Hematopathology
Soroush Felezi; Anahita Nosrati; Mohammad Eslami Jouybari; Javane Jafarshad
Abstract
Dendritic cells (DCs) are key arms of immune system, which act in antigen presenting processes, and are considered as a bridge between innate and adaptive immune responses. DCs are found in both lymphoid and non-lymphoid organs. They are called interdigitating dendritic cells (IDCs) in secondary lymphoid ...
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Dendritic cells (DCs) are key arms of immune system, which act in antigen presenting processes, and are considered as a bridge between innate and adaptive immune responses. DCs are found in both lymphoid and non-lymphoid organs. They are called interdigitating dendritic cells (IDCs) in secondary lymphoid organs. IDCs lack lineage surface markers and are positive for S-100 and vimentin. IDC sarcoma (IDCS) is a very rare neoplasm, which mainly affects lymph nodes, though there are reports of extra-nodal involvement. IDCS is thought to have poor prognosis. Although there is no consensus on the treatment modalities, such options as radicalsurgery, chemotherapy, and radiotherapy are performed depending on severity and site of the lesion. In this study, we present a case of IDCS in a 53-year-old male with a history of several skin lesions and prior diagnoses of basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and metatypical carcinoma (MTC).
Shokouh aghipour zahir; Kiyanoosh Sedaghat; Saeed Kargar
Volume 7, Issue 4 , September 2012, , Pages 246-250
Abstract
Endometrial adenocarcinoma is uncommon in fewer than 40-year-old people. The first common sign and symptoms are abnormal vaginal bleeding and discharge. Metastasis is occurred in the late stage. Here we present a 31-year-old nullipar woman who was admitted to surgical ward with enlarged right inguinal ...
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Endometrial adenocarcinoma is uncommon in fewer than 40-year-old people. The first common sign and symptoms are abnormal vaginal bleeding and discharge. Metastasis is occurred in the late stage. Here we present a 31-year-old nullipar woman who was admitted to surgical ward with enlarged right inguinal lymphnode from one month ago. She had no history of previous malignancy, infectious condition, vaginal bleeding, and discharge. Abdominal sonography revealed no abnormality. She underwent surgical biopsy and metastatic adenocarcinoma most suspected from genital tract was reported. Based on pathological recommendation diagnostic curettage was performed and endometrial adenocarcinoma of conventional type as a first origin was confirmed. To our knowledge metastasis to inguinal lymph node as a first manifestation of endometrial carcinoma is rare.
Indranil Chakrabarti; Anuradha De; Kaushik Majumdar; Amita Amita
Volume 5, Issue 3 , June 2010, , Pages 150-153
Abstract
Adenosquamous carcinomas of stomach are rare entities comprising 0.5% of stomach carcinomas. Here, we report a case of a 50-year-old female, who presented with weakness, pallor, and symptoms of gastric outlet obstruction. A partial gastrectomy was done and histology showed evidence of adenosquamous ...
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Adenosquamous carcinomas of stomach are rare entities comprising 0.5% of stomach carcinomas. Here, we report a case of a 50-year-old female, who presented with weakness, pallor, and symptoms of gastric outlet obstruction. A partial gastrectomy was done and histology showed evidence of adenosquamous carcinoma of the antrum with metastasis to the perigastric lymph nodes. The patient condition improved at 6-month follow-up.
Mohammad Rakhshan; Azadeh Rakhshan
Volume 4, Issue 4 , September 2009, , Pages 147-150
Abstract
Background and Objective: Fine needle aspiration cytology (FNAC) is a well-established method of diagnosis in palpable masses of various sites. This study was conducted to evaluate the usefulness of FNAC as a diagnostic tool in the management of patients with cervical lymphadenopathy. Patients and Methods: ...
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Background and Objective: Fine needle aspiration cytology (FNAC) is a well-established method of diagnosis in palpable masses of various sites. This study was conducted to evaluate the usefulness of FNAC as a diagnostic tool in the management of patients with cervical lymphadenopathy. Patients and Methods: Totally 178 patients admitted to Loghman-Hakim Hospital , Tehran, Iran, with cervical masses, were included in this study. They had undergone FNA and subsequently excisional biopsy of the same neck mass in which a lymphoid tissue lesion had been established. Results: Reactive lymphadenitis, metastatic neoplasm, Hodgkin’s lymphoma, and non-Hodgkin’s lymphoma constituted 59.6%, 17.9%, 14.6% and 7.8% of total cases, respectively. In 27 cases (15.2%), the FNA findings were nondiagnostic. Diagnostic accuracy of FNAC was about 88%. Sensitivity, specificity, positive and negative predictive values were 75.8%, 96.6%, 94% and 85.1%, respectively. Conclusion: FNAC has a high accuracy in the diagnosis of malignancies of cervical lymph nodes, but due to the existance of false negative cases, the benign results should be further evaluated if high clinical suspicion of malignancy exists.
Nasrin Shayanfar; Shahriar Shahriar Zohourian Shahzadi
Volume 3, Issue 1 , January 2008, , Pages 43-46
Abstract
Schwannomas are benign nerve sheath tumors that originate from any anatomical site. Most of the schwannomas are found in the head, neck or limbs. Schwannoma arising in a lymph node is extremely rare. We have found only four cases in the review of the literature. We experienced a case of intranodal ...
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Schwannomas are benign nerve sheath tumors that originate from any anatomical site. Most of the schwannomas are found in the head, neck or limbs. Schwannoma arising in a lymph node is extremely rare. We have found only four cases in the review of the literature. We experienced a case of intranodal schwannoma in a perigastric lymph node. A 72 year-old female underwent cholecystectomy due to clinical signs of cholecystitis. A mass was found in perigastric area on lesser curvature of the stomach. The mass was excised in an encapsulated state. On histological examination, the node was composed of a proliferation of bland spindle cells, which immunohistochemically was positive for S100 protein and negative for smooth muscle actin, desmin, and cytokeratin. The morphologic and immunatistochemical studies revealed an extremely rare case of schwannoma of the lymph node.
