Sinus histiocytosis with massive lymphadenopathy (SHML) is a benign, self‐limiting condition of unknown etiology, which generally presents as massive bilateral cervical lymphadenopathy. It is important to distinguish SHML from other causes of histiocytosis because of the different treatment modalities. This study was carried out to assess the utility of fine‐needle aspiration cytology (FNAC) findings in SHML and to distinguish if from other reactive lymphadenopathies. The lymph nodes in 4 patients (3 male and 1 female) presenting with massive bilateral cervical lymphadenopathy were aspirated. All presented with persistent bilateral cervical lymphadenopathy, polymorphnuclear leukocytosis, and raised erythrocyte sedimentation rate (ESR). Smears showed a reactive lymphoid population consisting of mature lymphocytes, plasma cells, a few polymorphs, and many histiocytes showing emperipolesis. Based on the cytologic and clinical findings, a diagnosis of SHML was made. Histopathology confirmed the diagnosis in all cases. A conclusive diagnosis of SHML can be based on cytology, provided that the cytologic findings are interpreted in the appropriate clinical context. Biopsy can be avoided in these patients. Diagn. Cytopathol. 2000;22:181–185. © 2000 Wiley‐Liss, Inc.

Cervical melanoma is a rare neoplasm and is seldom diagnosed by cervical scrape cytology. The possibility of metastatic melanoma should be excluded before making a diagnosis of primary cervical melanoma. We present a case of primary cervical melanoma diagnosed by cervical scrape cytology and a review of literature. The patient presented with vaginal bleeding of 3 mo duration and an ulcerated cervical growth. Cervical smear showed bizarre and abnormal cells containing pigment.

The upper tarsal conjunctiva is in constant friction with the surface of the contact lens. The conjunctival surfaces of 80 soft and gas-permeable contact lens wearers (40 each) and 20 controls were studied using biomicroscopy and impression cytology. A filter dissolution technique was used to process the conjunctival imprints. Biomicroscopic and cytologic grading of the conjunctivae was performed using four-tier grading systems. Impression cytology is a non-invasive, painless procedure. The altered technique of processing yielded better cellularity and excellent cellular detail. On biomicroscopy and cytology, all controls showed Grade 1 appearances. Soft lens wearers who were symptomatic were found to have a significant increase in both biomicroscopic and cytologic grades, when compared with their asymptomatic counterparts. No correlation was found between duration of lens use and biomicroscopic or cytologic grades. All changes were found to be more severe in soft lens wearers.

Scanning electron microscopic analysis (SEM) of 50 pre-selected breast aspirates was performed after light microscopy and cytomorphological evaluation. SEM analysis of these aspirates revealed the presence of microvilli (mv), microprojections, blebs and irregular contours in malignant cells. Benign cells were regular, globular and smooth. SEM provided additional morphologic data which if used in conjunction with light microscopy can assist in reaching a correct diagnosis.

This study was carried out to examine the cytomorphologic features of metastatic breast tumors and to assess the utility of fine‐needle aspiration cytology (FNAC) in diagnosing these tumors. The study group comprised five females and one male, all presenting with a breast mass. Their ages ranged between 35 and 65 years. FNAC of the breast mass was done in all cases. Three of the cases were previously diagnosed as squamous cell carcinoma (SCC) of the cervix, mucinous cystadenocarcinoma (MCA) of the ovary, and melanoma. Three cases presented initially with a breast mass. These included melanoma, non‐Hodgkin's lymphoma (NHL), and plasmacytoma. The diagnosis of NHL was confirmed on histology. The patient with plasmacytoma presented primarily with a breast lump but subsequently developed multiple myeloma, and in one case of melanoma the primary tumor was detected after breast metastases. Preoperative FNAC of extramammary tumors metastatic to the breast is invaluable because the management of the patient differs entirely from that of a primary neoplasm. An accurate diagnosis can be made with the help of clinical and radiological correlation. If available, a perusal of previous history and biopsy material may prove useful. Diagn. Cytopathol. 1999;21:319–323. © 1999 Wiley‐Liss, Inc.