What causes lumps in the stomach?

A hard lump in the abdomen refers to a mass or a mass in the abdomen. The location of the lump can be detected by medical equipment. There are many reasons for the appearance of a hard lump in the abdomen. This may be a disease caused by a tumor or hyperplasia in the abdomen. Targeted treatment is required. Pay more attention to the condition to avoid serious illness.

What causes lumps in the stomach?

An abdominal mass is an abnormal mass that can be felt during an abdominal examination. Common causes include organomegaly, expansion of hollow organs, tissue hyperplasia, inflammatory adhesions, and benign and malignant tumors. Abdominal masses are primarily examined by palpation. If a lump is found during palpation, attention should be paid to the location, size, shape, texture, tenderness, and mobility of the lump. This is used to identify the origin and nature of the tumor.

Classification

There are many classification methods, and the mass can be roughly divided into six types according to its nature (Table 1 Classification of abdominal masses).

Some diseases cannot be classified exactly according to the above categories. For example, retroperitoneal masses can appear in the abdomen.

Any part of the pancreas. Pancreatic cystadenocarcinoma is both a tumor and a cyst. Usually, abdominal masses refer to chronic diseases, and masses manifested by acute abdomen are not included.

Physiological "lumps" are not real diseases, but are sometimes mistaken for pathological masses. In addition to the uterus, bladder, and fecal masses, the muscles between the well-developed rectus abdominis tendons, the spine or sacral promontory in emaciation, and the spontaneously spasmodic intestines may all be misdiagnosed as pathological. Even the abdominal aorta of a person with a soft or weak abdominal wall may be mistaken for a "pulsating mass."

Inflammatory masses are often accompanied by signs of inflammation such as fever, local pain, and increased white blood cell count. Such as periappendicitis mass, mesenteric lymph node tuberculosis, perirenal abscess, etc.

Tumor masses are mostly solid masses. Malignant tumors are the majority and are characterized by rapid development, with anemia, weight loss and cachexia in the late stages; benign tumors have a long history and are larger, smoother and have a certain degree of mobility.

Cystic masses are mostly round or oval in shape, with a smooth surface and a sense of fluctuation. Common ones include congenital polycystic liver, polycystic kidney, urachal cyst; retention pancreatic cyst, hydronephrosis; tumorous ovarian cyst; inflammatory gallbladder effusion, hydrosalpinx, encapsulated effusion; parasitic hydatid cyst, etc.

Obstructive masses: Obstructive masses in the gastrointestinal tract can cause abdominal pain, bloating, vomiting, or constipation without flatus; masses obstructing the bile duct cause painless jaundice, usually without fever; masses obstructing the urinary tract often cause distension and pain in the lower back. Strictly speaking, congestive splenomegaly and cholestatic hepatomegaly are also obstructive masses.

Traumatic masses such as spleen rupture hematoma in the left upper abdomen, pancreatic pseudocyst in the upper abdomen, retroperitoneal hematoma in the lower abdomen or pelvic cavity, etc. See Abdominal Trauma.