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. He joined the brand in March of 2023 as an editor before being promoted to senior editor in January 2024. Fitch graduated from Youngstown State University in Youngstown, Ohio in 2020 with a degree in telecommunications and journalism. He started his career as a news and sports videographer before becoming an on-air sports anchor at the NBC-affiliated news station in Youngstown. Fitch briefly worked as a national content writer for a Chicago-based national television station before joining the 

team. He can be reached at: jfitch@mjhlifesciences.com.

Articles

Fitusiran is administered subcutaneously starting once every 2 months for patients aged 12 years and older with hemophilia A or hemophilia B, with or without factor VIII or IX inhibitors. 

FDA approves fitusiran for hemophilia A, B patients aged 12 years and up

 and joined the MJH Life Sciences team in December 2019. She graduated from Youngstown State University in 2019 with a bachelor's degree in journalism and a minor in political science. Prior to graduating, Morgan worked as the editor-in-chief of her college newspaper. She went on to work as an assignment editor at a broadcast news station in Youngstown, Ohio before joining 

 You can reach her at mpetronelli@mjhlifesciences.com.

A look ahead to 5 key regulatory decisions scheduled to take place during the second quarter of 2025, from a monoclonal antibody to topical psoriasis treatments. 

5 pediatric FDA decisions to watch for in Q2 2025

Mesoblast's remestemcel-L (Ryoncil) was approved by the FDA on December 18, 2024 to treat SR-aGVHD in patients 2 months and older. Now, it is available for purchase. 

Remestemcel-L now available to treat steroid-refractory acute graft-versus-host disease

Peter Lio, MD, offers thoughts on recent atopic dermatitis data reported for lebrikizumab.

Peter Lio, MD, highlights recent lebrikizumab data to treat atopic dermatitis

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New data from ECZTRA 6 show improved sleep quality, itch relief and quality of life among teenagers treating atopic dermatitis with the IL-13 inhibitor.

Tralokinumab benefits adolescent eczema patient-reported outcomes at 16 weeks

Novavax nears maternal immunization results for RSV vaccine

**Editor's Note** Please note that starting January 1, 2025, we will be switching to an online-exclusive publication process. This will allow us to publish case submissions quicker without having to deal with the variables that come along with print publication. All cases will still be eligible for print publication consideration, but publication in our print magazine is not guaranteed and will be up to the editor's discretion. 

Do you have a puzzling pediatric case that you’d like to share with the readers of 

We are looking for intriguing diagnoses that have stumped the experts—a diagnostic “Puzzler”—to help our physicians enhance their day-to-day practices. If you have such a story to tell, tell us.

Here’s what to do: Before you begin, we suggest that first you review the Puzzler 

https://www.contemporarypediatrics.com/case-studies

. Please note the specific style required for writing Puzzler manuscripts.

Next, prepare a draft of your case, including a summary of the presenting symptoms, a case overview, a 

table of the differential diagnosis (MANDATORY)

, and the special aspects of your case that qualify it as a Puzzler, and send it to us. Please note that the differential diagnosis table should also be discussed in the body text. We’ll review your draft and let you know what you need to add or revise before we send the manuscript to peer review for evaluation.

Puzzlers vary in length, and we suggest a minimum of 1,200 words up to a maximum of 2,000 words, but that is because of the complexity of some cases and whether some patients returned for many assessments before their diagnoses were determined. Also, some authors describe the pathophysiology of the differentials in great detail. Please also note no more than 3 authors are allowed per article.

What's most important is to show us the process that you used to analyze the case, including:

Why you decided to order certain tests and why you did not order others.

Peer consultations or why you elected to contact other specialists.

Lab values including vital signs or blood tests.

Labs and values if your patient was attended to in the emergency department or other hospital departments such as radiology or neurology.

Discussion related to the possible diagnoses.

Final diagnosis, treatment, prognosis, and follow-up.

Remember to indicate numbered citations within the body of the text and include a complete list of corresponding literature/references at the end of the manuscript. (Do not use any citation management programs or unlink them.) 

Limit references to 25. No references (unless it is a seminal study) can be older than 10 years.

