Abdominal Wall ; pathology ; Chondrosarcoma ; pathology ; Humans ; Male ; Middle Aged ; Soft Tissue Neoplasms ; pathology

Abdominal Neoplasms ; pathology ; surgery ; Dendritic Cells, Follicular ; pathology ; Humans ; Male ; Middle Aged ; Pharyngeal Neoplasms ; pathology ; surgery ; Sarcoma ; pathology ; surgery

Malignant mesothelioma (MM) is a relatively rare carcinoma of the mesothelial cells, and it is usually located in the pleural or peritoneal cavity. Here we report on a unique case of MM that developed in the chest, abdominal and pelvic walls in a 77-year-old female patient. CT and MRI revealed mesothelioma that manifested as a giant mass in the right flank and bilateral pelvic walls. The diagnosis was confirmed by the pathology and immunohistochemistry. Though rare, accurate investigation of the radiological features of a body wall MM may help make an exact diagnosis.
Abdominal Neoplasms/diagnosis/*pathology ; Abdominal Wall ; Aged ; Female ; Humans ; Magnetic Resonance Imaging ; Mesothelioma/diagnosis/*pathology ; Muscle Neoplasms/diagnosis/pathology ; Pelvic Neoplasms/diagnosis/*pathology ; Thoracic Neoplasms/diagnosis/*pathology ; Tomography, X-Ray Computed

Two unusual presentations of carcinoma of the right colon are described. One of the two patients presented with huge abdominal abscess with adhesed to surrounding small bowels and the other presented with anterior abdominal wall abscess. Colonic carcinoma very rarely presents as abdominal wall abscess, retropertoneal abscess, groin inflammatory mass, subcutaneous thigh abscess, and obstruction with diastatic rupture of cecum. The appearance of the abscess may antecede any gastrointestinal symptoms, thus lessening the surgeon's suspicion of carcinoma. The literature has been reviewed and the pathology that characterizes such lesions and this management is discussed. The bulky colonic tumors with extensive local invasion and negative mesenteric lymph nodes have a relatively good prognosis if adequate resection is performed.
Abdominal Abscess ; Abdominal Wall ; Abscess* ; Cecum ; Colon* ; Colonic Neoplasms* ; Groin ; Humans ; Lymph Nodes ; Pathology ; Prognosis ; Rupture ; Thigh

Granular cell tumors (GCT) are found in virtually any body site, including the tongue, skin, subcutaneous tissue, breast, rectum and vulva. However, they are rarely seen in the abdominal wall. We report here on a rare case of GCT in the rectus muscle of the abdominal wall. A 44-year-old woman presented with a non-tender, hard mass in the right lower abdominal wall. Upon microscopic examination, the tumor was found to comprise of large polygonal cells with an abundant eosinophilic granular cytoplasm and round to oval nuclei. Upon immunohistochemical staining, the large cells showed S-100 and CD68 positive granular aggregates in the cytoplasm. Many lysosomes of variable size were observed in the cytoplasm.
Abdominal Neoplasms/metabolism/*pathology ; Adult ; Female ; Granular Cell Tumor/metabolism/*pathology ; Humans ; Immunohistochemistry ; Rectus Abdominis/metabolism/*pathology ; S100 Proteins/metabolism

Granular cell tumors (GCT) are found in virtually any body site, including the tongue, skin, subcutaneous tissue, breast, rectum and vulva. However, they are rarely seen in the abdominal wall. We report here on a rare case of GCT in the rectus muscle of the abdominal wall. A 44-year-old woman presented with a non-tender, hard mass in the right lower abdominal wall. Upon microscopic examination, the tumor was found to comprise of large polygonal cells with an abundant eosinophilic granular cytoplasm and round to oval nuclei. Upon immunohistochemical staining, the large cells showed S-100 and CD68 positive granular aggregates in the cytoplasm. Many lysosomes of variable size were observed in the cytoplasm.
Abdominal Neoplasms/metabolism/*pathology ; Adult ; Female ; Granular Cell Tumor/metabolism/*pathology ; Humans ; Immunohistochemistry ; Rectus Abdominis/metabolism/*pathology ; S100 Proteins/metabolism

