Differential Diagnosis for Multiple Red Lesions at Entrance of Nose
- Single Most Likely Diagnosis
- Nasal vestibulitis: This condition is characterized by inflammation of the nasal vestibule, often due to bacterial or fungal infections, and can present with red lesions at the entrance of the nose. It's a common issue that can arise from poor hygiene, nose picking, or other irritations.
- Other Likely Diagnoses
- Folliculitis: An inflammation of the hair follicles that can occur anywhere on the skin, including the entrance of the nose. It presents as small, red, and sometimes pus-filled bumps.
- Acne: Although more commonly associated with the face, acne can occur at the entrance of the nose, especially if the area is oily or if there is blockage of the pores.
- Irritant Contact Dermatitis: This is a non-allergic reaction to an irritant, which can cause redness, itching, and small bumps. It could be due to exposure to certain chemicals, soaps, or other substances that come into contact with the nasal area.
- Do Not Miss Diagnoses
- Squamous Cell Carcinoma or Basal Cell Carcinoma: Although less common, skin cancers can present as red lesions. Given the potential severity of these conditions, they should always be considered in the differential diagnosis, especially in individuals with risk factors such as prolonged sun exposure.
- Lupus Pernio (Cutaneous Sarcoidosis): A condition that can cause lesions on the nose, among other areas. It's part of sarcoidosis, a disease that leads to inflammation, usually in the lymph nodes, lungs, or liver, but can affect any part of the body.
- Rare Diagnoses
- Rhinoscleroma: A chronic granulomatous infection caused by Klebsiella rhinoscleromatis, which can cause lesions and deformity of the nose, though it's more commonly associated with the nasal passages.
- Granuloma Faciale: A rare skin condition characterized by single or multiple, benign, reddish-brown plaques or nodules, typically on the face, including the nose. The exact cause is unknown, but it's thought to be related to sunlight exposure and possibly an autoimmune response.