- idiopathic juvenile osteoporosis [DOID:12559]
An osteoporosis with no known cause that is characterized by pain in the back and extremities, walking difficulties, multiple fractures, and radiological evidence of osteoporosis.
- aleukemic leukemia cutis [DOID:6003]
An aleukemic leukemia that is characterized by the infiltration of the skin and subcutaneous tissue by leukemic cells without evidence of leukemia in the bone marrow and peripheral blood.
- mild pre-eclampsia [DOID:10590]
A pre-eclampsia characterized by the presence of hypertension without evidence of end-organ damage, in a woman who was normotensive before 20 weeks' gestation.
- multisystem inflammatory syndrome in children [DOID:0080711]
A Coronavirus infectious disease that is characterized by a patient aged less than 21 years with fever, laboratory evidence of inflammation, and evidence of clinically severe illness requiring hospitalization, with multisystem organ involvement (cardiovascular, dermatologic, gastrointestinal, hematologic, neurologic, renal, or respiratory) who tested positive for SARS-CoV-2 or had exposure to COVID-19.