honeycomb pattern

(redirected from Honeycomb Appearance)

hon·ey·comb pat·tern

dense, slightly irregular circular shadows, most common next to the pleura at the lung base, on chest radiographs or CT; caused by chronic interstitial fibrosis of diverse causes.
Farlex Partner Medical Dictionary © Farlex 2012
Cytology Endometrium Honeycomb clusters correspond to benign monolayers of small endometrial cells with uniform, oval nuclei, bland or slightly granular chromatin obtained on a pap smear.
Cytology Pancreas Honeycombing refers to the orderly arrangement of normal flattened pancreatic ductal epithelium, as seen by aspiration cytology. Cf Drunken honeycomb
Cytology Thyroid Honeycombs are seen in aspirates of benign follicular epithelium and correspond to the orderly two-dimensional arrangement of adenomatous thyroid follicles ('macrofollicles'), which range from 50–500µm in diameter
Hepatology Honeycombing refers to a reticular pattern of increased expression of HLA-A, B, C antigens in the liver of patients with HCV infection, which may be more prominent in non-responders to interferon therapy
Imaging-bone A honeycomb pattern is seen in a plain skull film as patchy new bone filling in underlying osteoporosis circumscripta, typical of Paget’s disease of bone. The honeycomb pattern also occurs in circumscribed slow-growing, non-enhancing lytic masses—e.g., haemangiomas, which often have intralesional calcification, many of which have peripheral sclerosis
Imaging-lung Accented interstitial markings In pulmonary imaging, honeycombing refers to coarsened pulmonary parenchyma—clustered, thick-walled cystic spaces representing dilated and thickened bronchial walls; seen in bronchiectasis—seen on a plain chest film and on CT—in which there is partial alveolar wall destruction, incomplete replacement, and alveolar thickening by interstitial fibrosis—in contrast, emphysema demonstrates alveolar wall attenuation, a pattern typical of advanced interstitial pneumonia. The honeycomb pattern seen by imaging appears unchanged at post-mortem or post-pneumonectomy examination of the lung
Diff Dx Adenocarcinoma, asbestosis, berylliosis, chronic allergic alveolitis, chronic granulomatous infections, chronic interstitial pulmonary oedema, collagen vascular disease—SLE, progressive systemic sclerosis, cryptogenic fibrosing alveolitis, diffuse alveolar damage—in the organization phase—eosinophilic granuloma, extrinsic allergic alveolitis, haemosiderosis, interstitial fibrosis, interstitial pneumonia—linked to drugs—Langerhans’ cell histiocytosis, lymphangiomatosis, lymphocytic interstitial pneumonia, pneumoconiosis, radiation, recurrent aspiration pneumonia, rheumatoid arthritis, end-stage sarcoidosis, scleroderma, tuberous sclerosis
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

honeycomb pattern

A reticulated or net-like pattern with relative periodicity in a 2-D plane Bone radiology An HP is seen in a plain skull film as patchy new bone fills in underlying osteoporosis circumscripta is typical of Paget's disease of bone Pulmonology Accented interstitial markings A term for the coarsened pulmonary parenchyma seen on a plain chest film, in which there is partial alveolar wall destruction, incomplete replacement, and alveolar thickening by interstial fibrosis–in contrast, emphysema demonstrates alveolar wall attenuation, a pattern typical of advanced interstitial pneumonia Diff Dx AdenoCA, asbestosis, berylliosis, chronic allergic alveolitis, chronic granulomatous infections, chronic interstitial pulmonary edema, collagen vascular disease–SLE, progressive systemic sclerosis, diffuse alveolar damage–in the organization phase, eosinophilic granuloma, hemosiderosis, interstitial fibrosis, interstitial pneumonia–linked to drugs, Langerhans' cell histiocytosis, lymphangiomatosis, lymphocytic interstitial pneumonia, pneumoconiosis, radiation, recurrent aspiration pneumonia, rheumatoid arthritis, end-stage sarcoidosis, scleroderma, tuberous sclerosis. Cf Chicken wire pattern.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

hon·ey·comb pat·tern

(hŏn'ē-kōm pat'ĕrn)
Dense, slightly irregular circular shadows, most common next to the pleura at the lung base, on chest radiographs or computed tomographs; caused by chronic interstitial fibrosis of diverse causes.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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References in periodicals archive ?
Arthrography and computed tomography (CT) images of the left hip joint also revealed a honeycomb appearance of the lesion (Figure 3).
Honeycomb appearance was present in the postero-basal region (Figure-1A).
(6) Radiographically it may appear unilocular or multilocular with soap bubble or honeycomb appearance; buccal and lingual expansion of the cortex invariably accompanies ameloblastoma.
It is characterised by numerous oval lucencies (a honeycomb appearance about 2 cm in diameter) of the inner table and diploic space.
Radiographically, there were 19 (55.9%) patients with multilocular radiolucency and 11 (32.4%) patients with unicystic appearance while 4 (11.8%) patients had typical honeycomb appearance. The most common histological pattern was follicular, seen in 21 (61.8%) patients.
This presentation gives way to a honeycomb appearance as the disease progresses.
In contrast to sinonasal ameloblastomas, ameloblastomas arising from the mandible have been reported to show irregular cortical sclerosis, well-defined edges, and cyst formation, and to exhibit an overlapping, multilocular soap-bubble or honeycomb appearance.
TABLE 3 Cervical myelinated axons SAL LDM LDN HDM HDM RDM RDN 0 117 11 32 0 0 0 0 1 23 129 108 124 124 17 28 2 0 0 0 16 16 98 102 3 0 0 0 0 0 25 10 0: Myelin layers are normal, 1: Separation in myelin configuration, 2: Interruption in myelin configuration, 3: Honeycomb appearance SAL: Saline group, LDM: Low Dose Midazolam group, LDN: Low Dose Neostigmine group, HDM: High Dose Midazolam group, HDN: High Dose Neostigmine group, RDM: Repeated Dose of Midazolam group, RDN: Repeated Dose of Neostigmine group.
In polycystic kidney disease, fluid-filled cysts gradually replace normal kidney tissue - giving the kidneys a honeycomb appearance - and eventually making the organs fail.
As an increasing number of cysts are formed, the lung takes on a honeycomb appearance.
A new wrinkle in pleated shades is the Duette shade (opening photo), which has a honeycomb appearance and folds like a pleated shade.