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Deep Learning Technology: Sebastian Arnold, Betty van Aken, Paul Grundmann, Felix A. Gers and Alexander Löser. Learning Contextualized Document Representations for Healthcare Answer Retrieval. The Web Conference 2020 (WWW'20)
Funded by The Federal Ministry for Economic Affairs and Energy; Grant: 01MD19013D, Smart-MD Project, Digital Technologies
Many malignancies can develop in vulvar structures. The signs and symptoms can include:
- Itching, burn, or bleeding on the vulva that does not go away.
- Changes in the color of the skin of the vulva, so that it looks redder or whiter than is normal.
- Skin changes in the vulva, including what looks like a rash or warts.
- Sores, lumps, or ulcers on the vulva that do not go away.
- Pain in the pelvis, especially during urination or sex.
Typically, a lesion presents in the form of a lump or ulcer on the labia majora and may be associated with itching, irritation, local bleeding or discharge, in addition to pain with urination or pain during sexual intercourse. The labia minora, clitoris, perineum and mons are less commonly involved. Due to modesty or embarrassment, patients may put off seeing a doctor.
Melanomas tend to display the typical asymmetry, uneven borders and dark discoloration as do melanomas in other parts of the body.
Adenocarcinoma can arise from the Bartholin gland and present with a painful lump.
A urogenital neoplasm is a tumor of the urogenital system.
Types include:
- Cancer of the breast and female genital organs: (Breast cancer, Vulvar cancer, Vaginal cancer, Cervical cancer, Uterine cancer, Endometrial cancer, Ovarian cancer)
- Cancer of the male genital organs (Carcinoma of the penis, Prostate cancer, Testicular cancer)
- Cancer of the urinary organs (Renal cell carcinoma, Bladder cancer)
Penile cancer arises from precursor lesions, which generally progress from low-grade to high-grade lesions. For HPV related penile cancers this sequence is as follows:
- A. Squamous hyperplasia;
- B. Low-grade penile intraepithelial neoplasia (PIN);
- C. High-grade PIN (carcinoma in situ—Bowen's disease, Erythroplasia of Queyrat and bowenoid papulosis (BP));
- D. Invasive Carcinoma of the Penis.
However, in some cases non-dysplastic or mildly dysplastic lesions may progress directly into cancer. Examples include flat penile lesions (FPL) and condylomata acuminata.
In HPV negative cancers the most common precursor lesion is lichen sclerosus (LS).
Basal cell carcinoma makes up about 1–2% of vulvar cancer. These tend to be slow-growing lesions on the labia majora but can occur anywhere on the vulva. Their behavior is similar to basal cell cancers in other locations. They often grow locally and have low risk for deep invasion or metastasis.
Treatment involves excision, but these lesions have a tendency to recur if not completely removed.
In its early stages, it can go unnoticed. It can be painless with slight physical changes. But the precursor tissue changes, can be noticed by the doctors.
Early stage symptoms can include persistent red or white patches, a non-healing ulcer, progressive swelling or enlargement, unusual surface changes, sudden tooth mobility without apparent cause, unusual oral bleeding or epitaxis and prolonged hoarseness.
Late stage symptoms can include an indurated area, paresthesia or dysesthesia of the tongue or lips, airway obstruction, chronic serous otitis media, otalgia, trismus, dysphagia, cervical lymphadenopathy, persistent pain or referred pain and altered vision.
Like many malignancies, penile cancer can spread to other parts of the body. It is usually a primary malignancy, the initial place from which a cancer spreads in the body. Much less often it is a secondary malignancy, one in which the cancer has spread to the penis from elsewhere. The staging of penile cancer is determined by the extent of tumor invasion, nodal metastasis, and distant metastasis.
The T portion of the AJCC TNM staging guidelines are for the primary tumor as follows:
- TX: Primary tumor cannot be assessed.
- T0: No evidence of primary tumor.
- Tis: Carcinoma "in situ".
- Ta: Noninvasive verrucous carcinoma.
- T1a: Tumor invades subepithelial connective tissue without lymph vascular invasion and is not poorly differentiated (i.e., grade 3–4).
- T1b: Tumor invades subepithelial connective tissue with lymph vascular invasion or is poorly differentiated.
- T2: Tumor invades the corpus spongiosum or cavernosum.
- T3: Tumor invades the urethra or prostate.
- T4: Tumor invades other adjacent structures.
Anatomic Stage or Prognostic Groups of penile cancer are as follows:
- Stage 0—Carcinoma "in situ".
- Stage I—The cancer is moderately or well differentiated and only affects the subepithelial connective tissue.
