Chlamydia trachomatis Pneumonia in a 50-Day-Old Full-Term Male Infant Associated With Mucus Plugging of the Left Upper Lobe Bronchus and Left Upper Lobe Atelectasis

17 June 2026 : Case report China

Challenging differential diagnosis, Rare disease

Yuan Huang

^{ABCDEF 1}, Meixia Huang^{AB 1}, Liqin Ke^{EF 1}, Shuxian Li^{ABF 1}, Xiaofen Tao^{B 2}, Guohong Zhu^{AEF 1*}

DOI: 10.12659/AJCR.953643

Am J Case Rep 2026; 27:e953643

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Table 1 Sequence of routine laboratory test results during hospitalization.

	13 Jan	15 Jan	18 Jan	21 Jan	24 Jan

White blood cell (4–12 × 10/mL)	11.2	9.58	13.74	13.23	10.53
Eosinophil% (1%–6%)	4.4	0.1	8.4	6.6	6.8
Eosinophil count (0.05–0.5 × 10/mL)	0.49	0.01	1.15	0.87	0.72
Platelet count (100–400 × 10/mL)	324	438	538	583	477

Alanine aminotransferase (8–71 U/L)	–	42	–	53	–
Ddimer (<0.55 mg/L)	–	1.39	0.78	0.07	–

Highsensitivity Creactive protein (0–6 mg/L)	34.7	14.78	3.09	0.72	0.26
Procalcitonin (<0.5 ng/mL)	–	0.16	0.13	–	–
Erythrocyte sedimentation rate (0–20 mm/h)	–	35.97	–	–	–
Note: –, Not done (tests not performed on the corresponding day).

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