An unusual adenosquamous carcinoma originating in the prostate of a 73-year-old man is described. The histological finding showed a well differentiated squamous cell carcinoma admixed in an adenocarcinomatous area. A transitional area of 2 carcinomatous elements was also noted. Seven months prior to the development of this lesion, a diagnosis of adenocarcinoma had been established by transurethral resection of the prostate and the patient had been treated with bilateral orchiectomy. This is the first case of adenosquamous carcinoma of the prostate reported in Korea. The pathogenesis and previous reports of this lesion will be discussed.
Aged ; Carcinoma, Adenosquamous/surgery ; Carcinoma, Adenosquamous/pathology* ; Carcinoma, Adenosquamous/metabolism ; Case Report ; Human ; Immunohistochemistry ; Keratin/metabolism ; Male ; Orchiectomy ; Prostate-Specific Antigen/metabolism ; Prostatic Neoplasms/surgery ; Prostatic Neoplasms/pathology* ; Prostatic Neoplasms/metabolism

Primary adenosquamous carcinoma of the liver is a very rare type of cholangiocarcinoma and is defined as a cancer containing both squamous and adenomatous components in the same lesion. Recently, we experienced a primary adenosquamous carcinoma of the liver presented as liver abscess. A 63-year-old man was presented with a 4-day history of fever and chill. The radiologic study showed a 4 cm-sized, central hypoattenuated mass with peripheral rim enhancement in the left lobe of the liver. Ultrasonography-guided aspiration and biopsy suggested an adenocarcinoma with abscess in the liver. At laparotomy, the tumor occupied the left lobe of the liver and invaded the right diaphragm. An extended left lobectomy and a partial excision of the involved diaphragm were done. Grossly, the tumor was 6x5x5 cm in size and had an eccentric necrosis. Microscopically, the tumor was composed of adenocarcinoma and squamous cell carcinoma with a transitional area.
Carcinoma, Adenosquamous/*complications/pathology/surgery ; Case Report ; Human ; Liver Abscess/*etiology ; Liver Neoplasms/*complications/pathology/surgery ; Male ; Middle Age

Carcinoma, Adenosquamous ; surgery ; Heart Atria ; Heart Neoplasms ; surgery ; Humans ; Lung Neoplasms ; surgery ; Male ; Middle Aged ; Myxoma ; surgery ; Neoplasms, Multiple Primary ; surgery

Carcinoma, Adenosquamous ; pathology ; Carcinoma, Squamous Cell ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Humans ; Jejunal Neoplasms ; metabolism ; pathology ; surgery ; Jejunum ; surgery ; Keratins ; metabolism ; Male ; Middle Aged

Adenosquamous carcinoma of the papilla of Vater is a rare tumor and only a few cases have been reported so far. Here, we report a case of adenosquamous carcinoma in a 76-year-old male who presented with jaundice and right upper quadrant abdominal pain. Ultrasonography and enhanced abdominal CT scans showed dilated common bile duct (CBD) and intrahepatic bile duct (IHD) with a suspicious obstructing mass in distal CBD. On endoscopy, obstructing and ulcerated mass was noted on the papilla of Vater. Histopathological inspection of the biopsied specimens from mass showed adenosquamous cell carcinoma of the papilla of Vater. Since the patient refused operation, we inserted a self-expandable metallic stent in distal CBD. This is the first case report on adenosquamous carcinoma of the papilla of Vater in Korea.
Aged ; Ampulla of Vater/*pathology ; Carcinoma, Adenosquamous/*diagnosis/pathology/surgery ; Cell Differentiation ; Humans ; Immunohistochemistry ; Male ; Tomography, X-Ray Computed

No abstract available.
Aged ; Carcinoma, Adenosquamous/*pathology/surgery ; Humans ; Keratin-7/metabolism ; Liver Function Tests ; Liver Neoplasms/*pathology/surgery ; Lymph Nodes/pathology/surgery ; Male ; Membrane Proteins/metabolism ; Tomography, X-Ray Computed

OBJECTIVETo discuss the diagnosis and treatment of rare mixed prostatic carcinoma.

METHODSWe retrospectively analyzed the clinical data of 6 cases of mixed prostatic tumor confirmed by surgery or transrectal ultrasound guided prostate biopsy, and reviewed the related literature.

RESULTSThree of the patients (2 with mixed small cell carcinoma and adenocarcinoma and 1 with adenosquamous carcinoma of the prostate) underwent palliative transurethral electrovaporization of the prostate (TUVP) and endocrine therapy, but all died within 7 - 10 months. The other 3 (2 with adenosquamous carcinoma and 1 with carcinosarcoma of the prostate) received cystoprostatectomy, urinary diversion, pelvic lymphadenectomy and radiation therapy, and survived for more than 12 months, with 2 of them still under the follow-up observation.

CONCLUSIONMixed prostatic carcinoma behaves aggressively with poor prognosis, of which the diagnosis relies on meticulous pathological examination and immunohistochemical techniques, and the most effective treatment is radical surgery.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Carcinoma, Adenosquamous ; diagnosis ; surgery ; Carcinosarcoma ; diagnosis ; surgery ; Humans ; Male ; Middle Aged ; Prostatic Neoplasms ; diagnosis ; surgery ; Retrospective Studies ; Young Adult

Carcinoma, Adenosquamous ; complications ; diagnosis ; surgery ; Cystectomy ; Humans ; Male ; Middle Aged ; Prostatectomy ; Prostatic Neoplasms ; complications ; diagnosis ; surgery ; Urinary Bladder Neoplasms ; diagnosis ; secondary ; surgery

Aged ; Carcinoembryonic Antigen ; metabolism ; Carcinoma, Adenosquamous ; metabolism ; pathology ; surgery ; Cecal Neoplasms ; metabolism ; pathology ; surgery ; Cecum ; chemistry ; pathology ; surgery ; Female ; Humans ; Immunohistochemistry ; Lymphatic Metastasis ; Membrane Proteins ; metabolism

Primary adenosquamous carcinoma of the liver is generally considered as an extremely rare subtype of cholangiocarcinoma. It has been reported mostly in a form of case studies. As far as we know, there was only one case report on tumor related with biliary fistula. Recently, we experienced a case of primary adenosquamous carcinoma of liver with a formation of tumor-colonic fistula. A 54-year-old man was transferred to our hospital due to liver mass detected by abdominal ultrasonogram. Dynamic computed tomogram of liver showed a large irregular hypodense mass without rim enhancement in right lobe of liver and also suggested a fistula formation between the tumor and hepatic flexure of right colon. Colonoscopic examination showed a large colonic wall defect in hepatic flexure and a friable, nodular mucosa around the defected colonic wall. Extended right lobectomy and right hemicolectomy were done. Microscopically, the tumor was composed of squamous cell carcinoma mainly with foci of the adenocarcinoma component.
Carcinoma, Adenosquamous/*pathology/radiography/surgery ; Colonic Diseases/*pathology ; Colonoscopy ; Humans ; Intestinal Fistula/*pathology ; Liver Neoplasms/*pathology/radiography/surgery ; Male ; Middle Aged ; Tomography, X-Ray Computed