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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]
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 ...
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 ...
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]
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.
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.
Body-focused repetitive behavior. Body-focused repetitive behavior ( BFRB) is an umbrella name for impulse control [1] behaviors involving compulsively damaging one's physical appearance or causing physical injury. [2] Body-focused repetitive behavior disorders ( BFRBDs) in ICD-11 is in development. [3]
Cancer immunotherapy (immuno-oncotherapy) is the stimulation of the immune system to treat cancer, improving the immune system's natural ability to fight the disease. It is an application of the fundamental research of cancer immunology ( immuno-oncology ) and a growing subspecialty of oncology .
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 ...
A Langerhans cell ( LC) is a tissue-resident macrophage of the skin [2] once thought to be a resident dendritic cell. [3] These cells contain organelles called Birbeck granules. They are present in all layers of the epidermis and are most prominent in the stratum spinosum. [4] They also occur in the papillary dermis, particularly around blood ...