We prefer primary research as references, but some cases are so obscure that authors will need to pull from a variety of sources. However, 

. Be advised that peer reviewers are adamant that the disease/disorder you describe was actually diagnosed and not determined by index of suspicion on the basis of ruling out various differentials. We use AMA11 as our publication style, which uses superscript citation numbers and a corresponding numbered reference list. Please create your citations and references in this style.  Check this recent article posted online at 

https://www.contemporarypediatrics.com/view/the-rx-of-adhd

 for examples of reference style. IMPORTANT NOTE WITH AMA 11TH EDITION: PLEASE PUT DOI OR WEBSITES/URLS AT THE END OF THE REFERENCE LINE.

When you send your draft manuscript, also 

. These image files must be high-resolution jpg or tiff files (minimum of 300 dpi) and as large in size as possible. We suggest a minimum of 7 horizontal inches. The images must be original photos with clear permissions to use, not images from copyrighted sources. Send as separate attachments with your e-mail submission; do not embed images into your manuscript document.

After we receive your manuscript, our editors and peer reviewers will review your draft and let you know if we accept your submission for publication. 

Puzzler is one of the departments for which we receive the most submissions, so it may be several months after submission before you receive feedback from us.

If we do accept your submission for publication, we will contact you with further instructions.

Send your submissions in Microsoft Word format to 

, via e-mail to mpetronelli@mjhlifesciences.com

Guidelines for PUZZLER, Contemporary Pediatrics

 poll. Take a look at the following case below. After reading through the description, choose a multiple choice answer and try to guess the correct patient diagnosis. 

 on Wednesday, March 26, 2025 at 12:00 PM ET or later for the full case presentation, differential diagnoses, and the correct patient diagnosis. The full case will be presented as a separate article on our home page.

This case was presented by Ngozi I. Eboh, MD, FAAP, FHM, Department of Pediatrics, Texas Tech University Health Sciences Center, Lubbock, Texas

A 13-year-old female with a history of iron deficiency anemia presented with altered mental status preceded by 5 days of headache, vomiting, nausea, and worsening somnolence that was not responsive to flumazenil, naloxone, or ammonia salts. She had a Glasgow coma scale of 12 and was drowsy with no cranial nerve deficits, or other abnormal physical examination findings. Laboratory evaluation showed microcytic anemia (hemoglobin 7.7 g/dL and MCV (mean corpuscular volume):64.7, lymphocytosis, and mildly elevated liver enzymes [Aspartate Aminotransferase (AST) 52, Alanine Transaminase (ALT) 110] otherwise her electrolytes and kidney function were normal. 

Urine toxicology, Tylenol level, Salicylate level, alcohol level thyroid studies, iron studies, hepatitis panel were normal. Urine pregnancy and COVID tests were negative. Head computed tomography (Head CT) showed mild hydrocephalus, and brain magnetic resonance imaging (MRI) showed increased signal folia and compression of the lower portion of the fourth ventricle and foramen of Magendie. 

She then had an emergency external ventricular drain placed (EVD) by pediatric neurosurgery, and the team started her on high-dose steroids and intravenous immunoglobulin (IVIG). On the third day of admission, she developed new onset left-sided facial drooping, drooling, downbeat nystagmus, and difficulty following commands. An emergent subcortical craniectomy and decompression, duraplasty, and cerebellar biopsy were performed. A cerebellar biopsy was performed due to findings on brain MRI.

Click here for the full case presentation, differential diagnoses, and the correct patient diagnosis.

Can you diagnose this patient? Take our poll and find out! Then check back for the full case, differential diagnosis, and correct diagnosis. 

News

Case Studies

Poll: Can you diagnose this 13-year-old female with altered mental status?

 on Monday, March 24, 2025 at 12:00 PM ET or later for the full case presentation, differential diagnoses, and the correct patient diagnosis. 

This case was provided by Muhammad Aamir Anees and Bernard A. Cohen, MD

Want more puzzler and dermatology cases? 

A healthy 9-year-old girl developed an asymptomatic eruption of discrete and confluent, 2 to 3 mm, hypopigmented papules in a linear pattern along the lines of Blaschko on the back of her left thigh and leg over the past 3 weeks. The lesions cleared without treatment 4 to 5 months later. 

Inflammatory linear verrucous epidermal nevus

on Monday, March 24, 2025 at 12:00 PM ET or later for the full case presentation, differential diagnosis, and correct patient diagnosis.