Abdominal lymphangiomas are uncommon angiomatous tumor occurring mainly in childhood. This is a retrospective clinicopathologic study of 17 cases of abdominal lymphangioma. The patients included are five children and 12 adults, with a mean age at initial presentation of 30.7 years (age ranges 3-63). The locations of the tumors were mesentery (5), retroperitoneum (4), colon (3), omentum (3), mesocolon (1) and gallbladder (1). Infiltrative growth was more common pattern than entirely circumscribed pattern. Masses were mostly multilocular cysts and contained chyle or serous fluid. On immunohistochemical staining, 16 cases were reactive for either CD31 or factor VIII-related antigen. These fact would suggest that intra-abdominal lymphangiomas simulate the immunohistochemical features of collecting lymphatics. Follow up was possible in 12 cases for 3-50 months (mean 19 months) and only one patient showed local recurrence. Although abdominal lymphangiomas are rare in adulthood and correct preoperative diagnosis is difficult, awareness of such a possibility in adulthood will contribute to make a correct preoperative diagnosis.
Abdominal Neoplasms/physiopathology ; Abdominal Neoplasms/pathology* ; Abdominal Neoplasms/metabolism ; Adult ; Antigens, CD31/biosynthesis ; Child ; Child, Preschool ; Factor VIII/biosynthesis ; Female ; Human ; Lymphangioma/physiopathology ; Lymphangioma/pathology* ; Lymphangioma/metabolism ; Male ; Middle Age ; Retrospective Studies

Colonoscopic evaluation has revolutionized the management of colorectal disorders, of which colorectal neoplasia is the most important. Experience with 2000 consecutive colonoscopies was reviewed to determine their clinical significance. The symptoms that patients complained about were anal bleeding, abdominal pain, diarrhea, and constipation. Colonic polyps, colon cancer, and ulcerative colitis were diagnosed by colonoscopy. Colonic polyps were the most common pathology for anal bleeding and constipation. Ulcerative colitis was the most common pathology for diarrhea. Intestinal tuberculosis was the most common pathology for abdominal pain. Colon cancer was the most common pathology for tenesmus. Lymphoid hyperplasia was the most common pathology in patients under 10. Ulcerative colitis was the most common pathology in patients in their 3rd or 4th decade. Colonic polyp was the most common pathology in patients in their 5th, 6th, or 7th decade. Colon cancer was the most common pathology in patients in their of 8th or 9th decade. A colonoscopic polypectomy was performed in 49.5% of the colonoscopies, and an open polypectomy was done in 2.7%. There were no surgical complications from the colonoscopies. As a result of this study, it is concluded that total colonoscopic examination should be performed in patients over 40 who complain about rectal bleeding and tenesmus. To avoid complications and give proper management, it is recommended that colonoscopy be performed by a surgeon.
Abdominal Pain ; Colitis, Ulcerative ; Colonic Neoplasms ; Colonic Polyps ; Colonoscopy ; Constipation ; Diarrhea ; Hemorrhage ; Humans ; Hyperplasia ; Pathology ; Tuberculosis

Desmoid tumor is a rare benign tumor derived from fibrous sheath or musculoaponeurotic structure. The tumor is benign histologically but considered as malignant clinically because it has high propensity on infiltrative growth with local invasion and tendency to recurrence after local excision. Especially, when this tumor happens to be in the intra-abdomen, the prognosis is worse because it can cause intestinal obstruction, ureter obstruction and, fistula formation. It also can invade major vessels in abdomen. This tumor occurs more frequently in patients with familial adenomatous polyposis (FAP), in post-partume women, and at old surgical incision site. However, in this case, the patient had neither previous surgery nor a FAP history. We report a rare case of the young male patient who presented with an acute abdomen and underwent laparotomy and was found to have an intra-abdominal desmoid tumor with abscess formation.
Abdominal Abscess/diagnosis ; Adult ; Diagnosis, Differential ; Fibromatosis, Abdominal/*diagnosis/pathology/surgery ; Humans ; Male ; Peritoneal Neoplasms/*diagnosis/pathology/surgery ; Tomography, X-Ray Computed

Abdominal Neoplasms ; secondary ; surgery ; Abdominal Wall ; Antiporters ; metabolism ; Choriocarcinoma ; pathology ; Diagnosis, Differential ; Epithelioid Cells ; pathology ; Female ; Gestational Trophoblastic Disease ; metabolism ; pathology ; secondary ; surgery ; Humans ; Pregnancy ; Uterine Neoplasms ; metabolism ; pathology ; surgery ; Young Adult