Painless solitary hard lump in the breast

Introduction A hard mass in the breast that is painless and single is a clinical feature of breast fibroadenomas. Breast fibroadenomas are formed by the simultaneous proliferation of fibrous tissue and glandular epithelium in the lobular lobes of the breast. They are the most common benign tumors of the breast, which occur mostly in young women and are characterized by painless masses in the breast, usually single-shot. More common in the upper quadrant of the breast. The mass is mostly round, the surface is smooth, the boundary with the surrounding tissue is clear, the activity is non-adhesive, and the disease is less likely to be malignant, about 1%. Breast tuberculosis is more common in middle-aged women, and there are few systemic symptoms of tuberculosis. The main manifestations are breast lumps. The course of the disease is slow. Most of the cases are isolated nodules. Afterwards, several masses are formed. The tenderness is not obvious. After a few months. The mass softens and forms a cold abscess. After the ulceration, ulcers and long-lasting unexpected discharges may occur, and there is a thin pus of bean dregs, and the ipsilateral axillary lymph nodes are often swollen.

Cause

The occurrence of this disease is related to the excessive stimulation of estrogen, so it is more common in women with sexual function during the 20 to 25 years of age. During pregnancy and lactation or premenopausal, due to the massive secretion of estrogen, tumors can grow rapidly; animal experiments have also confirmed that a large number of estrogen can induce tumor formation.

an examination

Related inspection

Breast examination breast ultrasound examination

The predilection sites of breast fibroadenomas are more than the upper quadrant, and most (about 75%) are single-shot, and a few are multiple. It is characterized by a painless isolated mass, which is accidentally discovered by accidental narration; the mass is round or elliptical, with a diameter of between 1 and 5 cm, and occasionally a giant fibrous adenoma with a diameter of more than 10 cm; The menstrual cycle has no effect on tumor size and there is no abnormal nipple discharge. The growth rate is relatively slow. Percussion: The surface of the mass is smooth, the boundary is clear, the texture is tough, and it has no adhesion to the skin and surrounding tissues. It is easily pushed, and the axillary lymph nodes are not swollen.

Differential diagnosis

Differential diagnosis of a hard mass with no pain in the breast:

1, cystic hyperplasia disease: this disease is a stage of breast hyperplasia, mostly older, and more prone, sometimes with a strip of nodules, the border is unclear, is a precancerous lesion.

2, breast pain: also a stage of breast dysplasia, mainly in the mammary gland can touch most of the uneven small nodules, and more spontaneous spontaneous pain. In particular, the pain of the breast before the menstrual cramps is obvious, and even the pain is untouchable, and the patient is very painful.

3, papilloma: can be single or multiple. Single women are mostly elderly women, and 50% have bloody discharges. Multiple patients with diffuse nodules, no obvious lumps. This tumor can be malignant.

4, phyllodes cystosarcoma: more common in 35-40 years old, the development is slower, the tumor is lobulated, part of the hard as stone, some areas are sac sexy. The tumor is often huge, sometimes broken, and rarely fixed with the chest. Often mistaken for advanced breast cancer, but the curative effect is very good after radical surgery. The transfer is rare, usually with blood behavior, and occasional lymphatic metastasis.

5, fat necrosis: occurs in the outer part of the breast of obese women, most of the history of trauma, need to be removed biopsy to identify.

6, breast tuberculosis: mostly spread from the chest wall tuberculosis, can be broken, and out of the cheese-like pus. Attention to the examination often found that other parts of the tuberculosis lesions exist at the same time.

7, plasma cell mastitis: also known as non-lactating mastitis. Less common, more history of acute attacks, may have pain, fever, etc., but quickly subsided after anti-inflammatory treatment.

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