, this issue.

The cover shows bone marrow aspirate smears and reticulin stains from two cases of acute myeloid leukemia. For more information, see the paper by Xie et al, this issue(p 1389).

The cover shows histologic changes in the lungs of patients with COVID-19. For more information, see the paper by Tian et al, this issue (p 1007).

The paper in this issue by Nagai et al (p 971) shows that metachronous intraductal papillary mucinous neoplasms disseminate via the pancreatic duct following resection. The cover shows the clinicopathological course before and after recurrence in a representative patient with intraductal dissemination.

The cover schematic representations of PRKACA fusions and intraductal oncocytic papillary neoplasms from pancreas and intrahepatic bile ducts. For more information, see the paper by Vyas et al, p 648, this issue.

Cover:The cover shows a case of FET-TFCP2 rhabdomyosarcoma with small nuclear cytomorphology. For more about TFCP2 fusions and ALK upregulation in epithelioid and spindle cell rhabdomyosarcomas, see the paper in this issue by Le Loarer et al. (p 404).

The cover shows BAP1-mutations in localized pleural mesothelioma. For more information see the paper by Hung et al., this issue (p. 271).

The cover shows that human papillomavirus transcription in conjunctival in situ squamous carcinoma is characteristic of abortive infection. For more information, see the paper by Griffin et al, this issue (p 74).