
Antrochoanal polyp | Radiology Reference Article - Radiopaedia.org
2024年11月21日 · Antrochoanal polyps (ACP) are solitary sinonasal polyps that arise within the maxillary sinus (antrum). They pass through and enlarge the sinus ostium and posterior nasal …
Nasal polyps - Symptoms and causes - Mayo Clinic
2023年8月8日 · Nasal polyps are painless growths inside the nose or the hollow areas inside the bones of the face, also known as sinuses. Nasal polyps aren't cancer. Small nasal polyps …
Nasal polyps - Diagnosis and treatment - Mayo Clinic
2023年8月8日 · A diagnosis of nasal polyps starts with symptoms, a medical history and a physical exam. Tests to diagnose nasal polyps might include: Nasal endoscopy. This involves …
Osteolytic nasal polyp of the maxillary sinus mimicking malignancy
We present an osteolytic nasal polyp of the maxillary sinus with clinical features and radiographic features mimicking that of a malignancy. Maxillary sinusitis being a common inflammatory …
Nasal polyp - Wikipedia
There are two primary types of nasal polyps: ethmoidal and antrochoanal. Ethmoidal polyps arise from the ethmoid sinuses and extend through the middle meatus into the nasal cavity. …
What Is Killian Polyp of Maxillary Sinus? - iCliniq
2022年8月26日 · The Killian polyp, also known as the antrochoanal polyp of the oronasal cavity, is an edematous polyp of the maxillary sinus. This polyp is hypertrophic as the mucosa herniates …
Bilateral antrochoanal polyps: possible pathogenesis
Antrochoanal polyp is a rare, benign solitary mass that arises from maxillary sinus. It exits through sinus ostium, passes across the middle meatus, and reaches into the choana. In general, it …
The antrochoanal polyp - PubMed
Antrochoanal polyps (ACP) are benign lesions that arise from the mucosa of the maxillary sinus, grow into the maxillary sinus and reach the choana, and nasal obstruction being their main …
Polyp of maxillary sinus (Concept Id: C0264239) - National …
A polyp that arises from the maxillary sinus mucosa. It is characterized by the presence of edematous tissue infiltrated by inflammatory cells, including eosinophils. Causes include …
Maxillary Sinus: Abnormal - UW MSK
Often on imaging a polyp and mucus retention cyst cannot be differentiated, but is usually of little clinical consequence. Axial image demonstrates an antrochoanal polyp that completely fills the …