Smooth, rounded mass on the ankle

Introduction The symptoms of ganglion cysts are characterized by smooth rounded masses in the ankles. A ganglion cyst is a hemispherical cystic and elastic mass that occurs around the joint or tendon sheath and contains a jelly-like substance. The cause is still unclear, and it occurs in the back of the wrist and the back of the foot. It may have a certain relationship with chronic trauma. It can be excessively injured (chronic, especially in the hands and fingers). Osteoarthritis, some systemic immune diseases, and even infections may also be caused. Some occupations that require long-term repeated strained joints, such as typist cargo handling or long computer operations The industry, etc. will cause or aggravate the disease. The common affected areas include wrists, fingers, shoulders, etc. Women and diabetics will be more susceptible to this disease. Patients will feel joint pain. Morning stiffness: usually the feeling of morning stiffness of the joints after getting up The most obvious and the symptoms do not obviously relieve with the frequent activities, the affected joints are swollen and even the joint movement disorder.

Cause

In traditional Chinese medicine, this disease is called polygluten or tendon. It is thought to be a traumatic fascia, where the evil spirits are present, the stagnation is not smooth, and the water is accumulated in the meridian of the joint. Due to excessive joint activity of the affected part, repeated weight bearing, standing for a long time, etc., the labor injury and the tendon, resulting in poor gas and gas operation, stagnation of the tendon.

A ganglion cyst is a hemispherical cystic and elastic mass that occurs around the joint or tendon sheath and contains a jelly-like substance. The cause is still unclear, and it occurs in the back of the wrist and the back of the foot. It may have a certain relationship with chronic trauma.

It can be excessively injured (chronic, especially in the hands and fingers). Osteoarthritis, some systemic immune diseases, and even infections may also be caused. Some occupations that require long-term repeated strained joints, such as typist cargo handling or long computer operations The industry, etc. will cause or aggravate the disease. The common affected areas include wrists, fingers, shoulders, etc. Women and diabetics will be more susceptible to this disease. Patients will feel joint pain. Morning stiffness: usually the feeling of morning stiffness of the joints after getting up The most obvious and the symptoms do not obviously relieve with the frequent activities, the affected joints are swollen and even the joint movement disorder.

an examination

Related inspection

Skeletal palpation of bone and joint and soft tissue CT examination

1. General symptoms: ganglion cysts can occur at any age, more common in young and middle-aged, more women than men. The cyst grows slowly, round, and generally does not exceed 2 cm in diameter. There are also sudden discoverers. A few can dissipate on their own, or they can grow again. In some cases, except for local tumors, there is no conscious discomfort, and sometimes mild tenderness. Most cases have local soreness or discomfort that affects activity.

2. Local symptoms: When inspecting, a circular mass with a smooth shape and clear boundary can be touched, and the surface skin can be pushed without adhesion. Most of the cysts have a large tension, the mass is tough, and a few are soft, but all have a sac. The base of the cyst is fixed and there is almost no activity. B-ultrasound can help determine the nature of the mass.

(1) ganglion cyst of the wrist: occurs mostly on the dorsal side of the wrist, and a few are on the volar side. The best part of the hair is the posterior joint capsule of the wrist of the total extensor tendon, followed by the temporal flexor tendon and the long abductor tendon. The ganglion cyst on the volar side of the wrist is sometimes differentiated from the iliac aneurysm. The radial artery, the cephalic vein, and the superficial branch of the radial nerve should be protected when the cyst is removed.

The flexor tendon sheath in the carpal tunnel can also undergo cysts, compressing the median nerve and inducing carpal tunnel syndrome. A small number of ganglion cysts can occur on the distal flexor tendon sheath of the metacarpophalangeal joint. The size of the rice is as hard as cartilage.

(2) sacral sheath cysts in the foot and ankle: There are 8 tendon sheaths in the foot and ankle: 3 in front (anterior tendon, long extensor tendon and long extensor tendon), and 3 medial posterior tendon, long flexor tendon and toe Long flexor tendon), 1 lateral (long tibia, short tendon), and 1 posterior (Achilles tendon). It is more common in the sacral sheath of the foot, and it originates from the toe long tendon sheath of the toe of the dorsal artery. The sacral sheath cyst in the fistula can compress the phrenic nerve and is one of the causes of fistula syndrome.

According to the medical history, the general symptoms and local symptoms of clinical manifestations, B-ultrasound examination, generally can establish a diagnosis.

Differential diagnosis

Differential diagnosis of the smooth circular mass of the ankle:

Red lumps of pain in the posterior upper part of the heel: Achilles tendon bursitis manifests as a red mass with pain in the upper back of the heel.

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