Visceral Varicella-Zoster Virus Infection Presenting with Severe Abdominal Pain without a Rash in a Patient with Psoriatic Arthritis Treated with Infliximab Biosimilar and Steroids: A Case Report

Imposter Zoster: An Atypical Case of Varicella-Zoster Virus Infection

In this report, we describe a case involving an 80-year-old female who presented to the emergency department with an acute onset of left upper quadrant abdominal pain. The chief complaint misled us down multiple pathways of considering ischemic bowel disease, peptic ulcer disease, and small bowel obstruction. As a result, this led to costly and invasive diagnostic studies. However, the actual cause eventually became apparent - a cutaneous varicella-zoster virus infection. This case underscores the significance of maintaining a comprehensive list of potential diagnoses, particularly in elderly adults who commonly present atypically and often face difficulty expressing their symptoms. It also underlines the diagnostic challenges associated with identifying shingles without cutaneous findings. Early detection is crucial in preventing unnecessary tests, minimizing costs, and avoiding treatment delays. Furthermore, the case is a powerful example of the importance of vaccination, which has been proven to be 68-97% effective in preventing shingles and postherpetic neuralgia, depending on the individual's immune function.

A Typical Manifestation of VZV Infection in a Vaccinated Immunocompetent Adult

Introduction. Aseptic meningitis can occur from different types of infections of which viral etiologies are the most common. Varicella zoster virus (VZV) nowadays is considered a familiar entity of aseptic meningitis. However, it is usually reported in immunocompromised patients. For cases of VZV meningitis that are observed, a rash has been noted before the onset of meningitis or sometimes after it. Clinical Case. We present an uncommon case of VZV meningitis in an 18-year-old immunocompetent male who did not have a rash on presentation and did not develop one during his course either. Cerebrospinal fluid showed lymphocyte-predominant leukocytosis and elevated protein with normal glucose suggestive of aseptic meningitis. Cerebrospinal fluid polymerase chain reaction (CSF PCR) was positive for VZV; cerebrospinal fluid cultures and blood cultures were negative. The patient had complete resolution of symptoms with no complications on intravenous acyclovir therapy and was discharged home on oral valacyclovir therapy. Conclusion. It is important to consider varicella zoster virus as an etiology of aseptic meningitis as clinical presentation can be without a vesicular rash and in immunocompetent patients.

Visceral disseminated varicella zoster infection: a rare cause of acute abdomen in a patient with well-controlled diabetes mellitus-a case report

BACKGROUND

Visceral disseminated varicella zoster virus (VZV) infections frequently affect immunocompromised patients. Diabetes mellitus has been associated with VZV infection, and most cases of disseminated infection involve patients with poorly controlled blood glucose levels. It initially presents as severe abdominal pain, which is evaluated as an acute abdomen, however, the cause is typically unidentified due to unremarkable computed tomography (CT) findings. We report a case of visceral disseminated VZV infection in a patient with well-controlled diabetes mellitus with fat stranding around the celiac and superior mesenteric artery on CT.

CASE PRESENTATION

A 61-year-old Japanese woman with well-controlled diabetes mellitus presented to the emergency department with severe abdominal pain that gradually worsened. She had stable vital signs and skin rashes, suggestive of varicella. Abdominal CT showed fat stranding around the celiac and superior mesenteric arteries. The patient tested positive for the VZV antigen and was diagnosed with a visceral disseminated VZV infection. Acyclovir was administered, and the patient was discharged on the 14th day.

CONCLUSIONS

Visceral disseminated VZV infection may affect patients with well-controlled diabetes mellitus and causes acute abdomen. Periarterial fat stranding on CT is associated with abdominal pain due to visceral disseminated VZV infection.