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Updated: Oct 12, 2026

Isolation and Culture of Pulmonary Endothelial Cells from Neonatal Mice
Published on: December 14, 2010
Pulmonary fungal infection in a neonate with methylmalonic acidemia: A case report
Chun-Fang Gao1, Dan Wang1, Ling-Kong Zeng1
1Department of Neonatology, Wuhan Women and Children Medical Care Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, Hubei Province, China.
Background:
Methylmalonic acidemia (MMA) is characterized by non-specific symptoms such as vomiting, and feeding difficulties, along with delayed mental and physical development. However, no case of MMA combined with pulmonary fungal infection has been reported yet.
Case Summary:
We report the case of a neonate who presented pulmonary fungal infection along with the non-specific features of MMA. Exome sequencing revealed a c.331C>T variant in exon 3 of MMACHC from the father, and a c.658-c.660delAAG variant in exon 4 from the mother, which confirmed the diagnosis of cblC type MMA combined with hyperhomocysteinemia.
Conclusion:
Invasive fungal infection might occur in some infants with MMA. Therefore, early diagnosis is recommended for unexplained pulmonary infection.
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