Actinomycosis of antrochoanal polyp: a rare entity

Shashikant A. Pol, Arjun Dass, Nitin Gupta, Aditi Mahajan


Antrochoanal polyp is a benign lesion, originating from the mucosa of the maxillary sinus, grow into maxillary sinus, nasal cavity and posteriorly to involve the choana. Nasal obstruction and nasal discharge are their main symptoms. Epistaxis is rare as seen in infected cases. Clinical assessment along with radiology helps in the diagnosis of antrochoanal polyp. We hereby describe a case of infected antrochoanal polyp in a 20-year-old female who presented with unilateral nasal obstruction, nasal discharge and intermittent epistaxis. Complete excision was done through endoscopic approach. On histopathology it showed secondary infection caused by actinomycosis which is extremely rare finding. This might be the first case report of actinomycosis infection in antrochoanal polyp as it was not found previously in any antrochoanal polyp case. Patient was followed till 6 month without any symptom.


Antrochoanal polyp, Maxillary sinus, Epistaxis, Nasal endoscopy, CT scan, Actinomycosis

Full Text:



Killian G. The origin of antrachoanal polyp. Lancet 1906;2:81–2.

Maldonado M, Martínez A, Alobid I, Mullol J. The antrochoanal polyp. Rhinology. 2004;43:178–82.

Stammberger H, Hawke M. Essentials of functional endoscopic sinus surgery. Mosby, St Louis. 1993: 103–105.

Lopatin A, Bykova V, Piskunov G. Choanal polyps: one entity, one surgical approach? Rhinology. 1997;35:79–83.

Aydin O, Keskin G, Ustündağ E, Işeri M, Ozkarakaş H. Choanal polyps: an evaluation of 53 cases. Am J Rhinol 2007;21:164–8.

Orvidas LJ, Beatty CW, Weaver AL. Antrochoanal polyps in children. Am J Rhinol. 2001;15:321–5.

Segal N, Gluk O, Puterman M. Nasal polyps in the pediatric population. B-ENT. 2012;8:265–7.

Yilmaz YF, Titiz A, Ozcan M, Tezer MS, Ozlugedik S, Unal A. Bilateral antrochoanal polyps in an adult: a case report. B-ENT. 2007;3:97–9.

Sirola R. Choanal polyps. Acta Otolaryngol. 1965;64:42-8.

Kamel R. Endoscopic transnasal surgery in antrochoanal polyps. Arch Otolaryngol Head Neck Surg. 1990;116:841-3.

11.Aktas D, Yetiser S, Gerek M, Kurnaz A, Can C, Kahramanyol M. Antrochoanal polyps: analysis of 16 cases. Rhinology. 1998;36:81-5.

Chung SK, Chang BC, Dhong HJ. Surgical, radiologic, and histologic findings of the antrochoanal polyp. Am J Rhinol. 2002;16:71-6.

Schramm VL, Efferon MZ. Nasal polyps in children. Laryngoscope. 1980;90:1488-95.

Vleming M, De Vries N. Endoscopic sinus surgery for antrochoanal polyps. Rhinology. 1991;29:77-8.

Hong SK, Min YG, Kim CN, Byun SW. Endoscopic removal of antral part of antrochoanal polyp by powered instrumentation. Laryngoscope. 2001;111:1774-8.

Min YG, Chung JW, Shin JS, Chi JG. Histologic structure of antrochoanal polyps. Acta Otolaryngol. 1995;115:543-7.

Lee TJ, Huang SF. Endoscopic sinus surgery for antrochoanal polyps in children. Otolaryngol Head Neck Surg. 2006;135:688-92.

Sternberg S. Diagnostic Surgical Pathology. 3rd Edn. Philadelphia: Lipincott, Williams and Wilkins; 1999.