Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6900
Peer-review started: April 24, 2021
First decision: May 24, 2021
Revised: June 3, 2021
Accepted: June 16, 2021
Article in press: June 16, 2021
Published online: August 16, 2021
Processing time: 102 Days and 21.9 Hours
Scrub typhus is an acute infectious disease caused by rickettsia infection. The diagnosis is based on eschar, and clinical manifestations can range from asymptomatic to multiorgan dysfunction.
We report the case of a 35-year-old man living in Zhuhai, Guangdong, China, who had repeated high fever with a maximum body temperature of 40.2 °C and elevated white blood cells and procalcitonin levels. After 7 d of persistent high fever, the patient developed rash, abdominal pain, and symptoms of peritonitis. Within 24 h after admission, the patient developed diffuse peritonitis and pneumonedema, requiring ventilator support in the intensive care unit. However, there was no eschar on the body, and the first Weil-Felix test was negative. Taking into account that the patient had a history of jungle activities, doxycycline combined with meropenem was selected. The patient improved, healed, and was discharged after a week. The diagnosis of scrub typhus was confirmed by a repeat Weil-Felix test (Oxk 1:640), and pathology of the appendix resected by laparotomy suggests vasculitis.
This rare presentation of peritonitis, pulmonary edema, and pancreatitis caused by scrub typhus reminds physicians to be alert to the possibility of scrub typhus.
Core Tip: We report a case of scrub typhus mainly manifesting as diffuse peritonitis, pulmonary edema, and other multiorgan dysfunction, but lacking typical eschar, and the first Weil-Felix test was negative. Tracing back his travel history of jungle activities 5 d before the onset, doxycycline (100 mg q12h) was added empirically to cover atypical bacteria. He was finally discharged in a relatively stable condition under appropriate antibiotics including meropenem and doxycycline 7 d after admission. This rare presentation of peritonitis, pulmonary edema, and pancreatitis caused by scrub typhus reminds physicians to be alert to the possibility of scrub typhus.