an adult native cock (gallus gallus domesticus) referred to the aviary clinic with multiple different sizes of round dermal nodules. the bird died few days later, and was then submitted for further evaluation. macroscopic and microscopic examinations as well as a pcr test were done to identify type and cause of the tumor. in histopathological assessment of biopsy specimen, it consisted of inter...

Undifferentiated pleomorphic sarcoma, known as malignant fibrous histiocytoma, is a malignant neoplasm that arises in both soft tissue and bones. In 2002, the World Health Organization declassified malignant fibrous histocytoma as a formal diagnostic entity and renamed it 'undifferentiated pleomorphic sarcoma not otherwise specified.' It most commonly occurs in the lower extremities and rarely ...

Kaposi sarcoma is a malignant disease that originates fromthe lymphatic system. Different epidemiological, clinical andhistopathological variants of this neoplasm have been identified.Classic Kaposi sarcoma is one of the four main clinico-epidemiologicvariants. Cutaneous lesions vary from pink patches to darkviolet plaques, nodules or polyps, depending on clinical variantand stage. Kaposi sarco...

Ewing Sarcoma is the second most common primary bone cancer. To date, only a few cases of cutaneous have been published. We present unique case Sarcoma, which presented as blue to violaceous mass on young woman’s chest. The lesion clinically did not align with previous reports but pathology and immunohistochemical stains confirmed diagnosis. Because may masquerade benign tumors, dermatologists ...

BACKGROUND Kaposi's sarcoma is the most common secondary neoplasm to complicate HIV infection and may cause pulmonary disease. METHODS A prospective study was carried out in 140 consecutive patients who were HIV seropositive and required bronchoscopy for new respiratory symptoms of at least two weeks' duration, with either a chest radiographic abnormality or abnormality of pulmonary function....

Cutaneous horn is characterized by the accumulation of abnormal keratinized material and may occur in association with a variety of benign, premalignant, and malignant cutaneous lesions. Cutaneous horn occurs very rarely in association with soft-tissue neoplasias. A cutaneous horn located on the toe was completely removed by excision in a 78-year-old male patient. Macroscopic examination reveal...

Aim. Cavernous hemangioma-like Kaposi sarcoma is a rare morphologic type of Kaposi sarcoma. So far there are no cases in the literature defining the histological features of this morphologic spectrum in detail. In this study we presented two classical-type cutaneous Kaposi sarcoma cases with histologic findings resembling cavernous hemangioma in company with clinical and histopathological data....

Acroangiodermatitis (AAD), also known as Pseudo-Kaposi’s sarcoma, is a rare benign angioproliferative disease associated with chronic venous insufficiency (CVI) or other vascular disorders. We present an 81-year-old male with plaque-like cutaneous lesions, which had progressive erythematous margins, severe pain, and intense pruritus, as well as bilateral swollen and painful feet. It was around ...

Myeloid sarcomas are tumor masses composed of aggregates of malignant myeloid precursors in extramedullary sites including the skin. We report a case of myeloid sarcoma in a patient who presented with an ear lobe mass and facial nerve paralysis. Expression of CD56 by the malignant cells led to an initial misdiagnosis as Merkel cell tumor. Comprehensive pathological evaluation confirmed the diag...