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Calciphylaxis is a rare and severe medical condition characterized by the calcification of small blood vessels and soft tissues, leading to tissue damage, skin ulcers, and intense pain. It most commonly affects individuals with underlying health conditions such as kidney disease, particularly end-stage renal disease (ESRD), and is associated with high mortality rates. Understanding the diagnosis and management of calciphylaxis is crucial for improving patient outcomes. Diagnosing calciphylaxis can be challenging due to its rarity and overlapping symptoms with other skin conditions. Healthcare professionals typically use a combination of clinical evaluation and diagnostic tests to reach a conclusive diagnosis. The management of calciphylaxis is multifaceted and typically involves a collaborative effort between various healthcare specialists, including nephrologists, dermatologists, and wound care experts. The primary goals of treatment are to alleviate pain, promote wound healing, address underlying causes, and prevent further complications., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Al-Khazraji et al.)

Fever of unknown origin (FUO) presents a diagnostic challenge, particularly in patients with human immunodeficiency virus (HIV) due to their immunocompromised state. We report a case of a 21-year-old male with HIV who presented with persistent fever and was found to have a positive proteinase-3 antibody, raising suspicion of granulomatosis with polyangiitis (GPA). The patient's symptoms, negative infectious workup, and elevated proteinase-3 levels prompted consideration of non-infectious etiologies. Despite the absence of renal involvement, corticosteroid therapy was initiated, leading to the resolution of fever. However, the false positive association of proteinase-3 in HIV patients introduces uncertainty regarding the definitive diagnosis of GPA. A tissue biopsy would have provided further clarity, but it was not performed in this case. Our workup aligns more closely with a diagnosis of GPA, considering the patient's response to treatment and the absence of clinical deterioration. This case highlights the complexity of diagnosing non-infectious causes of FUO in HIV-infected individuals. It emphasizes the need for a multidisciplinary approach involving infectious disease specialists and rheumatologists to ensure accurate diagnosis and appropriate management., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2023, Kattel et al.)

Esophageal leukoplakia refers to a clinical finding of a white patch on the mucous membrane surface that cannot be scraped off. It has been associated with alcohol and tobacco use and chronic acid reflux. An association with squamous cell dysplasia and carcinoma has been reported with potential for malignant transformation warranting endoscopic intervention or surveillance, but no guidelines exist. We present a case of a 77-year-old female with a history of longstanding achalasia requiring multiple Botox injections. After presenting with weight loss, esophageal dysphagia, and acid reflux the patient underwent an esophagogastroduodenoscopy (EGD) showing a 20 mm white plaque in the middle third of the esophagus and histopathology consistent with esophageal leukoplakia. After repeated Botox injection and treatment with PPI and H2 blocker, no findings of esophageal leukoplakia were noted on repeat EGD. With this case, we aim to increase awareness of this rare disease pathology, especially in the setting of underlying achalasia. This case also raises the question if maximum anti-reflux therapy could have a potential benefit in avoiding the recurrence of esophageal leukoplakia., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2022, Kanagalingam et al.)