# Case Report: MIS-C precipitating DKA and renal failure in a morbidly obese male with type 2 diabetes mellitus

**Authors:** John Tumberger, Vincent Czerwinski, Francesca Pérez Marquès, Travis R. Langner, Hammad A. Ganatra, Shawn B. Sood

PMC · DOI: 10.3389/fped.2026.1727955 · 2026-03-17

## TL;DR

A 15-year-old obese male with type 2 diabetes developed MIS-C, which was initially masked by diabetic ketoacidosis and kidney failure.

## Contribution

This case highlights the risk of MIS-C in obese children and its variable presentation alongside endocrinologic complications.

## Key findings

- MIS-C diagnosis was complicated by concurrent DKA and renal failure in a morbidly obese adolescent.
- The case underscores the increased risk of MIS-C in obese children with diabetes.
- Endocrinologic complications are a notable feature of MIS-C.

## Abstract

Multisystem inflammatory syndrome in children (MIS-C) is a recently described systemic inflammatory sequelae of SARS-CoV-2 infection. Diagnostic criteria for MIS-C includes age <21, fever (>38°C), laboratory evidence of inflammation, clinically severe illness requiring hospitalization with multisystem (≥2) organ involvement, Evidence of current or recent SARS-CoV-2 infection or exposure, and has no alternative explanation for their symptoms. We present a 15-year-old, morbidly obese male whose diagnosis of MIS-C was obfuscated by diabetic ketoacidosis (DKA). This case highlights the increased risk of development of MIS-C in obese children, variability of presentation, and contributes to the body of research demonstrating endocrinologic complications of MIS-C.

## Linked entities

- **Diseases:** MIS-C (MONDO:0100163), type 2 diabetes mellitus (MONDO:0005148), renal failure (MONDO:0001106)

## Full-text entities

- **Diseases:** renal failure (MESH:D051437), inflammation (MESH:D007249), SARS-CoV-2 infection (MESH:D000086382), fever (MESH:D005334), DKA (MESH:D016883), type 2 diabetes mellitus (MESH:D003924), obese (MESH:D009765), MIS-C. (MESH:C000705967)

## Figures

2 figures with captions in the complete paper: https://tomesphere.com/paper/PMC13036213/full.md

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Source: https://tomesphere.com/paper/PMC13036213