Epitheloid

After amassing substances that they cannot digest macrophages develop to epitheloid cells, (4) imaging the maxillofacial region with orthopantamograph was challenging as the metal piece appeared radiopaque and its position was in plane with the shadow of the hard palate.

Histopathological study of the sections revealed epitheloid granuloma with multinucleate giant cells with large areas of caseating necrosis suggestive of tuberculosis.

VDRL was non-reactive and Skin biopsy from the lesion on the Mantoux site showed epitheloid cell granulomas in the superficial dermis surrounding the hair follicle.

Out of 67 cases of granulomatous lymphadenitis characterized by epitheloid granuloma with or without giant cells and with or without necrosis, AFS for tubercular bacilli was found in 28 cases (9.42%) and reported as tubercular lymphadenitis.

1 Inflammatory 6 3 1 -- 10 33.33% cells 2 Epitheloid cells 11 3 5 2 21 70% 3 Giant cells 9 4 4 4 21 70% 4 Hyperkeratosis 1 2 -- 1 4 13.33% 5 Tuberculoid 10 5 4 2 21 70% granuloma 6 AFB 1 -- 1 -- 2 6.66% Table 4: Percentage of distribution of lesions of cutaneous tuberculosis on body Area of involvement TBVC LV Scro PNT Total Percentage Upper limbs 12 2 14 46.66% Lower limbs 2 4 6 20% Chest 2 2 6.66% Inguinal area 2 2 6.66% Face 2 2 6.66% Neck and axilla 2 2 6.66% Generalized papillar 2 2 6.66% eruptions Fig.

His intra abdominal lymph node biopsy revealed effacement of lymph node architecture by many histiocytes mixed with eosinophils, plasma cells and vague collections of epitheloid cells.

They are usually distinct from other types of uterine mesenchymal tumors such as endometrial stromal sarcomas and epitheloid perivascular neoplasms (PEComas) by being negative for other markers like CD10 and HMB-45, respectively (Ip et al.).

Histopathology using hematoxylin and eosin staining of the mass revealed massive infiltration of macrophages interspersed between acini like arrangements of epitheloid cells (Fig.

Bone marrow reticulum also contained epitheloid histiocytes and multinuclear phagocytes and hystiocytes.

The diagnostic criterion for tuberculosis was the presence of caseating epitheloid cell granulomas in biopsy specimen.

(9) Individual tumor cells are often round to oval with scant or moderate eosinophillic cytoplasm and pleomorphic nuclei with rhabdoid and epitheloid cells scattered at periphery.9 ESMC expresses neuroendocrine differentiation with strong immunopositivity for vimentin and synaptophysin (7) and weak or focal positivity for EMA and S-100.7 Myxoid matrix with lobulated neoplastic cells is also seen in chordoma, parachordoma, chordoid meningiomas, and myxopapillary ependymoma.

Histopathologic types of the tumors were epitheloid in 1 eye and mixed in 9 eyes.