A rare case of acute appendicitis due to Enterobius vermicularis in a young man.

Anil kumar Verma, Firoz Sheikh, Chandni Krishnani, K. Ankita Simon — Tue, 16 Sep 2025 00:00:00 +0530

Abstract: Acute appendicitis is the acute inflammation of the vermiform appendix. Several etiologic factors, including a parasite, can cause it. Many parasites, including Ascaris lumbricoides, tenia, Enterobius vermicularis, Entamoeba histolytica, etc., can cause acute appendicitis. E. vermicularis is one of the most common parasitic infections around the world, and acute appendicitis, on the other hand, is also a commonly encountered condition in general surgery. However, the association between these two conditions remains rare. We present a case of a young adult male with histopathologically confirmed Enterobius vermicularis infestation in the appendix, highlighting the importance of considering parasitic causes in atypical presentations of appendicitis

Keywords: parasitological diseases; appendectomy; appendicitis; Enterobius vermicularis;

enterobiasis; helminths; pinworms

Twin Tales of Rarity: Sarcina Ventriculi and Colonic Mucormycosis with Unusual Gastrointestinal Presentations

Richa Srivastava, Gowthami N — Tue, 16 Sep 2025 00:00:00 +0530

Sarcina ventriculi and mucormycosis are rare but clinically significant infections that can present as unusual gastrointestinal pathologies. Sarcina ventriculi is a gram-positive, anaerobic coccus associated with delayed gastric emptying, gastric ulcers, emphysematous gastritis, and perforation. Due to its nonspecific symptoms and difficulty in culturing, diagnosis often depends on histopathological identification of characteristic tetrad-forming cocci. Mucormycosis, caused by fungi of the order Mucorales, is an aggressive, angioinvasive infection affecting immunocompromised individuals. Gastrointestinal involvement is rare and frequently misdiagnosed due to overlapping clinical features with malignancy. Histopathology remains the gold standard, revealing broad, aseptate hyphae with right-angle branching and vascular invasion. We present two rare cases: a 39-year-old male with duodenal and antral ulcers harbouring Sarcina ventriculi, and a 43-year-old male with colonic mucormycosis showing extensive necrosis and fungal angioinvasion. These cases emphasize the pivotal role of histopathological examination in diagnosing uncommon gastrointestinal infections and highlight the need for clinical vigilance in atypical presentations.

Tropical Journal of Pathology and Microbiology

A rare case of acute appendicitis due to Enterobius vermicularis in a young man.

Twin Tales of Rarity: Sarcina Ventriculi and Colonic Mucormycosis with Unusual Gastrointestinal Presentations