- Stage II—The cancer is poorly differentiated, affects lymphatics, or invades the corpora or urethra.
- Stage IIIa—There is deep invasion into the penis and metastasis in one lymph node.
- Stage IIIb—There is deep invasion into the penis and metastasis into multiple inguinal lymph nodes.
- Stage IV—The cancer has invaded into structures adjacent to the penis, metastasized to pelvic nodes, or distant metastasis is present.
Most vaginal cancers do not cause signs or symptoms early on. When vaginal cancer does cause symptoms, they may include:
- Vaginal discharge or abnormal bleeding.
- Unusally heavy flow of blood
- Bleeding after menopause
- Bleeding between periods; or any other
- Bleeding that is longer than normal for you
- Blood in the stool or urine
- Frequent or urgent need to urinate
- Feeling constipated
- pain during sexual intercourse
- a lump or growth in the vagina that can be felt
Enlarged pelvic lymph nodes can sometimes be palpated.
Vaginal squamous cell carcinoma spreads slowly and usually stays near the vagina, but may spread to the lungs and liver. This is the most common type of vaginal cancer.
Esophageal cancer may be due to either squamous cell carcinoma (ESCC) or adenocarcinoma (EAC). SCCs tend to occur closer to the mouth, while adenocarcinomas occur closer to the stomach. Dysphagia (difficulty swallowing, solids worse than liquids) and painful swallowing are common initial symptoms. If the disease is localized, surgical removal of the affected esophagus may offer the possibility of a cure. If the disease has spread, chemotherapy and radiotherapy are commonly used.
The possible signs of oropharyngeal cancer are:
- A sore throat that persists
- Pain or difficulty with swallowing
- Unexplained weight loss
- Voice changes
- Ear pain
- A lump in the back of the throat or mouth
- A lump in the neck
- A dull pain behind the sternum
- Cough
Most cases (80%) of squamous cell carcinoma attributed to ultraviolet radiation present in areas of the skin that are usually more exposed to sunlight (e.g., head, face, neck). Although a particular form of squamous cell carcinoma, Kangri cancer is more often associated with the abdomen, thigh, and leg regions due to the usage and positioning of kangri pots, which come in close contact with these anatomical features.
Over time, the use of Kangri pots to keep warm results in erythema ab igne, a precancerous keratotic growth that “take the shape of superficial, serpegenous, reticular blackish brown colored lesions.” Eventually, the cells at the lesion site become more irregular in shape and form; the lesions “ulcerate” and may become itchy and bloody. The resulting irregular growth is the presentation of Kangri cancer.
Oral cancer, also known as mouth cancer, is a type of head and neck cancer and is any cancerous tissue growth located in the oral cavity.
It may arise as a primary lesion originating in any of the tissues in the mouth, by metastasis from a distant site of origin, or by extension from a neighboring anatomic structure, such as the nasal cavity. Alternatively, the oral cancers may originate in any of the tissues of the mouth, and may be of varied histologic types: teratoma, adenocarcinoma derived from a major or minor salivary gland, lymphoma from tonsillar or other lymphoid tissue, or melanoma from the pigment-producing cells of the oral mucosa. There are several types of oral cancers, but around 90% are squamous cell carcinomas, originating in the tissues that line the mouth and lips. Oral or mouth cancer most commonly involves the tongue. It may also occur on the floor of the mouth, cheek lining, gingiva (gums), lips, or palate (roof of the mouth). Most oral cancers look very similar under the microscope and are called squamous cell carcinoma, but less commonly other types of oral cancer occur, such as Kaposi's sarcoma.
In 2013 oral cancer resulted in 135,000 deaths up from 84,000 deaths in 1990. Five-year survival rates in the United States are 63%.
Symptoms of anal cancer can include pain or pressure in the anus or rectum, a change in bowel habits, a lump near the anus, rectal bleeding, itching or discharge. Bleeding may be severe.
Oropharyngeal cancer is a disease in which cancer form in the tissues of the throat (oropharynx). The oropharynx is the middle part of the throat that includes the base of the tongue, the tonsils, the soft palate, and the walls of the pharynx. Oropharyngeal cancers can be divided into two types, HPV-positive, which are related to human papillomavirus infection, and HPV-negative cancers, which are usually linked to alcohol or tobacco use.
Kangri cancer is a type of squamous-cell carcinoma of the skin. It is found only in Kashmir in the northwest of the Indian subcontinent. It occurs on the lower abdomen and inner thighs and is due to the use of a kangri, a baked clay pot weaved around with wicker-work, used as a source for warmth by people in Kashmir during cold weather. One of the earliest records of the condition was described in 1881 by surgeons at the Kashmir Mission Hospital and its cause was recognized in the early 20th century as described by Arthur Neve.
