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Specialty. Psychiatry. Types. OCD. Dermatophagia (from Ancient Greek δέρμα — lit. skin and φαγεία lit. eating) or dermatodaxia (from δήξις, lit. biting) [3] is a compulsion disorder of gnawing or biting one's own skin, most commonly at the fingers. This action can either be conscious or unconscious [4] and it is considered to ...
A Schatzki ring or Schatzki–Gary ring is a narrowing of the lower esophagus that can cause difficulty swallowing ( dysphagia ). The narrowing is caused by a ring of mucosal tissue (which lines the esophagus) or muscular tissue. [1]
A signet ring cell, as seen in a case of colon adenocarcinoma with mucinous features, showing a tumor cell with a vacuole of mucin. H&E stain. Specialty. Oncology. Signet ring cell carcinoma (SRCC) is a rare form of highly malignant adenocarcinoma [1] that produces mucin.
Then you put a cooling wrap and compression cap on your head. You have them on 30 minutes before you start your treatment; then it stays on the whole time during the treatment. You also stay two ...
Signet ring for comparison. In histology, a signet ring cell is a cell with a large vacuole. The malignant type is seen predominantly in carcinomas. Signet ring cells are most frequently associated with stomach cancer, but can arise from any number of tissues including the prostate, bladder, gallbladder, breast, colon, ovarian stroma and testis.
Excoriation disorder, more commonly known as dermatillomania, is a mental disorder on the obsessive–compulsive spectrum that is characterized by the repeated urge or impulse to pick at one's own skin, to the extent that either psychological or physical damage is caused. [4] [5]
The ability to invade surrounding tissue and metastasise is a hallmark of cancer. The hallmarks of cancer were originally six biological capabilities acquired during the multistep development of human tumors and have since been increased to eight capabilities and two enabling capabilities. The idea was coined by Douglas Hanahan and Robert ...
Head and neck cancer develops from tissues in the lip and oral cavity (mouth), larynx (throat), salivary glands, nose, sinuses, or skin of the face. [5] The most common types of head and neck cancer occur in the lips, mouth, and larynx. [5] Symptoms predominantly include a sore that does not heal or a change in the voice. [1]
H&E stain. Desmoplastic small-round-cell tumor (DSRCT) is an aggressive and rare cancer that primarily occurs as masses in the abdomen. [4] Other areas affected may include the lymph nodes, the lining of the abdomen, diaphragm, spleen, liver, chest wall, skull, spinal cord, large intestine, small intestine, bladder, brain, lungs, testicles ...
Some alkylating agents are active under conditions present in cells; and the same mechanism that makes them toxic allows them to be used as anti-cancer drugs. They stop tumor growth by crosslinking guanine nucleobases in DNA double-helix strands, directly attacking DNA.