HIV Patient Esophagitis Diagnosis

The case describes a young, HIV-infected male experiencing odynophagia (painful swallowing). Endoscopy reveals characteristic serpiginous ulcers in the distal esophagus with normal surrounding mucosa. Evaluating the differential diagnoses is key.

Analyzing Esophagitis Causes in HIV

The patient's immunocompromised status (HIV) makes infectious causes of esophagitis likely. The endoscopic findings are crucial for differentiation:

• Gastroesophageal Reflux Disease (GERD): While GERD can cause esophagitis, it typically presents with heartburn and may show inflammation or erosions, not usually discrete serpiginous ulcers.
• Cytomegalovirus (CMV) Esophagitis: CMV is a common opportunistic infection in HIV patients. Endoscopic findings classically include deep, linear, or serpiginous ulcers, often in the distal esophagus. This aligns well with the description.
• Candida Esophagitis: This is another frequent opportunistic infection. It usually appears as white plaques or exudates overlying erythematous mucosa, or sometimes shallow ulcers, but large serpiginous ulcers are less typical.
• Herpetic Esophagitis: Herpes simplex virus (HSV) can cause esophagitis, typically presenting as small, "punched-out" ulcers or vesicles, often more proximal than described here. Serpiginous ulcers are not the classic finding.

Given the presence of serpiginous ulcers in the distal esophagus of an HIV-infected patient presenting with odynophagia, CMV esophagitis is the most consistent diagnosis.