Despite current knowledge of the cause of this condition, cases are still being reported.
Other conditions associated with prolonged use of the kangri in this fashion include erythema ab igne, a reticulate hypermelanosis with erythema.
Vaginal cancer is any type of cancer that forms in the tissues of the vagina. Primary vaginal cancer is rare in the general population of women and is usually a squamous-cell carcinoma. Metastases are more common. Vaginal cancer occurs more often in women over age 50, but can occur at any age, even in infancy. It often can be cured if found and treated in early stages. Surgery alone or surgery combined with pelvic radiation is typically used to treat vaginal cancer.
While each type of cancer has its own distinctive symptoms, most of them can indicate their presence by the occurrence and the prolonged presence of any common symptom. Some of the general symptoms of cancer in cats are:
- Any lump that changes shape or size
- Any sore that does not heal
- Change in bowel or bladder habits
- Difficulty eating or swallowing
- Difficulty urinating or defecating
- Unexplained bleeding or discharge from body
- Loss of appetite
- Chronic weight loss
- Coughing or difficulty breathing
- Stiffness
- Oral odor
Note that ravenous hunger, while a sign of other diseases like hyperthyroid, can also be a sign of cancer.
Symptoms that may be caused by urethral cancer include:
Bleeding from the urethra or blood in the urine,
Weak or interrupted flow of urine,
Urination occurs often, painful urination, inability to pass urine,
A lump or thickness in the perineum or penis,
Discharge from the urethra,
Enlarged lymph nodes or pain in the groin or vaginal area.
Lymphoma is the most common form of cancer in cats, which is often associated with feline leukemia virus, and accounts for 25 percent of all cases. Feline lymphoma usually strikes the digestive system, causing excessive vomiting and diarrhea. Other common symptoms of lymphoma in cats include swollen lymph nodes, loss of appetite, weight loss, and difficulty breathing.
Hypopharyngeal cancer is a disease in which malignant cells grow in the hypopharynx (the area where the larynx and esophagus meet).
It first forms in the outer layer (epithelium) of the hypopharynx (last part of the pharynx), which is split into three areas. Progression of the disease is defined by the spread of cancer into one or more areas and into deeper tissues.
This type of cancer is rare. Only about 2,500 cases are seen in the US each year. Because of this, Hypopharyngeal Cancer is difficult to catch in its earliest stages and has one of the highest mortality rates of any head and neck cancer.
Symptoms of Hypopharyngeal Cancer include:
- Swollen lymph nodes in the neck (first sign of a problem in half of all patients)
- Sore throat in one location that persists after treatment
- Pain that radiates from the throat to the ears
- Difficult or painful swallowing (often leads to malnutrition and weight loss because of a refusal to eat)
- Voice changes (late stage cancer)
Symptoms of cancer in dogs may include:
- Lumps (which are not always malignant, but should always be examined by a vet)
- Swelling
- Persistent sores
- Abnormal discharge from any part of the body
- Bad breath
- Listlessness/lethargy
- Rapid, often unexplained weight loss
- Sudden lameness
- Offensive odor
- Black, tarry stools (a symptom of ulcers, which can be caused by mast cell tumors)
- Decreased or loss of appetite
- Difficulty breathing, urinating or defecating
Anal cancer is a cancer (malignant tumor) which arises from the anus, the distal opening of the gastrointestinal tract. It is a distinct entity from the more common colorectal cancer.
Anal cancer is typically an anal squamous cell carcinoma that arises near the squamocolumnar junction, often linked to human papillomavirus (HPV) infection. It may be keratinizing (basaloid) or non-keratinizing (cloacogenic). Other types of anal cancer are adenocarcinoma, lymphoma, sarcoma or melanoma. From data collected 2004-2010, the relative five year survival rate in the United States is 65.5%, though individual rates may vary depending upon the stage of cancer at diagnosis and the response to treatment.
Urethral cancer is cancer originating from the urethra. Cancer in this location is rare, and the most common type is papillary transitional cell carcinoma. The most common site of urethral cancer is the bulbomembranous urethra.
Squamous-cell skin cancer (SCC) is commonly a red, scaling, thickened patch on sun-exposed skin. Some are firm hard nodules and dome shaped like keratoacanthomas. Ulceration and bleeding may occur. When SCC is not treated, it may develop into a large mass. Squamous-cell is the second most common skin cancer. It is dangerous, but not nearly as dangerous as a melanoma.