Take your best guess and try to diagnose this 9-year-old girl's linear eruption on the back of her left thigh and leg. Stay tuned for the full case presentation and correct diagnosis! 

Poll: What's the diagnosis of this linear eruption on the leg of a 9-year-old girl?

 poll. Take a look at the following case below. After reading through the description, choose a multiple choice answer and try to guess the correct patient diagnosis.

on Monday, January 6 at 12:00 PM ET for the full case presentation, differential diagnoses, and the correct patient diagnosis. 

This case was provided by Amar Davé, MD, FAAP and Pahroul Davé, APRN

A boy aged 10 years presented to the outpatient office with a history of painful nodules on the plantar surface of his bilateral feet 8 to 10 hours after spending time in a hot tub. He was unable to bear weight or put on socks and shoes due to his pain. The photos were taken soon after the painful and red papules appeared. The lesions affected the whole plantar aspect of both feet. Over the following 4 days, the nodules became less painful and red. 

Medical advice was sought on the fifth day of symptoms, and by this time, the child was improving clinically. He was stable with subcutaneous, mildly painful, fleshy nodules mostly populating the medial arch of the foot. His remaining clinical examination results were within a normal range. Further questioning of the child’s mother revealed that other children exposed to the hot tub experienced painful feet but without lesions. 

Due to the patient’s improving symptoms and the self-limiting nature of the illness, no tests or labs were ordered as the child was not acutely ill. No peer consultations or specialists were utilized.

Click here for the full case presentation, differential diagnoses, and the correct patient diagnosis, in a separate article.

The photos in this case were taken soon after the painful and red papules appeared.

Can you diagnose this boy with painful nodules on his feet?

 on Monday, February 24, 2025 at 10:00 PM ET or later for the full case presentation, differential diagnoses, and the correct patient diagnosis. 

This case was provided by Irene Chern, MD, Aimee Johnson, MD, and Dana Toib, MD.

A 6-day-old male with history of waxing and waning urticarial rash presents to the general pediatrician’s office for evaluation. The parents describe the rash as red, raised skin lesions that become flat and congregate, lasting several hours to days, resolving without leaving marks and then appearing in new areas. The rash began shortly after birth, and it does not seem to bother the patient. The parents deny any other concerns, including vomiting, fever, joint swelling, oral ulcers, or irritability. The patient is breastfeeding well and has normal urination and bowel movements.

On review of the nursery notes, it appears that at 9-hours of life the patient developed a rash that started as small, blanching, erythematous, circular macules on the legs; gradually increasing in size and number; becoming raised and coalescing to large, diffuse patches on the legs, back, chest, face, and soles that resolved within several hours. The patient was born to a 30-year-old gravida 1 mother at 40-weeks gestation via spontaneous vaginal delivery. The parents are without consanguinity or family history of autoimmune or inflammatory diseases. The pregnancy was complicated by maternal hypothyroidism and group B Streptococcus positive status, with the mother adequately treated with levothyroxine and intrapartum antibiotics.

Neonatal Onset Multisystem Inflammatory Disease

Click here for the full article featuring the complete case presentation, differential diagnosis, and correct patient diagnosis.

For more puzzler case studies, click here.

Can you diagnose this patient in our most recent puzzler poll? 

Puzzler poll: Urticarial rash in a 9-hours-old male 

In December 2024, the American Academy of Pediatrics (AAP) 

introduced updates to the critical congenital heart disease (CCHD)

 screening algorithm to enhance efficiency and accuracy in newborn screenings. These changes include a simplified process that reduces the number of retests and refines the criteria for passing oxygen saturation levels. The goal of these refinements is to decrease misinterpretation, improve sensitivity, and ensure more consistent implementation of CCHD screening across hospitals nationwide.

In this quiz, we test your knowledge of the key changes in the screening algorithm.

Take the quiz below to test your comprehension of the updated screening process and its implications for clinical practice.

B) Family history of congenital heart disease

C) Pre- and post-ductal oxygen saturation readings

A) Eliminating mandatory screening in low-risk infants

B) Requiring manual entry of all results into paper logs

C) Integrating screening protocols into electronic health records (EHRs)

D) Conducting screening only for infants with concerning prenatal ultrasounds

In this quiz, we test your knowledge of the AAP's new algorithm and updated recommendations for newborn screening for critical congenital heart disease.

Kevin Kunzmann

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