Lacrimal gland enlargement

Introduction The lacrimal gland is flat or almond-shaped. The lacrimal gland is composed of a thin tubular gland and a duct, which is the organ that secretes tears. The lacrimal gland is located in the lacrimal gland outside the eyelid and is divided into upper and lower parts: the upper part is the crotch, also called the lacrimal gland, which is larger, the shape is very similar to almond, about 12mm×20mm; the lower part is the crotch, also called the lacrimal gland. small. There are 10-12 drainage tubes in the lacrimal gland, and the tears are discharged from these drainage tubes. Swollen should have a certain inflammation or hyperplasia.

Cause

Eyelid congestion and edema.

The main function of the lacrimal gland is to secrete tears. Common lacrimal gland diseases include inflammation, tumor, trauma, and atrophy. The tears secreted by the lacrimal gland flow down through the catheter, help to wash the bacteria, reduce their residence time, and the tear itself has the ability to inhibit bacterial growth, so the lacrimal gland is not easily infected by bacteria. However, viruses, bacteria that spread from neighboring tissues still infect the lacrimal gland, causing the lacrimal glands to become inflamed, forming acute or chronic lacrimal gland inflammation.

an examination

Related inspection

Lacrimal gland examination

Ultrasound, CT scan, MRI.

CT, also known as computed tomography, uses X-rays, ultrasound, isotopes, etc. as energy sources to obtain tomographic images through scanning of the examined site and reconstruction of the computer.

MRI, Chinese called magnetic resonance imaging, formerly known as nuclear magnetic resonance. Because "nuclear" is suspected of being unstable and radioactive in medicine, it has been collectively referred to as magnetic resonance imaging in recent years. It uses the principle of magnetic resonance (when the nucleus placed in a strong magnetic field is excited by electromagnetic waves of a specific frequency to absorb energy, it transitions from a low energy level to a high energy level. This phenomenon is called magnetic resonance, and the subsequently excited nucleus will return. In the original state, while releasing energy, the energy released from the hydrogen nuclei of the human body is detected in the form of electromagnetic waves, and then input into an electronic computer, and processed to obtain a tomographic image of the human body.

Differential diagnosis

1. Lacrimal gland pseudotumor: good eye disease, eyelid congestion and edema, hormonal drugs are effective but easy to relapse. Ultrasound examination can reveal lacrimal gland enlargement, such as the lacrimal gland lobular structure still exists, the internal echo is petal-like. The CT scan of the lacrimal gland is flat or almond-shaped and can be extended forward or at the tip of the palate.

2. Lacrimal gland lymphoproliferative lesions: common in the elderly, can occur bilaterally, a shorter history than inflammatory pseudotumor. Ultrasound examination of the lesions within the echo is low, the sound is not fading. The CT scan showed that the shape of the lesion was similar to that of the inflammatory pseudotumor, but it was larger.

3. Dermoid cyst: the outer iliac crest and the lacrimal gland are also the predilection sites of the dermoid cyst. The CT scan has a differential significance. The cyst has a low density or a negative area and can spread to the axilla or intracranial.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.